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SLi GTX 580

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Joined
25 Apr 2010
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18
I currently have a Corsair 1000w power supply. I'm looking at getting SLi GTX 580's. Anyone know if 1000w is ok ?

PSU I've had it it since June '09 shouldn't have lost much juice since then ?.
 
This mainly relates to Tri SLI but if you have the HX1000 I'll refer you to this and you can make your own mind up:

Not even safe to do GTX580 2-way SLI. Reason:

Just be careful with the HX1000 PSU, because it is essentially made of two 500W PSUs, and there is no load balance between the two +12V rails. Each +12V rail can only power up to 500W 40A, but the requirement for a single GTX580 in a complete machine is 600W 42A, which exceeds the requirement of your GTX580 which shares the same +12V rail as your CPU.

It might work fine. Many people have been running GTX580 SLI on HX1000 and never met any problem. However some unlucky people, including me, have encountered problems, mostly instability in such setup. It really depends on the quality of the specific sample of your HX1000 - if the +12V rail which is shared by your CPU and a GTX580 can overload some bit fine then it's fine.

If you decide to move to a new PSU, then the Corsair AX850 works great for GTX580 2-way SLI, because that PSU is a single rail, and you don't need to worry about load balancing between rails.

For TRI-SLI, the AX1200 or the HCP-1200 is the best choice. By overclocking with volt bumps to 1.15V on each card I saw my AX1200 drawing 1280W from the wall.

From this thread.
 
I am running the 1050w Corsair PSU with 580 sli overclocked with an overclocked cpu etc hard drives - voltages are rock

runs it all easy mate dont stress

Just read post above - my psu is 1 rail of 85 amps so is perfecty
 
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