Power Supply Voltages(low?)


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I noticed my pcprobe moniter(asus utility) popped up. It said my voltages for my 3.3 rail dipped below 3.0 for just a bit. It is now registering about 3.04. My 12.0 rail is registering about 12.6. Should I be concerned about these readings?

Edited by shanenin
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I noticed my pcprobe moniter(asus utility) popped up. It said my voltages for my 3.3 rail dipped below 3.0 for just a bit. It is now registering about 3.04. My 12.0 rail is registering about 12.6. Should I be concerned about these readings?

I wouldn't be concerned. Voltages will vary as long as its nothing crazy from normal

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  • 4 weeks later...

yesterday, my 3.3 voltage was getting as low as 2.7 for short periods. I also was noticing my harddrive stopping and starting(I could hear it). It would not crash my system. but everything would lock for a minute. This morning I replaced it, all is well.

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I noticed my pcprobe moniter(asus utility) popped up. It said my voltages for my 3.3 rail dipped below 3.0 for just a bit. It is now registering about 3.04. My 12.0 rail is registering about 12.6. Should I be concerned about these readings?

Normally; I get concerned if voltages go more than 10% off from specs. I like to see them within 5%

http://www.informit.com/articles/article.a...Num=12&rl=1

Has a good table note that they say a loose tolerance is -10% to + 8% and the tight tolerance is +/- 5 %

Offhand, I would say you probably have an overloaded 3.3V rail and should either consider removing something that draws on it or buying apower supply with a bit more oomph.

Interesting read on powering computers in cars.

http://www.carnetix.com/regulators/how_to_coose_psu.html

PC Repair and Maintenance: In-depth Look at Power Supply

* By Scott Mueller.

http://www.informit.com/articles/article.a...qNum=1&rl=1

A great read, worth the time to go through all the sections to learn more.

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thanks for the insight and suggestions :-)

edit added later//

I skimmed that article, lots of good information. I had know idea that dells made between 1996 and 2000 apperaed to use a standard atx power supply, but was not. A standard power supply would fit, but you would end up frying your electronics,

Edited by shanenin
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