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Bitcoin mining ATI crossfire

What is the most cost effective GPU mining rig?  October 23, 2013 – 12:12

Here are some guidelines to choosing hardware for an effective GPU rig.

CPU: The cheapest you can find. Low-end AMD CPUs are good for this.

RAM: The cheapest you can find.

ODD: Unnecessary, install the OS from a USB flash drive.

HDD: Unnecessary, use a USB flash drive, the cheapest you can find which can hold the OS.

GPU: Basically any ATI series 5XXX+ is suitable. has a list of the hashrate to expect from each. You need to choose one based on the price in which you can get it, the hashrate, and the power (which has implications for electricity costs, and the need for proper PSU and cooling). You need to consider the whole system - using multiple cheap cards can increase the cost of the peripherals.

PSU: Needs to be a good brand and have sufficient power for all the hardware, with some to spare. A 80+ gold PSU is more expensive but could be a good idea, especially if you pay for power. If you're using many graphics cards you can even use multiple PSUs.

Case: If you're using a standard case, it can be cheap but it should have sufficient room and cooling for the cards. Bottom and side fans can help. But the most effective is to use a custom case or no case at all and just custom mounting for the cards.

Motherboard: Needs to be compatible with the CPU and RAM, and depends on the number of cards and the case. If you use a standard case you need PCIe x16 slots with enough spacing between them, and a motherboard with more than 2 suitable slots can be expensive. With a custom case you can use every PCIe slot, including x1, with extender cables - even cheap motherboards have about 5. The available bandwidth for the slots doesn't matter. Other than that there are no special requirements.

Source: bitcoin.stackexchange.com

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  • Running multiple Graphics Cards. How many watts will I need?
    Jun 18, 2013 by Ben | Posted in Other - Hardware

    I'm interested in doing some Cryptocurancy mining with Radeon GPUs.

    If I have 4: Sapphire ATI Radeon 5830 1G GDDR5 how many watts for a PSU will I need to power them?

    The recomended is 500 Watts …ar as I can tell there is no 2000 watt power supplys on the market but feel free to prove me wrong.

    What would be the minimum needed for a Computer dedicated to Bitcoin/Litecoin mining?

    Thanks :)

    • I'm guessing this is a Bitcoin mining rig. Realistically a 1200 watt PSU would be the minimum for this rig, if you plan on running it full tilt 24/7, a 1500 watt until would give you more headroom and run cooler to boot.

  • Suggestions on building a 2560 X 1600 Gaming Rig(Part-time Efficient Bit Coin Miner)? Value Price?
    Apr 21, 2011 by lawgic | Posted in Desktops

    ^^
    Price of rig shouldn't include 2560 X 1600 monitor (dell or hp).

    I was thinking of a very good(practical, value for money) priced gaming rig for a 25x16 reso.

    1.CPU - i5 3ghz(or higher) …ello kitty logos for all i care) as long as its efficient(cooling,etc)
    8.Cooling - ? water cooled vs fans, again value vs effiency.

    9.Did i forget anything else?

    Thanks! I need your help :)

    • My last 5 customer builds all are around $1,000 USD...
      build 1:
      Microsoft Windows 7 Ultimate 64-bit
      Main Board - MSI 890FXA-GD70
      CPU - AMD Phenom II X6 1090T Black Edition (With Arctic Silver 5 …w F3-16000CL9D-4GBRM (2 X 2gb DDR3)
      1090T x6 Black Edition
      5870 Sapphire GDDR5 1gig video card
      Crucial C300 64gb SSD (boot drive)
      Corsair 650w psu.
      other sata HD's installed for backups.