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Thread: Would a component that draws 5.6A be a bit to much for a PCs PSU?

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    ww1
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    Would a component that draws 5.6A be a bit to much for a PCs PSU?

    I have the Enermax E565 something (535w). The component is a thermoelectric cooler (peltier)

    http://www.marlow.com/Products/produ...p?ProductID=52

    I figured it would cool my card better than any fan, it's just I'm not sure if the PSU is up to the task!
    The draw of 5.6A is constant and maximum as well.

    My card is a Sapphire X1950PRO (stock cooling)
    Last edited by ww1; 13-12-2006 at 11:02 AM. Reason: Link was wrong.

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    Senior Member chrestomanci's Avatar
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    Should be OK, but you need to do is some math.

    What voltage does it draw 5.6A ? It it is 12V then that is about 70W, (similar to a CPU or mid-range graphics card). If it is 5V then obvoulsy much less.

    Your PSU will have the maximum permisable current on each Rail written on it. You should add up the total draw on the rail you want to use, and make sure there is enough spare for your peltier. Some high end PSUs have many Rails, so chose one that is not much used.

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    ww1
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    Oops, the link was wrong but have corrected it now.
    It can operate on 12v fine so will have to sit down in a minute to work out some numbers!

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    Don't think that peltier will be man enough for the job as it were. As a rule of thumb you need double the card's heat output as a size for your peltier to see good results. Also you'll need a huge fan on the back of it (or water cooling of course).

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