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XFX Radeon HD 5770 work with an Industry Standard 250W PSU at all?

Last response: in Graphics & Displays
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December 20, 2010 11:34:09 PM

The thread asks it all! :) 
December 20, 2010 11:49:09 PM

it really depends on the PSU 12V rail's Amperes and what else is connected to it.

Minimum 450 Watt Power Supply Requirement according to the manufacturer.
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December 21, 2010 12:04:04 AM

there seems to be a lot of people asking about running 5770's from low powered PSU's. Here is the link yet again http://www.tomshardware.com/reviews/geforce-gts-450-gf1... that system is fairly minimal a core i7 with an ssd hard drive. Depending on your components the power draw may be different. Also the power draw across different rails is not covered. I wouldnt trust a 250w psu, it may run, but it may blow up too...Also when you say "industry standard" what does that even mean? what brand/model PSU is it exactly?
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December 21, 2010 12:24:48 AM

There are some low-wattage Seasonic and FSP PSUs that are actually good for more than their labeled wattage, not that running that way for long is a particularly good idea (and I think they're 300W, which would be enough since the +12V rails are strong).
Anything else though, I would not trust in the absence of a competent technical review (e.g. with load testing, waveform analysis, etc).
Assuming the PSU is of even modest quality (e.g. not Bestec), you should have no trouble with a HD5670.
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December 21, 2010 1:04:32 AM

Yeah, I saw that.
I was just asking
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December 21, 2010 1:20:16 PM

Not a chance, you'll need bigger PSU. :) 
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December 29, 2010 11:35:15 PM

My system at full load maxes at about 350 Watts (using a kill-a-watt) to measure.
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