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Is my PSU powerful enough?

Hi, I'm building a pc but have recently bought a XFX PRO 450w to replace the one in my old PC (which, naturally, made me want to replace ALL the parts). If possible I would like to avoid getting a new PSU as the one I bought is less than a month old.

this is the system I am looking to build (I already have the GPU from old system too):

ASUS Sabertooth 990fx
AMD Bulldozer FX-6100 3.3 ghz
8GB Corsair Vengeance (2x4GB) 1866MHz
Nvidia GeForce 8800 GTS

I'm worried that it will work, but if I put it under any stress it won't. I'm not planning to overclock anything. I would appreciate any advice as I have not been able to make much sense of what I have read.

Thanks
4 answers Last reply Best Answer
More about powerful enough
  1. Best answer
    Yes. More than adequate.

    An 8800GTS (depending on the model - there are 4) only needs about 10 amps (120 watts). The CPU needs no more than 8 amps. I doubt if the rest of the system will pull more than 100 watts,
  2. You should be fine. I ran a core i7, 6gb ram, and a Nvidia GTX460 off a Antec 430w.
  3. dvanholland & jsc

    Thanks to you both for your different answers. I will be able to sleep now!

    Thank you very very much!
  4. Best answer selected by S0dfish.
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