Am I going to have enough juice for tri-SLI?

[zlojack]

My system is in my sig.

My planned upgrade is tri-SLI GTX 285s for a gaming and folding monster, but it looks like I might not have enough juice for three cards.

My watercooling consists of 2 loops with 6 Scythe fans and two MCP655 pumps. I was thinking about adding a third pump for a small chipset loop, but that might not be on the cards now if my PSU isn't up to the task of tri-SLI.


Am I doomed to regular SLI? :(

[Langer]

It's not just about the amount of juice its also the quality of the signal.

When I had tri-SLi I had to run 2 1200watt PSUs on separate power conditioners to get it stable. Eventually I got evga to trade my 3x9800gtx's in for 2xgtx280 ssc's.

[zlojack]

It's not just about the amount of juice its also the quality of the signal.

When I had tri-SLi I had to run 2 1200watt PSUs on separate power conditioners to get it stable. Eventually I got evga to trade my 3x9800gtx's in for 2xgtx280 ssc's.
Well, the quality of the signal with this PSU is top-notch. Highly rated by all the testers (HWC, [H], Johnny Guru)

But I'm worried that once I set the rig to folding on the GPUs and crunching on the CPU with some overclocking I might be screwed for power.

[Fitseries3]

i run WAAAAAAY more than that on my 860watt pc power and cooling. you just need a high quality psu.

[zlojack]

i run WAAAAAAY more than that on my 860watt pc power and cooling. you just need a high quality psu.

Well, this PSU is good quality.

My issue is that I'm also going to be folding and overclocking, so things will be running under heavy load 24/7.

I guess I could try it and if it doesn't work, I could sell one of the cards.

[Langer]

I ran 2 silverstone zeus units and my issue was my old house - the power wasn't clean enough coming in.

[zlojack]

I ran 2 silverstone zeus units and my issue was my old house - the power wasn't clean enough coming in.
That could be...my house has terrible wiring.

[Xilikon]

Corsair HX1000 ? You will have enough juice to run all 3. Hell, I know of a folder who ran 3x9800GX2 with a Corsair TX750 without issues.

[zlojack]

Well, I'm going to go for it.

If it doesn't work out, I'll sell one of the cards :D

[Kayin]

I ran QuadFire off my PCP&C 750 Silencer. I also ran 8800 GTS SLi off my Corsair HX520.

[smee]

My buddy ran tri-sli GTX280's all OC'ed on a PCP&C 850W... I don't see why you could run tri-sli GTX285's on a 1000w.

BTW, the rest of my buddy's system was VERY power hungry too, 6GB corsair, k7 965 extreme (OC'ed), two full watercooling loops, fans galore..... You should be fine. :up:

[Ricey]

Jack,

Don't worry. My opinion is that you would be far from troubled. Its a quality PSU. There are also more quality PSUs that force you to make trade offs, like noise level. This one's a quality product for sure, so don't fret over it. Don't go by the wattage rating. Its meaningless.

I may switch over to two of these for my next machine, although I still have yet to get used to modular cables.

[zlojack]

Thanks guys...I'm going to go for it!!