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Old December 21, 2012, 10:47 PM
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sswilson sswilson is online now
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Short answer is that yes, a less than perfect PSU can have an affect on your vid card. Unfortunately, without a quality PSU to swap in there's no guarantee it'll resolve your issue.

Back in the day (Personal experience during the ATI 9600 or 1950pro eras), Sapphire's claim for just about any issues with certain models was that the PSU wasn't up to snuff and that they only recommended a few (I believe it was 3 different models last time I was on their forums.... ;) ) brands / models. They were half right, but weren't telling the whole story.... yes a quality PSU with very clean power could make a difference for a vid card that was failing at stock speeds, but the other part of the story was that sapphire's low quality VRMs weren't up to the task of cleaning up any dirty power at all and thus were just as guilty (V2 of the 1950pro cards had a completely revamped VRM section and voila... alll of the complaints about cards failing at stock speeds seemed to go away).

So, no guarantees, but the PSU would be the first place I'd look, especially if there doesn't seem to be a systemic problem with that particular batch / model of vid card.
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