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ASRock Z77 Fatal1ty Pro Recommended PSU? - Page 2

post #11 of 14
Thread Starter 
Nothing New or recent, I have an old Antec 500w in a rig that is probably 8yrs old. Then just a generic 400w from that old case.that is the same age....they do work but not well enough to run this new system.


I was thinking that it may have something to do with the "Active PFC" ?
Edited by antiflow - 12/1/12 at 10:23pm
post #12 of 14
That's either motherboard or PSU.

You won't need 1000-1250W PSU unless you are planning to run 4 GPUs, or GPUs start to consume more power. In any case, 750W was always enough for 2 GPU setups.
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post #13 of 14
Thread Starter 
I think it's the PSU, and that ASRock z77 Fatal1ty Pro, just don't get along together!

So, the 750-850W power supplies are plenty big enough for my system huh, Ok, That's sounds good to me.

I just figured More was Better, to rule out any problems with power issues.

Why do they make desk top PSU's up to 1600W anyway?

I read that SeaSonic is also the major supplier for alot of the other well known PSU brands out there, so they must be good & reliable units.

So now I'm hunting the internet for a good deal on one....
post #14 of 14
Well, 4 overclocked GTX580s could use something like 300W each... New cards are much more power efficient.

You don't want to get a PSU that's you are going to load only 50% since efficiency will suffer.
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Ivy Bridge
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Hard DriveCoolingCoolingOS
Western Digital RED 3 TB Custom Loop Lamptron FC Touch Windows 8.1 update 1 Professional 
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