Quad HD 7970 Bitcoin Miner - PSU Req.? - page 3.

bowen151

hero member

Activity: 658

Merit: 500

Caveat Emptor

Do you really need a case? Just buy a test bench if your starting from scratch (also will mean less airflow problems if you go for an open air solutionn:

http://www.highspeedpc.com/Merchant2/merchant.mv?Screen=CTGY&Category_Code=TopDeckXL

If you do want a box try the coolermaster haf x, its giant and should have enough slots for what you want.

If you're set on using the p8z77 you could try and use a few risers to fit everything in, but that would mean zipties or another method like that for secureing the cards.

try searching for quad SLI or quad xfire motherboards to see if you find any you like:

http://www.ebay.co.uk/itm/Gigabyte-GA-Z77X-UP7-1-0-motherboard-extended-ATX-LGA1155-Socket-Z77-/380568028024?pt=UK_Computing_LaptopMotherboards_CPUs_CA&hash=item589b9f4378&_uhb=1

There's lots of them out there and if you need any more help jsut ask in here, theres loads of people to draw info from

If my post helped you at all feel free to donate to my BTC address below Wink

QuiveringGibbage

hero member

Activity: 617

Merit: 543

http://idontALT.com

Cheers for the info!! I'm going to get the AX1200i. Rock solid reviews and should do the job.

Someone on another forum also pointed out the ASUS P8Z77-V MB I picked out can't fit 4 7970s on it physically and the Fractal R4 case only has 7 slots. 4 x 7970s will need 8 slots. Silly me!!

Back to the drawing board...
QG.

-ck

legendary

Activity: 4088

Merit: 1631

Ruu \o/

My 4x7970 rig had a 1250W OCZ Gold PSU. It uses ~1150 at the wall when maxed out hot fans high overclocked and no real power saving option is in use. Bear in mind it had a couple of hard drives and the case has lots of fans too.

SAC

sr. member

Activity: 322

Merit: 250

Quote from: QuiveringGibbage on February 24, 2013, 06:20:43 PM

Hi,

I'm building a Bitcoin miner and plan to add 3 more graphics cards once I get it up and running. So that's 4 x 7970 GHz Edition cards and I don't think the 1000W PSU I picked out is going to be enough. What say you?

$482.00 Gigabyte Radeon HD 7970 – 3GB GDDR5 – (1100MHz, 6000MHz) Ghz Edition GV-R797TO-3GD
$339.00 Intel Core i7 3770K Quad Core CPU
$312.00 Antec 1000W HCP Platinum Series PSU
$207.00 ASUS P8Z77-V Mainboard
$163.00 Fractal Design Define R4 USB3.0 Mid Tower Case Titanium
$107.00 Corsair 16GB (2x8GB) DDR3 1600MHz CL10 LP Vengeance Unbuffered
$84.00 Intel 330s/60GB/SATA3/R 500MBs,W 450MBs/25nm/3.5"Kit

Total $1,694.00 (plus 3 x $482.00 Radeon HD 7970 in future). No current plans to over clock, but might do I future. My alternative was to put a Corsair 1200W AX-1200i $395... Better to be safe??

Note: Prices are in Australian $.

Kind regards,
QG
P.S: I know I might be a little late with the GPU mining, but I'm not doing this for the money. More for fun and research. Might use the PC for a gaming PC after a year or two.

You may want to PM the maintainer of the cgminer software ckovalis he had/has a 4x 7970 rig running so should be able to tell you the power needs also seen mention he was thinking of selling it off, he is fellow aussie so you may be able to work out deal with him and save some cash.

QuiveringGibbage

hero member

Activity: 617

Merit: 543

http://idontALT.com

Hi,

I'm building a Bitcoin miner and plan to add 3 more graphics cards once I get it up and running. So that's 4 x 7970 GHz Edition cards and I don't think the 1000W PSU I picked out is going to be enough. What say you?

$482.00 Gigabyte Radeon HD 7970 – 3GB GDDR5 – (1100MHz, 6000MHz) Ghz Edition GV-R797TO-3GD
$339.00 Intel Core i7 3770K Quad Core CPU
$312.00 Antec 1000W HCP Platinum Series PSU
$207.00 ASUS P8Z77-V Mainboard
$163.00 Fractal Design Define R4 USB3.0 Mid Tower Case Titanium
$107.00 Corsair 16GB (2x8GB) DDR3 1600MHz CL10 LP Vengeance Unbuffered
$84.00 Intel 330s/60GB/SATA3/R 500MBs,W 450MBs/25nm/3.5"Kit

Total $1,694.00 (plus 3 x $482.00 Radeon HD 7970 in future). No current plans to over clock, but might do I future. My alternative was to put a Corsair 1200W AX-1200i $395... Better to be safe??

Note: Prices are in Australian $.

Kind regards,
QG
P.S: I know I might be a little late with the GPU mining, but I'm not doing this for the money. More for fun and research. Might use the PC for a gaming PC after a year or two.

Topic: Quad HD 7970 Bitcoin Miner - PSU Req.? - page 3. (Read 8677 times)