Power supply good enough for a 3870?

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killab2oo5

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#1 killab2oo5
Member since 2005 • 13621 Posts

^_^ Hello all. I just purchased a HD 3870 from newegg and was wondering if my psu is good enough to run it. On ATi they call for a 440w PSU and dont list any volts.I have a Antec NeoHE 380w PSU.

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RikkAndrsn

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#2 RikkAndrsn
Member since 2005 • 1155 Posts
You might suffer from some brown outs, I'm not certain on the 12v rails on your PSU or the requirements of the HD 3870, but it's never a good idea to try and undercut the minimum.
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zache86

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#3 zache86
Member since 2006 • 424 Posts
yeah its going to be close, I would say go at least 450 to be safe. They arent that expensive.
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killab2oo5

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#4 killab2oo5
Member since 2005 • 13621 Posts
What's a brown out?
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sabbath2gamer

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#5 sabbath2gamer
Member since 2007 • 2515 Posts
try buying the vx550w corsair cmpsu i have it and its awsome it can be had for 80 or 70 dollars on zipzoomfly
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unrealplaya55

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#6 unrealplaya55
Member since 2007 • 1278 Posts
well im guessing here but since the 8800gt and 3870 are similar i would bet they use close to the same power. i have a corsair 450w and it run my oc'ed 8800gt fine. 450w is enough but you need to get a name brand for 450 to work.
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