Tom's Hardware > Forum > CPU & Components > Power Supplies, PC Cases & Case Mods > Thoughts on Power Factor
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wirelessfender   04-30-2007 at 07:17:47 PM

I'd like do get some info on power factor and psu's. My main concern is hardware performance, and If a psu has a lousy PF rating like 60% does that affect hardware performance or is it just that your paying $1 for 60cents of electricity. Any Help would be greatly appreciated.

Thanks,
-Anthony.

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joefriday   04-30-2007 at 07:34:36 PM
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visit the PSU 101 sticky and look under Power Factor

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dsidious   04-30-2007 at 08:12:59 PM
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Yeah, see the sticky.

The best PSUs out there will make you pay 1$ for 85 cents of electricity. A lot of others will be between 65 and 85. The worst ones will just blow up your computer, making sure it doesn't consume that much electricity :twisted:

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doolittle   04-30-2007 at 08:12:59 PM
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I think you mean efficiency, typically US residents are not charged extra for low power factor ratios - commercial/industrial power meters measure PF and are reflected on the utility bill.

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