GA-M55S-S3, vcore problem

gareth170 · 25 Oct 2007 at 13:33

as anyone got this GA-M55S-S3 motherboard or knows about it?

when im running a program in windows, if it uses between 1-50% of the cpu , the vcore goes up to 1.46v and if a program/game uses 100% of the cpu ,the vcore goes up to 1.52v... i've tryed two different softwares "EVEREST Ultimate Edition" and "SiSoftware Sandra Lite XIIc" both give the same reading...

its at stock speed..

WJA96 · 25 Oct 2007 at 19:25

It's normal for the voltage to vary under load. The actual numbers read by most of these programs are rubbish in absolute terms, but they do give an indication of what is going on.

If your system is running at low utilization then the CPU uses various methods to keep itself cool (and therefore quiet) and to conserve power. One of these strategies is to turn down the CPU voltage at low utilization. This is almost certainly what you are seeing.

gareth170 · 25 Oct 2007 at 20:19

but i would understand that if coolnquiet was enabled but it isn't.. my cpu as a range of 1.40 - 1.45v with coolnquiet disabled, with coolnquiet enabled its 1.10 - 1.45v.. but when the cpu is 100% in uses the vcore goes over 1.45v to 1.52v.. when it goes to 1.52v the +12v drops a little, also the fans noises drop alittle..

0% uses

100%

WJA96 · 26 Oct 2007 at 06:18

As I said in my original post - the actual values you are seeing aren't necessarily the correct ones. The voltage monitoring chip doesn't actually report a voltage, it reports a digital value between 0 and 65,000-odd. The program that displays the voltages has to interpret that change in value and show it as a voltage. If the baseline is wrong, all the values are wrong, but they are consistently wrong - like a car with a speedometer that over-reads by 20mph - when you're doing 20mph, it shows 40mph and at 60mph it shpw 80 etc.

Many people seem to believe that setting the CPU voltage to AUTO gives them a fixed VCore but it doesn't - it allows the motherboard to vary the voltage as it sees fit. In any case, I don't think it's actually a problem, is it?

You don't say what your PSU is, but if you are noticing fan voltages dropping under load, it sounds like the PSU is struggling, but I've never seen a PSU that could be loaded THAT hard and not show in some other way (instability).

gareth170 · 26 Oct 2007 at 10:41

my psu a crap qtec 550w .but ive ordered a ezcool 650w psu because i have a 2900pro which isn't in my system yet till i get the psu.. in the bios the vcore is set on normal which it says normal is 1.400v.. ive even tryed settings it to 1.400v manuely because still the same thing... ive contacted GIGABYTE and they said it shouldn't be that much eeven if it was a wrong reading, it should be only be out by 2 or 3...

i had a asus m2r32-mvp which the readings was fine on that but that failed after updateing the bios ....

do u have this gigabyte motherboard?