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    Radeon HD 5970 Only using one GPU, Hard Reset when 2 used?

    Just one 5970 yep :) Thanks Meghan for the analysis also - I think i'll go for the HX, I'm planning a new rig (incorporating the 5970) and like the modular cabling to keep things tidy.
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    Radeon HD 5970 Only using one GPU, Hard Reset when 2 used?

    Thanks all for your replies (even Ravenseal, despite the abuse :P). I'm going to pick up a new PSU, most likely Corsair 850w :)
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    Radeon HD 5970 Only using one GPU, Hard Reset when 2 used?

    OK, sounds reasonable. Upgrade time :) Thanks for the advice folks! For the record I'm using this PSU: http://www.extremeoverclocking.com/reviews/cases/Akasa_AK-P650FF_1.html Yes, it's rather old now. Any recommendations for a good modern replacement?
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    Radeon HD 5970 Only using one GPU, Hard Reset when 2 used?

    Could be power I guess, my 'SLI ready' 650w PSU seems rather small by today's standards, and I do have 3 hard drives and a bunch of USB stuff running. I guess I could try unplugging all but the basics and see if that helps? I can't seem to find a way to disable a specific GPU, is it buried in...
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    Radeon HD 5970 Only using one GPU, Hard Reset when 2 used?

    I appear to have a problem with my HD5970, and was wondering if any of you helpful folks have experienced similar, can offer advice, or just tell me not to worry about it? :) Using Everest to monitor occupancy and temperatures, under load GPU1 gets hot quickly (and VRM very quickly), but GPU2...