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Measuring 12v Rail

A

archevilangel

[H]ard|Gawd
Joined
Jan 15, 2003
Messages
1,824
anyone know/have a guide to measuring the 12 v rail using a multimeter and a molex connector? The voltages in the pchealth section of my bios seem to fluctuate a lot and are around 6-8% off on the 12v rail and I think that might be inhibiting my overclock(when I hold down keys on my keyboard they go + or - .02 on vcore which seems like a lot)
 
hmm 11.99 and 5.07 with 0 load and 11.92 and 5.08 with load. BRB going to raise the vcore and check the results
 
Originally posted by archevilangel
hmm 11.99 and 5.07 with 0 load and 11.92 and 5.08 with load. BRB going to raise the vcore and check the results
Click to expand...
just curious what does your motherboard reads them at? i can see them in the bios "pc health status" menu or something like that. and i know they arent as accurate as a multimeter.
 
with 1.95 vcore and 2.4 ghz it was fluctuating between 12.02 and 11.92 is that normal?

In the bios it reads 11.79 to 11.88 when the multimeter says 11.92 to 12.02, to me it looks like the bios looks accurate on relative voltages, but not on getting the exact numbers. Say it your 12v rail goes down about .1, in the bios it shows it going down .1 but where it started at is different. Is 11.92 too low? seems pretty close to 10% to me.
 
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