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Old 08-16-2009, 06:44 PM   #1 (permalink)
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Default 12V rails

What should my +12V be reading? Bios says it's at 11.9v. Does that mean I'm straining my power supply?
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Old 08-16-2009, 07:58 PM   #2 (permalink)
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Default Re: 12V rails

No, you're not straining your power supply. That's seems fine ;]
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Old 08-16-2009, 08:51 PM   #3 (permalink)
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Default Re: 12V rails

+1 to Nubbleet, that's fine.
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Old 08-16-2009, 08:59 PM   #4 (permalink)
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Default Re: 12V rails

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Originally Posted by 95BlackGA View Post
What should my +12V be reading? Bios says it's at 11.9v. Does that mean I'm straining my power supply?
That seems fine.. all I think is supposed to happen is that you get a reading close to the voltage of that rail

So 11.9v on a 12v Rail is fine. ( I think that's it because I remember an A+ Question was like, "The 5v Rail of a PSU is outputting 0.3v, what do you do?") The answer is replace the PSU btw.
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Old 08-16-2009, 09:31 PM   #5 (permalink)
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Default Re: 12V rails

Ya vern is right, there is like a .03 +/- voltage difference on a 12v rail.
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Old 08-16-2009, 09:32 PM   #6 (permalink)
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Default Re: 12V rails

If ever anyone is really concerned about the power supplies output of voltages they need to get themselves a Digital multi meter and physically test each rail during load and idle..

Atx standards require that each rail be within 5% +/- of itself.
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Old 08-16-2009, 10:01 PM   #7 (permalink)
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Default Re: 12V rails

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If ever anyone is really concerned about the power supplies output of voltages they need to get themselves a Digital multi meter and physically test each rail during load and idle..

Atx standards require that each rail be within 5% +/- of itself.
I could do that, but I have a reputation of shockingly funny videos... Where would I test it, on the molex connectors?
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Old 08-16-2009, 10:07 PM   #8 (permalink)
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Default Re: 12V rails

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Originally Posted by 95BlackGA View Post
I could do that, but I have a reputation of shockingly funny videos... Where would I test it, on the molex connectors?
You got it.
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Old 08-16-2009, 10:23 PM   #9 (permalink)
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Default Re: 12V rails

yea you just shove the red prone into a metal contact of one of the wires..
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Old 08-16-2009, 10:43 PM   #10 (permalink)
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Default Re: 12V rails

Alright, it varies from 11.89 to 12.2 (drops a lot when fan speed is above 4000RPM.) I should be good?
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