How many 295's can I have in one system?

[Rubycon]

I have six PCI-E slots - 5 available as 16X. Will four 295's work for 8way SLI or at least encoding/crunching?

 

[Creig]

Did you just win tonight's lotto?


It isn't just a matter of having the slots, it's having enough room. Each GTX 295 takes up two slots worth of space. So you would need a motherboard with slots spaced out far enough for 8 regular cards cards. I'm not sure such a beast exists.

 

[Keysplayr]

Encoding, crunching.... yes. 8 way SLI... no.

 

[lopri]

You must have missed this.

 

[bunnyfubbles]

Originally posted by: Creig
Did you just win tonight's lotto?


It isn't just a matter of having the slots, it's having enough room. Each GTX 295 takes up two slots worth of space. So you would need a motherboard with slots spaced out far enough for 8 regular cards cards. I'm not sure such a beast exists.

There are actually several, most of them are AMD boards though, meant for quad crossfire. However there are a few intel ones out there.

http://www.asrock.com/mb/overv...58%20SuperComputer&s=n

ASRock even targets that motherboard specifically for use as a CUDA machine

 

[Rubycon]

Originally posted by: Creig
Did you just win tonight's lotto?


It isn't just a matter of having the slots, it's having enough room. Each GTX 295 takes up two slots worth of space. So you would need a motherboard with slots spaced out far enough for 8 regular cards cards. I'm not sure such a beast exists.

295 is dual gpu so two is four way SLI and so on...

I have an EVGA classified (enroute) and Asus P6T6 Workstation Revolution to try it with.

 

[happy medium]

So you want to do something like this?

http://www.fudzilla.com/index....iew&id=11298&Itemid=37

 

[Creig]

Dang, that atlasfolding system is impressive. I haven't been looking at motherboards lately so hadn't been keeping up with times, I guess. The last time I checked the best an ATX board could do was 3 double-width PCI-E slots and one single-width.

 

[alcoholbob]

I think the SLI bridge only supports 3 cards so I assume you can put in 3 x 295s, which would be equivalent to 6-way 275s.

You better have Skulltrail i7 overclocked to 4+ to properly balance the SLI load for that many cards...

 

[Rubycon]

Originally posted by: happy medium
So you want to do something like this?

http://www.fudzilla.com/index....iew&id=11298&Itemid=37

Yes with a RAID controller where the physix card is. Not for gaming so CPU should not matter but a 4GHz i7 / 24GB should suffice.

 

[happy medium]

Nice good luck:thumbsup: