Post
Topic
Board Beginners & Help
Are the CPU, Memory and Power Supply on this rig good enough for 3 x HD 5970?
by
NISMOkwim
on 23/06/2011, 22:49:00 UTC
AMD's website it calls for at least 1GB RAM to run the Radeon HD 5970, but since I am going to be running 3 of them, won't I need more than 1GB RAM? Will I need a better CPU?
Also, AMD calls for at least a 650Watt power supply, and calls for a 850Watt power supply if you plan to use ATI CrossFireX™ technology in dual mode.

Here's the System Requirements from their website: (http://tinyurl.com/27vndvz)

  • PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
  • 650 Watt or greater power supply one 75W 6-pin and one 150W 8-pin PCI Express® power connectors recommended (850 Watt with two 75W 6-pin and two 150W 8-pin connectors for ATI CrossFireX™ technology in dual mode)
  • Certified power supplies are recommended.  Refer to http://support.amd.com/us/certified/power-supplies/Pages/listing.aspx for a list of certified products
  • Minimum 1GB of system memory
  • Installation software requires CD-ROM drive
  • DVD playback requires DVD drive
  • Blu-ray™ playback requires Blu-ray drive
  • For an ATI CrossFireX™ system, a second ATI Radeon™ HD 5970 graphics card, an ATI CrossFireX Ready motherboard and one ATI CrossFireX Bridge Interconnect cable per graphics card (included) are required


Here is what I have in the setup currently:

ChassisAPEX PC-389-C Black Steel ATX Mid Tower$19.99http://tinyurl.com/n9x9ku
Power SupplyAPEVIA 650W ATX12V - Crossfire Ready$54.99http://tinyurl.com/3vq6r5k
MotherboardMSI 890FXA-GD70$175http://tinyurl.com/6y78afz
CPUAMD Sempron 130$29.99http://tinyurl.com/694lzzz
Memory1GB DDR3$11.99http://tinyurl.com/6b9a3su
Graphics card    3 * Radeon HD 5970$1,800 ($600 × 3)    http://tinyurl.com/62hxqpl
StorageWestern Digital 40gb Internal Hard Drive$10http://tinyurl.com/6838co4
TotalApproximate Mhashes 2011.1754$2,102 + s/h/t$1.082437 per Mhash



I'm concerned that the RAM/CPU aren't enough to handle 3 of the Radeon HD 5970's. And that they might need a bigger power supply. What do you guys think?