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Power Supply Power Utilization

Started by xyzz1233 , Sep 27 2008 06:44 PM

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#1
xyzz1233
Posted 27 September 2008 - 06:44 PM

xyzz1233

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Hey everyone. I've got a little question.

Say I have a 550W power supply, but my computer isn't using all 550 watts on there. Will the PSU still suck up 550 watts, or will it only take in what it needs?

I've heard multiple answers to this and I'm kinda curious. Thanks, guys! :)

Edited by xyzz1233, 27 September 2008 - 06:44 PM.

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#2
Major Payne
Posted 27 September 2008 - 10:07 PM

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The current drawn from each voltage source is only the current needed at any given time. Just because the PS is a 550w one doesn't mean it draws that full amount of power at all times. That would be highly inefficient.
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#3
xyzz1233
Posted 28 September 2008 - 09:15 AM

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That's what I figured. Thanks for the quick response. :)
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#4
Major Payne
Posted 28 September 2008 - 04:10 PM

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You're welcome. Glad devices don't really consume full power when it's not needed. :)
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