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Scared to blow up my PSU with SLi OC - How do i test stability?

post #1 of 9
Thread Starter 
EDIT: Hey guys, just to clear this up, I'm asking about Overclocking the SLi! not default clocks SLi - thanks

Hello guys, i have a corsair TX750 PSU which i bought originally to run GTX460 Sli... that didn't work out as i'd hoped and now i'm running to 570's problem is i don't know if this PSU can live if i stress test the cards with OCCT.

The clocks i want to test are
Core - 850Mhz
Mem - 2000Mhz
Voltage - 1.038v and 1.043v for the other

Running a Core i5 2500k at 4.2Ghz with 1.26v

Running 2 500GB 7200RPM drives in raid0

So will it blow up? or can i push it to the max?
Edited by th3illusiveman - 1/25/12 at 1:04pm
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post #2 of 9
It will work fine.. 650W is enough to run SLI, and 750W is plenty to run 570's SLI

Good luck smile.gif
post #3 of 9
750w is perfectly fine, especially since you have a quality unit.
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post #4 of 9
It should be enough, but I would recommend looking up some 570 SLI reviews (such as this one) to see what total power draw they were recording.
post #5 of 9
750W is perfectly fine, you can even overclock the CPU by 40% and overclock the GPU's your fine, but start over volting or running BONIC or F@H and you are going to need a bigger unit
    
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post #6 of 9
Thread Starter 
Quote:
Originally Posted by t-ramp View Post

It should be enough, but I would recommend looking up some 570 SLI reviews (such as this one) to see what total power draw they were recording.

in your review he ends up Pulling 870W with OC on the GPU and CPU! lol

He has both cards att 1.1v though and mine are at 1.038/1.043 but IDK how much less that equates to. I think i will stick to 800Mhz with 0.988/1.012 lol
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post #7 of 9
750W Corsair TX is good enough for 570 SLI.
post #8 of 9
http://www.guru3d.com/article/geforce-gtx-570-sli-review/13
More realistic power usage. Your not going to hit huge consumption gaming as you would running Furmark. That review also doesn't specify if he's excluded his monitor and he also hasn't included the -20% from his power supplies efficiency rating.

If you are really worried, pick up a Kill-A-Watt meter. My absolute peak usage in BF3, 3dmark11 or Unique with my two 470's mildly overclocked and over-volted is around 550w from the wall, monitor excluded. -15 to 20% from the normal PSU's efficiency is around 440-475w. Non overclocked the consumption was around 390w, PSU efficiency included. The GTX 470's were also rated at 215w 225w and the 570's are not much different, 219w. Though it does start adding up as you over-volt and oc, I wouldn't worry in your case.
Edited by pengs - 1/25/12 at 3:27pm
post #9 of 9
You'll be fine. I also have a Corsair 750W PSU and two 570s. I have them both highly overclocked and my CPU is also really nicely overclocked as well. No issues here.
    
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