power supply +12v rail

[mrd2689a]

Hi. I just built a new pc, you can see the specs in my signature. I am having a problem with my +12v rail. In Core Center, which I use to monitor my motherboard/cpu, I am getting a reading of 11.66v on the +12v rail. Is this bad? Is there anything that I can do to get it up to 12v? Thanks a lot!
Matt

 

[D1gger]

I have the same issue with my PS when looking at ASUSProbe. The 12V looks like 11.6V, but when I look in the bios is is pegged at 11.89V. The software monitoring tools are notoriously inaccurate. I would check the reading in bios.

 

[mrd2689a]

D1gger thanks for replying so quick
You just gave me a big a$s boost of confidence, I'm going to check my bios :beer:
Thanks a ton! Illl report back in a few
Matt

 

[Raj]

usually there is a small variation in the voltage, and it is never exactly 12v. I would suggest watching it and if it goes below 11V then you may want to try replacing the power supply. Otherwise I see no reason to worry.

 

[mrd2689a]

Hi again
I just checked my bios and I am very happy to report that in the bios, my +12v rail is at 11.98something. WOO-HOO!
However, I did just think of something. Could this be because the cpu is under such full load at the bios (that is why the temperature increases steadily in bios; bios is written in a very low-level code, it can even heat up a A64, which it does). Does the fluctuation of the +12v rail have a correlation with the activity of the CPU (how much it is performing)? Please post back soon. Thanks again!
Matt

 

[mechBgon]

My usual suggestion is to check the PSU with a multimeter if there's any doubt about the output. Got Fluke?

 

[Bassyhead]

Yes, software monitoring tools are notorious for being inaccurate. A general rule of thumb is that the voltages should be within 10% of the required value. In this case, 11.66v was still ok as it was less than a 3% deviation from 12v.

 

[mrd2689a]

ok guys thanks a lot!!!