Welcome to our Help Center.


Our Help Center is designed to give you a place to get the information you need to be effective at using our site.

You can find information by browsing the sections and categories on the left hand dropdown menu (top if you have a very small screen)

We appreciate any feedback regarding the design of the help center, or new bits of information to add, including tutorials; You can open a ticket with us at any time.

 

What is MiningRigRentals?

We are Marketplace service and Mining community that lets Bitcoin and Altcoin miners list their hardware on our website for hourly leased contracts, which prospective renters can view and purchase a contract from owners of the hardware. 

Renters can view the list of hardware available for lease, and purchase a hourly contract from the rig owner, enabling people without the hardware to gain access to a wide range of available Bitcoin or Altcoin miners.

We also operate a scrypt pool with daily payouts if you are only looking to mine.

We provide an interface for both rig owners, and renters to manage their contracts, view live, and historical hashing rates, as well as gain access to the necessary backend connection service to enable the hardware to be rented out securely and privately to the renter for the rental contract length.

We provide support for these contracts, limited to disputes where rig owner hardware did not perform for the renter, we review all rentals, and provide a fair review and will offer refunds if the rig owner did not live up to the advertised working hash rate.

We understand that renting seems risky. Here at MRR we've put together tools that will help you make the right decision:

  •  Paying with Bitcoin makes renting easy. Simply fund your account and click to rent any rig you wish.
  •  Make rental choices based on "actual" hash rate. Our system tracks the complete hash rate history of all mining rigs. Hash rates are displayed in a convenient graph.
  •  Also make use of the convenient Live Hash rate graphs on individual rig views, as well as a whole aggregate view of all rented rigs on your rental control panel!
  •  We don't want you to only rely on stable hash rates, we've also implemented a rig rating system called RPI which helps you find the best rigs.
  •  We at MRR pride ourselves in our support system, we take the time to review all finished rentals for low performance, so you can be assured that you are getting the best!
  •  Unlike other services, our refunds are precisely calculated to return what you are owed in accepted shares vs. what was advertised. 
  •  Backup pools! Have you ever found yourself trying to be first during a coin launch only to find out your first pool choice isn't up and running? Our system lets you set up to 5 pools in a fail over system.
  •  Choices! We're committed to releasing rental channels for any and all active algorithms. 
  •  We employ an extremely active network of developers. Have a question? No problem, drop by irc.freenode.net and /join #miningrigrentals. Alternatively, use our support ticket system!
  • Our backend proxy system is coded 100% in fast C++ which enjoys super fast reaction times to your pool, as well as enjoying 99.9% uptime.

Here are a few great reasons to list your rig with MRR:

  •  Easy withdrawals. You can enable automatic withdrawals to be sent to your Bitcoin address anytime your account reaches a configured balance.
  •  Website pool manager. Our system allows you to change what pool your miner is connected to from our website. We allow 5 pools to be configured with fail over. FREE!
  •  Hash rate graphs. Our graphs give you up to the minute hash rates displayed with your moving average, we also have a Live Hash rate graph that gives you live data within seconds.
  •  Are you using cudaminer? Wouldn't you love back up pools? Look no further, our system lets you use 5 backup pools and you can control them from our website.
  •  Listing your rig for rent is the best way to maximize your mining profits. However, you never have to list your rig for rent. There is no fee to use our site/service for the miner controls or hash rate graphs.
  •  We have a robust accounting system, where you can see all of your history and how much you have made. Our system includes automatic withdrawal support.
  • Our backend system is coded 100% in fast C++ which enjoys super fast reaction times to your pool, as well as enjoying 99.9% uptime.
  • Choose from a variety of regional backend proxy servers to make your connection as responsive as possible, as well as providing additional backup servers to make sure your rig has 0 downtime.

Why mine at MiningRigRental's Pool

  • We offer daily payouts.
  • See your hashrate information using our existing rental infrastructure
  • You can list your rig for rent for even more potential profit.
  • Available support staff to aid you with any questions or issues.
  • Arm your self with the information you need! We offer a range of payout information, as well as security related information you need to keep your mining safe.

In order to use our website, you should sign up an account with it. It is free to do so and there are no other requirements besides a valid email address used for account recovery purposes.
You can go directly to our register page here.

Registering is pretty basic, provide the username you would like to use when logging in to our website.
Choose a very strong password, a 4 digit pin code, and a valid email.

Please note that you use your username to login, and not your email address.

Login with your username and password.

Navigate to your user settings page by clicking your username in the upper right of the page.
Here, you can configure your BTC Payout address (used for payments from your rigs)
You can configure an auto payout amount, our system will automatically send your payout address and proceeds generated from your rigs when your accounts value is greater than the configured amount.
Take care not to set this if you plan on depositing more than that amount when renting.


You can change your password if necessary, as well as configure various options,
Newsletter Mailings: We may decide to implement a news letter in the future, disable this here.
Rental Communications Notification: We will email you when your rig or rental receives a message.
Rig Rented Notification: We will email you when your rig is rented.
Rig Offline Notification: We will email you if your rig went offline.
Live Hashrate Charts: Enable or disable any live hashrate chart updates.
Public Profile: Your public user profile visibility is enabled here.
Any changes require your 4 digit PIN code.

You may also navigate to your balance page. This can be found under your account and then, Balance.
Here you can see your transaction history, along with a button to download the history for your records.
On this page, you can request a payout of your balance to your configured payout address, as well as view your address used for depositing funds to your account.

RPI, or Rental Performance Index, is a complex algorithm that indicates how successful rentals have been for this rig.
It considers a number of factors including (but not limited to) Hash performance, Rentals completed, and other Issues. The score ranges from 0-100, with 100 being the best possible score.
Good scores range from 90-100 with 95 being the score for new rigs once established with at least 5 rentals without incident. Medium scores range from 70-89. Scores under 70 are considered mediocre, and the rig may not be stable. If the rig looks stable lately, you could give the rig owner the benefit of the doubt and try for a successful rental to help them with their score.
 

Actually Bitcoin mining is already a specialized business and not profitable for everyone. Therefore we strongly encourage anyone interested in mining to do his/her own research and make the calculations before investing any money to the operation.
Here at MiningRigRentals most people are speculating on the price of their mined coins; this can Include mining the coins, waiting for a later time in which they are profitable. Other ways people utilize mining and rentals in general are for getting that lucky block strike, or snatching up hash rate deals. Whatever the reason, please make sure you are calculating your profitability, as we are not responsible if you lose money.

CoinDesk covered everything important regarding this topic in the following article: 
http://www.coindesk.com/information/mining-profitability/

It is written for general audience which means they cover other alt-coins as well. 

 

MiningRigRentals.com provides a unique marketplace for renters and rig owners. We facilitate a safe transaction similar to an escrow service.

Choose the algorithm of the coin you wish to mine and filter the results. Now you can review mining rigs that are listed for rental. We provide renters with tools such as our average hashrate graph, view rental history, and the rigs RPI. Not only can you safely narrow your choices but we also act as a 3rd party mediator of transactional funds should there be a discrepancy between what you paid for and what you received. Once you've selected the rig you wish to rent, you can follow the onscreen instructions to make the exact payment.
Once there is confirmation, the mining rig will automatically switch to the pool of your choice.

 

In order to begin renting here at MiningRigRentals, you may deposit the funds you wish to use to purchase a rental contract into your account here.
To begin, navigate to your accounts Balance page, locate the Bitcoin address used to deposit funds to your account. We also have provided a barcode for compatible devices to use.
Send the amount you wish to have available for renting to the listed address along with the necessary blockchain transaction fee (listed on your balance page).
Transactions take only one confirmation on the blockchain to be posted to your account.

Great! You're one step closer to mining at your pool of choice. Input the exact number of hours you would like to rent the mining rig.
Proceed by clicking "Rent" The next page will allow you to enter 5 total pools. In the first pool #1 spot, enter the pool you wish to immediately begin mining at. The other slots are backup pools should your proceeding pools of choice fail or become unavailable. This is an excellent way to ensure you get up and mining immediately on a coin launch. 

Finish the rental process by clicking on "Instant Pay." That's it! You're on your way to mining, it has never been simpler.

What is a pool?

A pool is a website where you would point your mining hash power at. Generally you get paid by the pool for your fair share of the work you submitted on a regular basis, as opposed to mining without a pool where earnings are irregular.
The type of pool you choose is important. Some pools are specific for different algorithms, or coins, others boast a wide range of mining possibilities. You want to choose a pool that matches the rigs algorithm or vice versa.

Choosing the right pool is the most important decision you need to make when mining. We offer some suggested pools at the Pools & Services page. These are a starting point for you to look at if you don't know where to start. 
The other decision to make is how much will you make. It's important to take a look at the going rate that you are paid at your pool, this means for the particular coin are getting in return for pointing hashrate there, and the current market rates for those coins.
We offer some other tips about how to maximize profits in our Help center.

In order to use a pool, you would need to signup an account on their page, or some allow mining direct to a bitcoin or altcoin address for payments made directly to you from the pool.
Consult the pools page in order to find the information you need to setup a rental pointed to that pool. 
You would look for a configuration page where you can add a pool worker, also the page where the address details for the pool - and the coin you want to mine there. This information is used to point a rental to your pool.
As mentioned some allow using a payout address directly without an account at the pool.


Still confused? Open a ticket with us and we will try to answer your questions.

Unsupported pools

  • p2pool

 

 

Now that you have rented your first rig, you should now see it to begin hash at your pool.

There are a few things to note as important about rentals. Some rigs may take up to 10 minutes to begin hashing, this is more true if the rig is not already mining through the rig owner's pool interface. Some owners chose to not use our interface for whatever reason, however in this case their rig will connect to see if it's rented periodically. Once they connect it will begin to hash at your configured pool.
Should the rig go offline immediately after the rental starts, the system should cancel and refund the rental. Though, if it has not, please submit a ticket about the issue. 

We can also not extend a rental, only the rig owner can extend your rental. These extensions by the rig owner are for compensation for their rig being offline. If rig has gone offline for a long period, over 4 hours, please open a ticket with support so we can cancel and refund the rental.

We provide a live hashrate graph so that you can see the hashrate within seconds of it being generated. In addition you can see on the workers tab the individual miner connections, and see the hashrate of each device, along with it's work difficulty set by Your pool. Some connections may be from devices disconnecting and reconnecting, closed connections disappear after a while. 
The description tab may contain important information by the rig owner, such as work difficulty settings.

Keeping the rental going well. An important step as a renter is to make sure that you have selected a stable pool. Pools that are offline, the rig is not able to connect to and generate work for you. You should utilize our backup pool system so that in the event one of your pools goes offline, the rig can continue to work for you. Some pools may also be broken, usually in these cases you may not see any hashrate on the graph, but the rig is still listed as being online. Choosing a pool that has an interface so you can tell that it is working is important. We are not able to offer refunds for issues relating to your pool. 

The important step of work difficulty settings, with the wide range of speeds of rigs available on MiningRigRentals, there is the need to know about work difficulty settings. These are set on your pool interface, the higher the speed of the rig, the higher the work difficulty. We have provided the rig owner the ability to set the suggested work difficulty for you. This can be seen in the rig properties section. Some pools have auto/variable difficulty, and generally you won't need to set work difficulties. 
If you need to set work difficulties in your pool interface, and you do not know the right one, experiment with the values from lowest to highest. We do have a help center Faq Here that may help.
Some pools you can set the difficulty via the password d=### or diff_#### are examples of some, check your pool documentation.


From here you can continue to monitor the operation of your rental from the rig view. We also have a separate page that represents the rental as itself, you can click on Go To Rental to view this, this is the screen we usually look at when reviewing rentals for you.
You can also click on My Rentals to have an overview of all your rentals, including a live hashrate graph of all your rentals.

Once the rental is finished, we will review the rental within the 12 hour post review period and issue any refunds if there were issues with the rig due to the rig being offline, or not producing hash at a consistent rate before and after your rental.

Unfortunately, this is not possible. The mining rig you rented is configured by it's owner to mine a specific algorithm. You're welcome to contact him but we will be unable to switch your payment amounts and totals.

Make sure you have a second pool in your pool list. If your main pool fails to provide work to our system, our system will disconnect the rig owner's mining rig. If you have a second pool set it will automatically switch to the second pool. It is critical to set more than one pool because of this!
If you have two pools listed and you're sure both pools are functioning properly, please then contact the rig owner immediately. It's our experience that rig owners tend to be just as concerned about down time as their renters are.
If you've set two pools and the rig owner is unresponsive and the rig is still offline please submit a ticket to support.

To provide rig owners with a complete opportunity to compensate time, refunds are usually to be processed until after the rental period has completed.
We many refund and cancel the rental if it has been offline for a long period of time.

There are a lot of variables to the hashrate. It is not uncommon for the hash rate to be 10%-15% above or below the previous 24 hour chart. . Factors such as pool choice, coin difficulty, latency from your pool choice etc could play a major factor in the variation. If you don't feel something is fair, try contacting the rig owner.

Refund Policy

Our system accurately tracks accepted shares, shares are the work marked as completed at your pool by the rig.
There are two components in a rental, first component is the rig, the other is the pool.
We do not offer refunds for pool related issues, as it is your responsibility to add stable, online and working pools. Utilizing our backup pool system significantly reduces pool related hash-rate loss. 
The second component to a rental is the rig. If the rig is offline for some period (shown on the graphs as orange bar), or if the rig consistently shows a pattern of not hashing at the advertised speed, specifically when not rented, we use that data to calculate eligibility for a refund.

Refunds are prorated​ based on the diffrence between the work expected for the length of the rental purchaced, and the shares accepted by your pool. If the rig owner extends your rental to cover for losses, that time is added to the total work recieved. 
We do not offer full refunds, generally speaking. A full refund can only occur if the rig was offline 100% of the time and did not produce any shares at your pool. 

Guidelines

Should you need a refund for partially delivered hash rate and or downtime, please wait until the rental completes and then simply open a ticket for our review. Please open this ticket within 12 hours of the rental completing or we will not be able to refund you since the rig owner is then paid after 12 hours and there will be no funds for a refund: This is our rental holding period, it is assumed that after 12 hours and if there have been no disputes, the rig owner is paid as the contract is considered complete. 

Once we review the rental we will refund exactly what you are owed as a percentage of the average hashrate, based on factors relating to rig owner issues like being offline, or low hashrate that can be determined by reviewing the hashrate of their other rentals or non rented periods. 

As a note, we do manually review all rentals within the 12 hour period and refund the offline time in rentals for which the rig was offline as a service to our renters. We generally only review rentals that complete below 90% of the average hashrate. 

We allow a 10% variation in hashrate to rigs (and 15% for dagger-hashimoto rigs) that consistently hash at their advertised rates to compensate for issues that are outside of the rig owners control such as pool latency, stale shares, rejects and other pool related issues that can and often do occur.
We specifically review each and every rental and should a rented rig show a consistent pattern of marginally less than advertised then we do not apply the grace range and refund accordingly.

If you rent a rig that shows offline status for at least 20 minutes during the first 30 minutes of the rental, the rental will be canceled and you will be refunded. This process is automatic, based on the rig showing as offline status, the rig not hashing is not the same as being offline. If the rig is online and not hashing, it will not auto cancel, as there is likely an issue with your pool.

 

We only accept BTC for purchasing rentals at MiningRigRentals.
It is however extremely simple to convert various popular altcoins to Bitcoins if you would like to make your purchase with your favorite altcoin,
Visit ShapeShift and instantly convert your favorite altcoin into BTC, just input your MRR BTC Deposit address.

Note that we are not associated with this service and take no responsibility for any third party service, we provide it to you for information only. 

We are an advanced service for pooled mining only. We only support stratum based pools for most algorithms. Mining to a wallet is not possible unless you setup your own private pool to your wallet. 

The only exception is ethereum based getwork pools, or ethereum wallet. This can include ethereum derivatives like EXP, ETHC. We do offer a getwork rig section for these ethereum miners, the algorithm is dagger-hashimoto (G)

If you want to setup a private pool, we suggest using UNOMP

Yes, there is a 2% fee charged to renters on rental transactions. This fee is typically not refunded unless the rig completely malfunctions or there is an error on our part.
Why is there a fee? We offer the best support to our users, and will continue to improve and add new features to our service, in order to aid in this we charge a small fee.

We provide an extra avenue of potential profit in your mining adventure. If you've found success mining, simply figure out what it would be worth to you to allow someone else to rent your mining rig. Price your rig accordingly. 
Our service allows you to setup backup pools. This allows you to have multiple fallbacks. We also provide the convenience of allowing you to change your mining rig's pool from anywhere you have access to the internet.

We also provide you with access to live and historical hashrate graphs, an API that you can use to control your rig. We also provide you with a secure location for your mining profits, a convient transaction history. As well as a dedicated support team. You are always paid out when requested, or you can set an auto payout amount.

We're not just a rental service, we also have a scrypt pool for you to mine at,with a daily pay schedule, see the details at your MRR Pool page.

When someone rents out your mining rig, they only have the ability to direct your hashing power to a pool of their choice. You will always control your hardware and mining configuration files.
MiningRigRentals.com adds an additional layer of protection through our specialized proxy connection. 

Getting Started

In order to start mining you need just three things, 
create an account with our site,
create a new rig on your My Rigs page,
setup your miner to connect to MiningRigRentals.


 

1. Sign up with MiningRigRentals

2. Create your Rig on MiningRigRentals

Your second step should be to setup your Rig on MiningRigRentals. You can begin by going to the My Rigs page. Begin by clicking Create new Rig.
Fill in the requested information,
You're welcome to name your rig however you want. Keep in mind this is the first thing your potential renter sees in the rig list.
Set the hashrate of your rig, choose the appropriate mining algorithm (sha256 and scrypt are the most common)
Choose a MiningRigRentals server based on your rigs geographical location.

Once your rig is created, browse to your rig by clicking on it in your rig list.
Here you can configure additional information. You can set a long rig description if you wish (Recommended) 
Make changes to hashrate, server selection. You can set the suggested work difficulty that Renters should use here as well (Important)

You should set the price per MH/Day or GH/Day(sha256) and the minimum and max rental durations.
Once you have completed the information setup, please input your pool settings.

We provide you 5 pool slots where your rig mines at when not rented. It is required to set a pool up here so to show your renter that your rig is working. It also increases the responsiveness of the switch to your renters pool when your rig is rented.
It will mine at your first choice when not rented, if your first choice pool is offline, it will attempt the second, and so on.
When your rig is rented, your rig will mine at the renters configured pool location.

Once you have finalized the setup of your rig, you should set the Rental Status to Available in order to list your rig on our site. It is also not required to have your rig listed as available, though we encourage you to do so.
Also note your Worker Info used for connecting your rig to MiningRigRentals

3. Configure your mining device.

Your miner has to be pointed to one of our stratum servers below and user credentials for your rig have to be specified. We currently operate in the following regions: US East Coast (us-east), Europe/Amsterdam (eu), US West Coast (us-west), US Central (us-central), and Asia-Pacific/Singapore (ap).

The login credentials needed for your miner's configuration file look like this: (please, fill your Username.ID with the supplied Worker Info on your MiningRigRentals Rig)

URL: stratum+tcp://us-central01.miningrigrentals.com:3333
Rig Worker name: Username.ID
Password: anything

The password can be an arbitrary text since there is no security issue present here. If someone tried to connect to our servers with your credentials, whoever would be just mining for your benefit. It is also slightly helpful if you choose a unique password for each physical miner device you point to your rig. 

The servers can be chosen from the following list based on your geographical location:

Servers Location Address
USA, east coast stratum+tcp://us-east01.miningrigrentals.com:3333
USA, west coast stratum+tcp://us-west01.miningrigrentals.com:3333
USA, central stratum+tcp://us-central01.miningrigrentals.com:3333
Asia-Pacific/Singapore stratum+tcp://ap-01.miningrigrentals.com:3333
 
Europe, Amsterdam stratum+tcp://eu-01.miningrigrentals.com:3333
Europe, Germany stratum+tcp://de-01.miningrigrentals.com:3333

You can point more than one hardware device to your Rig. You would take this information and setup your device to connect to MiningRigRentals.

It is important to set the device to connect to our stratum often, usually your first "pool" choice. It is also important to add local backup pool locations to mine at incase your renter or your pool (configured at MiningRigRentals) goes offline. Your rig must support client.reconnect in order to be connected to your rig's temporary port.

Hopefully with this guide you have been able to setup your mining hardware (rig) to connect here and be able to take part in the great potential of additional profit renting will bring you.

Q: My mining rig is listed but it shows: "New" as it's RPI score. How long will my rig continue to display "New?"

A: RPI is scored immediately upon the first rental. However, the score is not published until you've completed 5 rentals. 
This allows your rig some time to generate a value adding score rather then being sent to the bottom of the list off of one bad rental.

You can de-list your rig at any time by clicking on My Rigs, selecting your Rig and setting the Rental Status to Unavailable. This does not cancel any in progress rentals. You would use this for rig maintenance, once your rig is working again, you should re list it.
We do reserve the right to enable or disable any rig, we do this out of concern for our users. 

All payouts are held upto 12 hours after the rental completes. The designated timeframe is to allow for dispute resolution should it be required. After 12 hours your payout will be ready for disbursement.
A manual payout button is located on the "Balance" page. Your payout address should be set on the Settings page along with Autopayout thresholds if needed.
MiningRigRental.com's fee is 3% and is only charged on transactions. Using our service is free otherwise, but we do request that if you have active miners, please enable them for rent and put a decent rental price.

Learn how to use our Pools and Profiles feature by viewing this video we made.

 

Learn how to rent your first rig by watching this tutorial video we made

 

If you have forgotten your PIN, follow these instructions.
Please email support@miningrigrentals.com from the account's assigned email address.
Include your account name, and the new PIN # you would like. (4 numeric digits).

If you have an open ticket; if applicable include the 
Ticket Link (Or ID #), otherwise ignore if you don't have a ticket.
Also, if applicable, update the ticket indicating that you have sent the email (This helps prompt any support personnel to check for the email)

Once you have done this, we will change the PIN as soon as possible, and will inform you via email or updating the ticket.

If you have an issue signing in due to 2FA:
Please email support@miningrigrentals.com from the account's assigned email address.
Include your account nameTicket Link(Or ID #), and your current PIN #. Include a short description of the issue.

Also update the ticket indicating that you have sent the email (This helps prompt any support personnel to check for the email)
Once you have done this, we will remove 2FA as soon as possible, and will inform you via email or updating the ticket.
Thanks for using MRR.

If you have a deposit and it is not confirming, or shows "pending" on your transaction history page,

It is due to the bitcoin blockchain, since the blockchain is what drives bitcoin it's acceptance of your deposit solely depends on it and your transaction fee. We cannot control how fast your deposit takes to deposit, we accept it once it has ONE confirmation.
In order to have a speedy deposit, please tell your client to include a fee of at least 0.0001 per kilobyte. If the blockchain is under a heavy volume of transaction load, it may be necessary to include more. 

Please be patient if your transaction is taking a while, we cannot give any credit for pending transactions. 

Also note, we have noticed some clients like 'Electrum' sending invalid transactions that will never end up depositing due to some issue with the transaction. Please consult the documentation of your client on how to fix this. 

It is technically possible for your username to be changed, however we only allow this in certain cases. Security is the one we would generally allow for username changes. Other reasons are at our discretion.
Contact support about the name change, please make your case good for our review.

If you have forgotten your username, follow these instructions.
Please email support@miningrigrentals.com from the account's assigned email address.

Once you have done this, we will notify you of your current account usernname as soon as possible.

You should be able to update your accounts email address to a new one. Please make sure you do not mistype it, and that it is a valid address. 
You will have to re-confirm you new email address, you will get a confirmation email. If you don't get one, check spam filter, or resend the confirmation using appropriate button on settings page.

Contact support if you need help.

We strongly encourage you to enable the 2FA account security feature by going to your account settings page. Once there, follow the instructions to enable 2FA.

We also encourage you to keep an eye on your Account history page, where you can see the changes made to the account, including login history. 

If you cannot log into your account, it is probably due to one of these reasons:

  1. You are using an incorrect user-name. Please be aware that neither "user@gmail.com" nor "miner.worker2" is a user-name. This problem might be indicated by: "Invalid Username or Password".
  2. You are ignoring case-sensitiveness. Both user-name and password are case-sensitive. This problem might be indicated by: "Invalid Username or Password".
  3. An invalid CAPTCHA Code. We may enable CAPTCHA at points for security reasons, a valid code may be required.
  4. Account Inactivity. We may close accounts if they are inactive for long periods of time (greater then one year.) The details are presented in our Terms of Service when you signed up. Contact support to re-open a closed account.

If you recieved a message regarding being throttled, it means your user had too many failed login attempts. There is a 15 minute cooldown period for this issue. Contact support for further help if you are still having the issue after the 15 minutes.

Please make sure none of these is your case before seeking further help from our support staff for not being able to log in.

A rental is listed as Not Paid when the renter did not have enough funds to complete the payment at the instant the rental started, or when some one else has rented your rig before the person who got the Not Paid message did.
This simply means, the renter was not charged for the rental, since it was invalid. There is no effect on your rigs performance, or RPI score for this. 
If the message was the result of two renters renting at the same time, only one will get the rental, and the rental which is valid, will continue unaffected, while the renter who lost out, will get the Not Paid message, they would have to try at another time.

Your rig will continue to hash at your pool unaffected by the Not paid status.

There is a difference between a nominal hash rate shown in the manual of your mining device and an effective hash rate shown in our system.

Hash rate is the number of hashes generated per second. 
You will mostly observe the hash rate of your mining device in our statistics graphs. 

There is a difference between a nominal hash rate shown in the manual of your mining device and an effective hash rate shown in our system. It is important for you to understand the difference between these two.

Nominal Hash Rate
The nominal hash rate of 1 Gh/s means that your device is capable of generating 1 billion hashes per second - no matter if they match any criteria.

Effective Hash Rate
The effective hash rate is a hash rate calculated from hashes submitted by your device to your pool. Only a small portion of generated hashes by your devices get sent. They must fit certain criteria assigned by the pool (see: Shares).

Most of the times, the effective hash rate will be somewhat lower than the nominal hash rate.

Your effective hash rate depends on the luck of your mining device and the quality (stability) of your connection to the pool server. If you have experienced connection issues, then your effective hash rate will be lower than the nominal hash rate in that period of time.

Occasionally, you can be more lucky and find more valid hashes than usual. That is what gives you a slightly higher effective hash rate.

Share - Proof of Work

Share is a unit which pool uses for computing mining work.

When a miner connects to the pool it receives computational task to be solved - it computes hash values with certain properties (they must be lower than the limit derived from difficulty). Hashes satisfying the requirements are sent back to the pool and are used as a proof of miner's work. The quantity of miner's work is registered in units called shares. If a hash (proof of work) with difficulty XX is submitted by a miner then XX shares is counted by the pool.

To put it as simple as it could be:

1 share = 1 proof of work on difficulty 1
5 shares = 1 proof of work on difficulty 5 (or 5 proofs of work on difficulty 1)
100 shares = 10 proofs of work on difficulty 10 (you can see the pattern)

The "mismatched block contents" message is 100% common among various versions of BFGminer. 
It's simply a print out display and does not effect hashrate. Most pools do not support the sending of block contents, and the request by BFGMiner for this information is ignored, which results in the message. 
The message can safely be ignored without any negative effect.

"Block contents" option by BFGminer is strictly an option for pools to tell the miner all the transactions on the network being included in that block and that can be 0-10MB of data sent each minute per connection. This can overload pools and this is why most do not support this, further: bfgminer is the only one that requests that data, against the standard of other mining software.

We kill connections to MRR servers when there are no available pool choices to mine at. Thus we recommend a similar localized pool setting your config file:
 
1. Closest MRR server
2. 2nd Closest MRR server
3. Your favorite pool (not MRR server)

This gives you the greatest amount of redundancy (you can add as many or all of our servers like this). Also, if the renter's pool ultimately fails, your rig will fail over to pool #3 (your favorite pool) and begin hashing on your behalf. This is done intentionally to provide you with no downtime in the event you choose to compensate your renter.  Our refund system accurately tracks and calculates shares if it becomes necessary.

Please note that we will never charge a refund or dock RPI score against your rig for issues stemming from a renter's pool or difficulty choices. We recommend leaving a message for the renter in the "Communications" tab notifying them that you suspect a pool issue.

Should your renter open a ticket requesting a refund, we will express to them that there is a problem with their pool and guide them to correcting the issue.

If you are ever charged a refund against a rental you do not agree with, simply open a ticket and request our review. While we continuously work to provide the most reliable service we can, we will always remain prepared to consider another review to ensure everyone's satisfaction.

My mining rig isn't connecting to MiningRigRentals.com's server!

Please allow up to 2-3 minutes for your connection to complete and begin reporting.
Please double check the configuration suggestions, it's possible you are using the wrong client name or password.
You need at least one working pool defined in MRR's rig detail page in order to connect to MRR's stratums.

Make sure you're not using a mining client that has the "reconnect fix" added (currently only special versions of cgminer). Also check your config file for this line: no-client-reconnect : true, This line needs to be set to false.

If your rig is rented out and loses it's connection and cannot reconnect, ask your renter to double check that they setup at least 2 pools. If they are only using one and that pool fails, there will be no failovers and the connection will be lost. With no available pools at MRR, your rig will failover to your local config in search of work.

We appreciate you listing your rig with MRR. Please note that we will never charge a refund or dock RPI score against your rig for issues stemming from a renter's pool or difficulty choices. We recommend leaving a message for the renter in the "Communications" tab notifying them that you suspect a pool issue.

 

xnonce is a stratum command that allows miners to receive xnonce1 updates without having to reconnect.
This was developed after the stratum protocol was widely in use, so support for it is sporadic in miners and pools.

If your pool uses xnonce, and a rig has specified it has xnonce, then MRR will send the command, and it will work with the pool.
If your pool does not use xnonce, there is nothing to worry about with the additional command. 
If a rig has not specified it supports xnonce, you may inquire the rig owner to enable it if there is a rental; if you desire, though a rig owner may often not need to enable it normally or even have the miner or software support for it.

bfgminer supports the xnonce via software, and possibly cgminer versions.

This is done by appending #xnsub to the pool URL you are connecting to, this applies to rig owners only: To enable it with MRR, append #xnsub to the end of the proxy URL you are using. Note that renters or owners can not append this to the MRR pool interface.
stratum+tcp://eu-de01.miningrigrentals.com:3333/#skipcbcheck#xnsub Is an example. We also suggest #skipcbcheck if you are using bfgminer as well.

My renter wants to pay me directly for any reason or wants to pay for extended time,

We don't recommend this. Once you extend the renter's time we cannot credit the time or funds back to your account. If you choose to do this, you must assume the risk that the renter may never send the additional funds. The time extension is meant to allow compensation for rig down time.
We also don't allow direct payments via the rental Communication interface for security reasons. Consider having MiningRigRentals support to do any such exchanges. Open a ticket with us, and have the renter do the same explaining the reason or what is going on.

Regardless, it's best to ignore requests in which the renter says they are going to pay you if you are unsure.

 

If you do not know what RPI is, please read our Faq about RPI Here.

In general, rentals in which there are issues relating to the operation of the rig may cause a reduction in your rigs RPI. Potential reductions are determined during the review process.
We review a rental in several ways, a renter makes a ticket request due to some issue with your rig. We also review all underperforming rentals after they end.

During the review process, issues relating to the operation of your rig would be the cause of any RPI reduction, these include being offline, incorrect advertised hash rate vs what is seen on a consistent period.
The purpose of the RPI system is to give the renter a way of determining how successful rentals with your rig have been in the recent past. The more rentals you have that are successful, the better your rating.

You can view your rigs rental history to view any rentals in which there was a negative RPI impact. These would show up highlighted as red, though rentals that are still in the review process are still counted as good until it could be determined there was an issue with your rig. If you are unsure of the reason behind any reduction of your RPI, please list any recent rentals in which this occurred, and open a ticket with support so that we can investigate and inform you of the reason. As well, we are open to re-reviews for any RPI related issues within a two week period, as important data may be pruned from our system.

In order to improve your RPI, you should investigate the cause of the reduced average hash rate during your rentals. Again, you may ask us as to the reason behind the reduction. In most cases, we are understanding regarding unforeseen offline events, let us know what occurred and we may take off any negative RPI mark. If the cause is the hash rate, please adjust your advertised hash rate to match what your recent rentals in which there were no renter pool issues. If your rig is consistently having rentals at lower hash rates and even at your own pool, we may intervene and adjust your hash rate to match so that renters do not get low hash.

You may delete an unwanted or unused rig at any time. To do this, navigate to your "My Rigs" page.
Locate the rig you want to delete and click on the red delete button.

This marks the rig as deleted in our system. It remains for logging information, however,
Please note that once you delete the rig, all connections to our proxy for that rig will be disabled.

This means you should remove this rig from your miners configuration.
Please do not leave a miner to endless try to connect to a deleted rig, we observe 100,000 connections an hour from individuals with deleted rigs, this causes undue stress on our systems.

The client has no access to your machine at all. Everything is done through a pool interface. No one, not even MRR itself, can change any settings or clocking of your hardware.

The only thing that can change is the pool being mined, MRR's servers tell your rig to connect to your renters pool when you are rented, as this allows renters to mine at their pool with your rig once they have paid.


 

When you're mining crypto-currency you have to look at the long-term profitability, not only the short term profitability.
There are two big cases for successful mining by renting hashing power:

  1. For fun. Maybe you like to mine, or want to test the waters to see what crypto currency is all about.
  2. For Profit. You will have to monitor Bitcoin prices, as well as new altcoins. You will need to keep track of profitability charts for new altcoins, look for future and current opportunities in altcoin mining. Mine when difficulty is low and sell when the price is high. This enables you to successfully navigate profitability. Holding the coins for long periods can also have benefits for long term investment, you could potentially even use these coins to purchase goods or items in the future. We have a list of suggested pools that you can use for mining many different altcoins for your rentals here at MiningRigRentals. You can find these in the Pools & Services section.

This is a list of sites that can give you information about profitability in the altcoin scene.

This message "YOU WERE NOT CHARGED" "Rental Did Not Start" appearing on your rental page after renting means the following:
As the message implies, there was no charge for the rental you attempted. As there was no charge, the rental can not start for you.

The cause of this message is simply, some one else rented the rig you chose before you hit pay. A rig can only be rented out to one person at a time, and the first one to rent it gets the valid rental. This is usually the result of a situation when there are a high volume of rentals, or the rig is popular.
It can also be caused by clicking the pay button more then once, leading to one of your own rental attempts winning out over the other. In this case, simply look at your My rentals page and search for the valid rental.
You can verify that you were not charged for the invalid unpaid rental, by looking at your transaction history, it will not be there. 

If the message was the result of two renters renting at the same time, you would have to try renting a different rig since the one that was attempted to be rented was already rented.

Also there is the infrequent case to where you do not have enough valid funds to pay for the rental, it would not start if you do not have enough valid funds in your account at the instant the system marks the rig as rented.

The worker difficulty may be too low or too high. Adjust the worker difficulty to obtain the advertised hash rate.
If this does not seem to apply, try browsing other similar questions.


If you are experiencing lower than expected hashrate, it's entirely possible that your pool choice is not assigning the proper worker difficulty setting for the rig you have rented.
You can find the current worker setting assigned by your pool by clicking on the "Workers" tab of the rental.


Please check the rental mining rig's description and always use the rig owner's recommended settings. However, if the optimal setting is not provided then we suggest the following:

Scrypt coins:
 

  • 250KH and below: 16
  • 250+: 32
  • 500+: 64
  • 1000+: 128
  • 2000+: 256
  • 3000+: 384
  • 4000+: 512

SHA-256 coins:

  • 250MH and below: 1
  • 500MH+: 2
  • 1GH+: 4
  • 10GH+: 16
  • 30GH+: 32
  • 60GH+: 64
  • 125GH+: 128
  • 250GH+: 256
  • 500GH+: 512

You can also check for the Suggested difficulty set for your information by the rig owner, we reccomend that you follow those suggestions when available.

If your pool does not provide the option to assign worker difficulty per worker then we suggest checking for a pool that does.
Ultimately this is your responsibility and cannot be changed by the Rig owner who cannot be held liable for a refund.

We do not currently have a way for you to purchase additional time on a rental. It's possible we may add this feature in the future if there is sufficient desire from our users for the feature. 
The best way to get more time on a rig that you like, is to purchase another rental on the same rig when your current one is over, and choose a longer rental length. If the rig does not offer a longer length, you can of course, ask your rig owner to increase it so that you may rent their rig longer the next time.

We do not allow transactions through the communication window for extra time, such transactions can be suspect and the rig owner may not deliver, we would be unable to recover any lost funds.

We offer a referral program where you can refer your friends to our website. It allows you to help us grow our service, as well as helping you earn a bit more bitcoin.
There is no requirements other than having a valid account here at MiningRigRentals, and abiding by our Terms of Service.

Please check your account details page for the referral link. Use this link to recommend MiningRigRentals.com to your mining friends.
We will pay you a commission from each transaction that occurs from your referral.

We do reserve the right to cancel any referrals, individually or as a whole if we detect abuse.
Please do not abuse the referral program, this usually means do not sneak your link into something in which the user signing up is unaware of your referral. This includes automated or hidden links.

Commissions are paid out after each transaction fully completes. We offer .1% of the total transaction.
This applies to both renters and rig owners that are referred to MRR using your referral link.
If you refer a renter and a rig owner and the renter leases the rig owner's rig then you will receive a total of .2% commission for that transaction.
There is no ceiling on your earnings potential. You will continue to earn .1% on every transaction the referred account fully completes.

Absolutely! Make sure to contact us directly by using our support center.
Alternativly, you may browse our other contact methods if those are appropriate from our contact page.

 

You may have noticed the "Suggested Difficulty" setting on your rig setup page.
We Strongly recommend you set this option.

If you don't know the proper option for this, please click on the Workers tab under Rig Details section of your rig setup page.
Once there, check for your miners connections to your pool, note what the average value of the Difficulty is when there is a stable connection to your pool.
This represents the best value for Suggested Difficulty, assuming you have your rig setup and connected to your pool through our service which is advised you do.

Some Ethereum/other pools mining the algorithm dagger-hashimoto may allow you to use stratum to connect to them.
You may already be using this software on your miners to connect to these pools. This guide explains how to connect your rig to MRR with stratum support.
It's also useful for renters as well to help explain how our dagger-hashimoto / ethereum sections work.

We used to suggest using qtminer, but it's lack of feature support makes it the least choice currently. If possible, use a stratum proxy, or possibly ethminer-genoil.

Stratum may provide a small performance gain, we support stratum(1*)(2*) for Ethereum / dagger-hashimoto.

  • There are currently two diffrent versions of the stratum protocol for ethereum/dagger-hashimoto.
  • We support incoming connections from both of these versions on port 3344.
  • We support outgoing connections to pools for both of these versions.
     
  • (1) The first stratum version was first developed by the listed stratum proxy software; dwarfpool proxy/eth-proxy.
    It sends Json requests and responses using methods prefixed by "eth_" like "eth_submitLogin". Responses to eth_getWork contain "result".
     
  • (2) There is a second stratum version. It's seems to be gaining support in software like ethminer-genoil possibly newer qtminer?.
    It's like regular stratum, but it uses modifications to the protocol for the hash values required for dagger-hashimoto in work requests and share submits.
    It uses Json methods like "mining.submit", responses can be "mining.notify" It may also send eth_submithashrate method.
     
  • We currently support *all* pools that "appear" to be running this second version of stratum. coinmine.pl and miningpoolhub.com were used as prime examples of support.
    Support for all pools using stratum version (2) is enabled by testing user supplied pools for which version they support, the list is kept up to date for new connections.
    Our pool test for version support is in beta, as noted we used the two popular pools as examples how to test for stratum version (2) support.
     
  • Miners running version (1) and (2) of stratum support connections to both versions of pools, the requests are re-written in transport to work with any version of stratum pool.
     
  • We're considering the possibility of enabling getwork miners, like official ethminer to mine at stratum pools, and conversely, stratum miners to mine at stratum pools
    Check back in the future for more updates on this feature.


This post outlines generic settings you need in order to configure your Ethereum getwork to stratum proxy to connect to your MiningRigRentals Rig.

qtminer support:

  • qtminer.exe -u cncr04s.25624 -s ap-01.miningrigrentals.com:3344 -G --cl-global-work 16384

Please note as above, newer versions of qtminer may attempt version 2 of stratum.

All our testing was done with qtminer compiled on 10/20/2015
This version should work with our service using stratum version 1.


Claymore's Dual miner:

You need to set your WALLET and your WORKER to your MRR workername
Set ALLPOOLS to 1
And your POOL to your chosen MRR pool address.

Stratum proxy support.


Download the stratum proxy here if you don't have it.

Examples of command the line for miners using ethminer / getwork:

  •    ethminer.exe -G -F http://127.0.0.1:8088/rig1

You connect your getwork miner to the stratum proxy, as indicated above.

Stratum proxy configuration:

# Select Ethereum ETH or Expanse EXP
COIN = "ETH"

# Host and port for your ethminer to connect to
HOST = "0.0.0.0"
PORT = 8088

# Coin address(Valid ethereum address) It's unused at MRR, but PROXY REQUIRES IT
WALLET = "0x678f03a93a1218601a5af809f7fe8653335a3dbd"

ENABLE_WORKER_ID = False
MONITORING = True
#login information
MONITORING_EMAIL = "accountname.rigmumber" //cncr04s.26503 as example

# Main connection to MRR
POOL_HOST = "us-central01.miningrigrentals.com" //A server you choose
POOL_PORT = 3344

# Failover connection
POOL_FAILOVER_ENABLE = True
POOL_HOST_FAILOVER = "us-west01.miningrigrentals.com" //Second server you choose, next closest
POOL_PORT_FAILOVER = 3344

# Proxy version 0.0.5 and above
# Failover pool
POOL_FAILOVER_ENABLE = True

POOL_HOST_FAILOVER1 = "us-east01.miningrigrentals.com"
POOL_PORT_FAILOVER1 = 3344

POOL_HOST_FAILOVER2 = "us-west01.miningrigrentals.com"
POOL_PORT_FAILOVER2 = 3344

POOL_HOST_FAILOVER3 = "eu-01.miningrigrentals.com"
POOL_PORT_FAILOVER3 = 3344

 

There may be additional proxy software, however most should have a config somewhat logically similar to this.
Let us know if you get any other proxies working and provide us with a sample config to paste here. 
0.001 btc reward for a proper example of a config for another stratum proxy not listed here, contact support via ticket, refer the support personel to this faq..

Some miners/software will need additional setup procedure in order to operate properly with MiningRigRentals.
Normal miner software will usually work with our service when connecting to the indicated server URL and port, and of course your rig's worker name.
Some software will not follow the commands sent by our stratum proxy service, an example would be "Minera." 

In order to setup your rig on a software that will not follow the "client.reconnect" command sent by our service, you will need to first have a separate software that will do this.
The software does not need hardware to work, this can be done on your home computer, you would connect it as indicated; and in the console it should show your rigs port value on the server you connected to. 
The message would look like " Stratum requested reconnect to us-east01.miningrigrentals.com:port " with 'port' being your port number on that server. 
You would use that value in order to connect to your MRR rig, instead of the port 3333. We suggest using BFGminer in order to preform this easy task. 

As a note, you will need to connect at least once to your "assigned" port every 48 hours on the dot in order to keep the port active, or else the system will think the rig is away and will reassign the port to some one else. 
If this does happen, you will need to follow the previous instructions again to get the new port. 
If you keep it connected all the time there should be no additional action on your part as the system will know the rig is still there. 

Alternatively if this is not working for you, we can assign a permanent port for you on the server of your choice. 
Please let us know if the instructions have not worked for you and we can assign this permanent port, as there are only a limited number of ports we can give out for this purpose; it is important to at least attempt the instructions first. 

We do support Older or Legacy bitcoin/sha256 miner hardware.
In order to support this you must install a stratum proxy.

Stratum mining proxy allows mining software supporting the old Getwork protocol to use modern Stratum mining protocol provided by our service.

Installation on Windows
Download official Windows binaries (EXE) from here
Open downloaded file. It will open console window using default settings (proxy connects to Slush's pool interface)
 

Installation on Linux (Ubuntu / Debian)

  • Download TGZ file from here
  • Open your terminal application (ctrl + alt + T on Ubuntu) and get to directory containing file you have just downloaded (eg. cd ~/Downloads)
  • Enter following commands one by one:
    sudo apt-get install python-dev libssl-dev
    
    tar xf slush0-stratum-mining-proxy*.tar.gz
    
    cd slush0-stratum-mining-proxy*
    
    sudo python setup.py install
  • Now you can start the proxy by typing ./mining_proxy.py in the terminal window (provided you are in directory where you have installed your copy of the proxy)

 

Installation on Linux Using Git (Advanced)

This is advanced option for experienced users, but it gives you the easiest way for updating the proxy.

git clone git://github.com/slush0/stratum-mining-proxy.git

cd stratum-mining-proxy

sudo su -

# Development package of Python is necessary
sudo apt-get install python-dev

# Upgrade setuptools package
sudo python distribute_setup.py

# Install required dependencies (namely Twisted and Stratum libraries)
sudo python setup.py develop

# Start the proxy
./mining_proxy.py

# Update the proxy
git pull

Compiling Midstate C Extension

For some really big operations using getwork interface of this proxy, you'll find useful "midstatec" C extension, which significantly speeds up midstate calculations (plain python implementation is very slow).

To enable this extension, just type make in midstatec subdirectory. Proxy will auto-detect compiled extension on next startup.

We attempt to support as many miner software as possible here at MiningRigRentals.
Mining software for stratum based algorithms compatible with our service need to have the following features:

  • Support Stratum communication protocol
  • Support client.reconnect (not needed for qtminer)
  • Provide option to configure connection/pool address

Mining software for getwork based algorithms compatible with our service need to have the following features:

  • Provide option to configure connection/pool address

Mining software that have these basic features are likely to be compatible with our service.
Most mining hardware comes loaded with it's own miner version, most are cgminer or bfgminer. Most of the asics should work here without issue.

Here is a list of known miner software that are generally compatible with our service:

  • bfgminer
  • cgminer
  • sgminer
  • ccminer
  • ​cudaminer
  • minerd (original cpuminer)
  • cpuminer (new versions with multi-algo support)
  • vertminer
  • qtminer
  • ethminer genoil
  • equihashminer

Here is a list of software compatible for getwork based algorithms

  • Offical ethminer
  • Forks of ethminer
  • ethminer genoil

Here is a list of some miner software not supported:

  • minera
  • stratehm-stratum-proxy (Does not work for all renters!) (if you are not available for rent then this software is fine for your own use)
  • claymore dual miner

With our new ethereum / dagger-hashimoto support, we often see incompatible cgminer attempting to mine to a getwork / ethereum pool. This is unsupported, please use offical ethminer, or an offical fork.

​​Other miners not on this list are, either not generally used here or are most likley not compatible. If you know of one on this list that works, or does not please let us know.
We don't offically support connections from other outside cloud hashing services, but they may work if you follow other guide in this section.

If your rig, such as an asic device can only start work on a pool if the difficulty is above some amount we can set a minimum difficulty.
This is useful on pools that support variable difficulty. 
If you know what difficulty value that your rigs start mining at (meaning devices don't mine at lower difficulties), please open a support ticket and let us know that you want to change the minimum difficulty to that value.

Once set, a minimum difficulty is sent to your rig from any pool that sends a difficulty of lower than that value, however please note that share calculations are based on the value that is sent by the pool, even if it is lower.
This may result in lower hashrates until the pool difficulty is set to a correct value. If we see that a request was made to change minimum difficulty and completed by us under faith that the device does not mine at lower value and see rentals not working after the fact, by either lower hashrate the expected for the pool difficulty or other failures, we may remove the minimum difficulty and assess any refund due to the renter.

We also have the sole discretion to remove or add a miniumm difficulty to any rig in order to help the rig operate, or refuse any request to update the difficulty. Minimum difficulty may not help in all cases, and can also hinder rig performance.

Supported Algorithms

Naturally, our list of supported algorithms is indicated on the left, under Rigs, as well as through the upper dropdown menu.
We change this often, perhaps a few times a year. We may also have old algorithms in our system, but hidden, since they are unused by anyone anymore.

Core Algorithms

  • Sha256
  • Scrypt
  • X11
  • Dagger-Hashimoto 

Fringe Algorithms

  • Libry
  • Lyra2rev2
  • Blake256-14
  • Neoscrypt
  • Yescrypt
  • Quark
  • Lyra2RE
  • Equihash

 

List of Unsupported Algorithms

  • Cryptonote/CryptoNight *(2,3)(A)

Why are these unsupported?

Unfortunately, due to several factors, we may not currently support an algorithm for mining here at MiningRigRentals. The possible reasons can include:

  1. Technical Inadequacies of the Algorithm.
  2. Technical Inadequacies of the Available Mining software.
  3. Mining software/developers not supporting our system/service.
  4. Lack of available community support for the algorithm.
  5. Does not provide benefit to us our our users.

(A) What can I do to help?

For Cryptonote/CryptoNight, mining software would need to be developed to support our system, utilizing stratum from compatible sha256/scrypt software, which includes client.reconnect (our service requires this to work).
This software would be required to mine at MRR. If you can provide technical support on this, please let us know via our ticket system.

 

 

We try to provide excellent professional support to our users. We have integrated a ticket system into our website for you to use for getting help with your rig or rental.
You can reach our Ticket Center Here. Please overview the information on the top of the ticket page for optimal solution of your issue. 

Support availability: We try to answer tickets as soon as possible. However we operate on a EST/New York schedule, meaning support between 10pm and 8am may not be available
We attempt to provide active support hours between 8am and 10pm (EST) as indicated. Saturday and Sunday may have restricted hours.
It is also possible we are offering support beyond those hours at our personal discretion or are unavailable for any period, hours are not guaranteed due to our small staff.
Regardless we make an attempt to answer tickets within 12 hours.

Also, please open ticket as soon as possible after the end of rental if there is an issue.
Rental holding period is 12 hours, beyond that we are unable to offer refunds for rentals which have cleared the holding period.

Please open a ticket directly from our ticket center if you require help on multiple rentals or rigs, please list them in the body of your ticket. 
Direct html links are most appreciated, but not required.

You will also have the ability to open a ticket directly from your rental view page. This ensures we know which rental you are referring to.
Please do not open a very large number of these direct tickets from your rentals, please consider opening a single ticket outlined above, failure to do so may incur a support charge.

We offer support in English. If you can't write English, we would suggest you write directly in your language, as we would have more experiance translating the message then you would translating it to English.

It's also important to note that we provide support free of charge, please consider a donation if you are happy with the service you received.
Thanks.

We Value your opinion. We would like to hear from you regarding any issue you feel appropriate to mention to us, but more importantly regarding the operation of our service as a whole.
We would like to know if there are any issues you feel we need to address, or have overlooked. 

You can let us know via our ticket center, or on IRC. You can find our contact information via the left dropdown menu.

We would also like to improve this new help center. Let us know if we should add something to it. This includes Faq type information, information about bitcoin, altcoins or mining.
We would also be interested in any good tutorials regarding mining, pool setup or how to use our services while we work to improve this section.
If you provide us with an excellently written tutorial or video and we put it up in our Help Center, we may provide a small reward (0.01 BTC) for doing so.

There are a few methods of contact for getting a hold of us. 

First, try out our ticket system for issues related to rigs/rentals or refunds. We can only process refunds through our ticket system.

If you don't have an account or want other method,

You can find us idling on IRC chat on freenode at #miningrigrentals
MRR Owners: cncr04s, merx, napalm|mrr

Email: support@miningrigrentals.com

Our Bitcointalk thread MiningRigRentals

Twitter: @miningrigrental

Facebook: miningrigrentals

We appreciate your interest in our service,

If you rent with us or have your rig available for rent you may notice the very little fee involved with our service. In fact, renters do not pay any fee at all, nor is there a fee associated with setting up a rig for use.
We only take a small fee from the rig owner when their rig has been rented. 

Other services charge both renter and owner more fees, we value your service so much we keep our fees low or in some cases none as outlined.

To better enable more functionality, upkeep, and general support functions we would request you to consider donating in order to help keep our service going strong.

If you decide you may want to donate, please feel free to create a ticket in our support page, let us know that you want to donate and any amount you choose from your balance.
Alternatively you may deposit any amount at this Bitcoin address 1DTXkfBgQAh89TFCYRa8ddHba1jAf4yTzf

​Thank you for your valued time and business.