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Power supply ?

quick stupid question.... what watt power supply should i get with this computer

Intel pentium 4 640 3.2ghz

2 gb ddr2

geforce 6800 gt

4 80 gb harddrives

the power supply it came with is 650 but the psu calculator says 400 ? so should i go with another 650 or 400-500 ?
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  1. Best answer
    That's a really old system. A lot of effort to upgrade it would likely be wasted. Still, a PSU is something you can buy and plan on re-using when you build a new rig. A quality 500W-550W PSU can handle almost any single graphics card (just not the HD5970 or GTX470&480). Look for full range active PFC (no little voltage switch) and 80+ certification. Antec, Corsair, Seasonic, and Enermax are among the better brands.
    What do you intend to do with this machine?
  2. thanks for the response, i know its an old system ( in pc years ) but i dont do a whole lot on it ... my psu died and i just need a replacement - mild gaming, internet, some school work. so i should be fine
  3. Best answer selected by godftw.
  4. There are other good choices, but just to keep it simple, check out a 430W or 500W Antec Earthwatts.
    I'd also suggest that you'd see a notable performance improvement if you upgrade your GPU, even to a HD4670 (ATi) or GT240 (nVidia).
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