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Bios Showing 2.8v

post #1 of 6
Thread Starter 
CPUID Hardware Monitor, OCCT and my bios are both showing my 3.3v only putting out 2.86v and my pc keeps crashing is there anyway to tell if its my PSU or my Motherboard without using a PSU tester or voltmeter or should i just buy a PSU tester?
Edited by ModderX - 3/14/13 at 8:39pm
post #2 of 6
well if it's crashing and it's showing 2.8V it's probably the PSU.
buy a cheap multi-meter to confirm. any orange wire on the 20/24pin ATX will be +3.3
depending on the ATX plug you should be able to get a probe in the top while plugged in.
ground the negative lead to the chassis.

you should check the +12 (yellow) and +5 (red) while your at it.

i would only run the PC to confirm. you don't want the PSU taking the rest of the system out with it! eek.gif

most cheap multi-meter's are going to be much more accurate than software so it's worth having anyway.

good luck
Lever Guy
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Brown Bomber
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post #3 of 6
Thread Starter 
Thanks, j ust turned it on to see if it would start and now the 12v is showing 11.8v before it was 12.3v to 12.8v so i def think the PSU it on its way out smile.gif Thank You.

Also is there anyway that it might be my motherboard, just trying to rule everything out without spending anymore cash, gonna try to borrow a multimeter from a friend today.
Edited by ModderX - 3/16/13 at 10:59am
post #4 of 6
The "readings" are irrelevant, they tell you nothing because they're mere guesses.... so pick up a cheap DMM and to a little testing. wink.gif
post #5 of 6
Thread Starter 
How cheap can i pick up a multimeter? I havent had a chance to go look them yet? Any info would be helpful. thanks to all!!!
post #6 of 6
they can be had for less than $10 and will be accurate enough for what you need.
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