Many GPU clients without SLI

Questions and comments regarding the GPU2 client running on a nVidia GPU that supports CUDA.

Many GPU clients without SLI

Postby Ahavi » Wed Aug 06, 2008 1:29 pm

I'm thinking of buying a motherboard (used) that has four PCI-E slots. Those support Crossfire. Can I put 4 8800GS in those slots (not Crossfire), and run one Nvidia client on each?
I fold with: 9800GX2, 8800 GS, 1,3GHz Athlon and 1,8GHz Athlon 64
I BOINC with: Q6600 2,4GHz and Athlon X2 2,2GHz
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Re: Many GPU clients without SLI

Postby bowman » Wed Aug 06, 2008 1:32 pm

SLI has nothing to do with CUDA, and enabling SLI will cause CUDA apps to only see the primary card.

Yes, it's not a problem to buy a non-SLI board for folding on multiple GPUs.
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Re: Many GPU clients without SLI

Postby Foxery » Wed Aug 06, 2008 2:02 pm

This should work. Just be mindful of the power supply requirements, and if these have 2-slot coolers, the 4th may not fit into a case.
Core2 Quad/Q9300, Radeon 3850/512MB (WinXP SP2)
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Re: Many GPU clients without SLI

Postby Ahavi » Wed Aug 06, 2008 7:57 pm

It is an AM2+ motherboard so I can also get a 12-core Shanghai when it comes out. Blimey the PPD, 4x 8800GS and three SMP clients. But this is just dream thinking I suppose, it is not like I know how much it will cost in the end (Ebay).
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Re: Many GPU clients without SLI

Postby jerryt74332 » Wed Aug 06, 2008 8:00 pm

K9A2 platinum works great
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Re: Many GPU clients without SLI

Postby bowman » Wed Aug 06, 2008 11:24 pm

12-core Shanghais are only for the new AMD LGA server sockets. 8-core will be for socket F I think.

AM2+ will only allow you to step up to Shanghai quad core (Deneb).
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Re: Many GPU clients without SLI

Postby Raziel » Thu Aug 07, 2008 2:20 am

jerryt74332 wrote:K9A2 platinum works great

I am going to build new folding machine these days. :)
K9A2 do have 4 PCI-E slots,however, I'm afraid the positoin of SATA will conflict with high end cards like 9800GX2/GTX280.
Do you have other suggestion? So far I only find couple boards have 3 PCI-E slots fits 9800GX2 x3 without problem.
Thank you~ :D
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Re: Many GPU clients without SLI

Postby a3ke » Thu Aug 07, 2008 10:41 am

Found no board were the sata ports ever conflicted with the GPU as positioning goes

Clear CMOS jumper and in the Htpc the fysical positioning of the HDD's yes , but sata ports , nah :)
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Re: Many GPU clients without SLI

Postby Ahavi » Thu Aug 07, 2008 12:52 pm

bowman wrote:12-core Shanghais are only for the new AMD LGA server sockets. 8-core will be for socket F I think.

AM2+ will only allow you to step up to Shanghai quad core (Deneb).

Are you sure about this? Hmm, I guess the 3GHz 45nm quad CPUs will do as well but an 8-core would be nice.
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Re: Many GPU clients without SLI

Postby Raziel » Thu Aug 07, 2008 4:43 pm

a3ke wrote:Found no board were the sata ports ever conflicted with the GPU as positioning goes

Clear CMOS jumper and in the Htpc the fysical positioning of the HDD's yes , but sata ports , nah :)

I mean the SATA ports with multiple HDD and cables plugged.
I think the SATA ports better turn 90 degree and place in the side of m/b instead of near the south bridge chipset if we have multiple 9800GX2 or some cards like that. :)
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Re: Many GPU clients without SLI

Postby Tigerbiten » Fri Aug 08, 2008 9:10 pm

I just used a 90 degree SATA connector on both my MoBo's where the vid cards overhang the SATA ports.
But I'm not sure that will work if you need to connect multiple SATA drives.

Luck ......... :D
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