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GTX 580 to GTX 580 SLI

Board looks to have pretty good spacing between the pcie slots, (always handy with sli). +1 for a 1000w psu, it'll give you enough overhead for overclocking of the cpu and gpu's.
 
Sgt Tackleberry said:
For a PSU a decent 850w would do the trick but I would say a 1000w psu would do it for sure.

Your mobo will be fine for sli 580's

May I ask why are you going 580 sli?. What res do you game at?.
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I am currently gaming on a single 23" monitor at 1080p. I want to get another 2 screens for a 3 monitor setup.

setter said:
Board looks to have pretty good spacing between the pcie slots, (always handy with sli). +1 for a 1000w psu, it'll give you enough overhead for overclocking of the cpu and gpu's.
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What about the sata ports...i think i might have a problem with another GTX 580 not being able to lock in its slot because of them.

Yeah, the i5 is overclocked to 4.4ghz.

The GTX 580 is also overclocked but i don't remember by how much.
 
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Most importantly, which version of the 580 do you have? 1.5gb or the 3gb?

Adding an extra 580 (1.5gb) won't really do anything if you are going above 1080, particularly if you plan on playing games like BF3. VRAM does not stack, two 1.5 cards doesn't equal 3gb of VRAM, you'll simply be adding greater processing power.
 
Or you could just sell the 580 keep your PSU dont spend money on a new one and get a 7950 to CF with another 7950 as they use allot less power
 
The mobo will be fine for SLI

I have 2 x GTX580s with the OCZ 1000watt PSU it has not missed a beat, i have also O/Cd the GPUs to 910 core 1820 shader 2200 memory. My CPU is also O/Cd to 4.5Ghz.

The OCZ 1000w is at a very competitive price, and offers great performance. I would definately recommend the PSU.
 
DennisColes said:
I've got the 1.5gb.

http://www.overclockers.co.uk/showproduct.php?prodid=GX-146-OK
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Therein lies your problem - 1.5gb VRAM is going to limit your ability to play at higher resolutions (2560x1440?), providing that you wanted to have your settings maxed out.

You can see for yourself if you use MSI afterburner on-screen display to track memory usage when playing BF3 on ultra, just at 1080. Mine is reaching ~1480mb and I'm on the 1.5gb version of the 580 too.

My opinion, don't bother going SLI. If you have the patience to wait for Kepler then do so, the price of a good 1000W PSU, an extra 580, plus your existing one will easily afford a 680 when it hits the shelves, and will without question run on a single 650W PSU.

If you want something now then 7970 is probably your best bet, which again is easily within the budget of a good 1000W PSU and one new 580, you could even have some left over from the sale of your existing 580 :D
 
RobSmith said:
Therein lies your problem - 1.5gb VRAM is going to limit your ability to play at higher resolutions (2560x1440?), providing that you wanted to have your settings maxed out.

You can see for yourself if you use MSI afterburner on-screen display to track memory usage when playing BF3 on ultra, just at 1080. Mine is reaching ~1480mb and I'm on the 1.5gb version of the 580 too.

My opinion, don't bother going SLI. If you have the patience to wait for Kepler then do so, the price of a good 1000W PSU, an extra 580, plus your existing one will easily afford a 680 when it hits the shelves, and will without question run on a single 650W PSU.

If you want something now then 7970 is probably your best bet, which again is easily within the budget of a good 1000W PSU and one new 580, you could even have some left over from the sale of your existing 580 :D
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Hi, thanks for the reply..the reason I wanted to go SLI or CF is because I want to play BF3 on 3 monitors. I don't think i'll be able to run 3 monitors on a single card.

EDIT: Just read about eyefinity...how will a 7970 perform on 3 monitors..playing BF3 on maxed out settings?
 
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DennisColes said:
Hi, thanks for the reply..the reason I wanted to go SLI or CF is because I want to play BF3 on 3 monitors. I don't think i'll be able to run 3 monitors on a single card.

EDIT: Just read about eyefinity...how will a 7970 perform on 3 monitors..playing BF3 on maxed out settings?
Click to expand...

Sure, going SLI would be ideal if you are going with eyefinity, but there are single chip cards available that are more than suited to handling it on their own, the 7970 being one of them.

Take a look at some of the Heaven results from Gibbo's testing on the performance of a single 7970, and bare in mind the card has plenty of overclocking headroom as the drivers mature.
 
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