voltage question on an35n

[dyle]

hello. this is my first post here but been lurking for awhile.

I just recently built a system and have been playing around with the settings. Here are the specs:

athlon xp-m 2200+ AQHYA stepping
512 corsair vs pc3200
Shuttle AN35N
Zalman 7000a-Cu
sapphire radeon 9000 pro (i know, but it was free)

I upgraded my mb BIOS to the lastest verison at Shuttle's website. In MBM, my voltage readings are not consistent to what i set in the BIOS. ex., right now, i'm running the thing on stock speed at 1.200 vcore in the bios. However, MBM says that it's averaging 1.35v.

I tried chaning the BIOS setting to 1.35V. I boot windows and it reads that it's averaging at around 1.55+V.

Is this a normal occurence? The reason why i'm asking is even when I set my CPU at 166x10 at 1.35V in the bios, it crashes when i'm playing games. STable for at least 4 hours in prime 95 though but i get high temps, around upper 40s idle and upper 50s on load. When I lower the vcore to 1.200 and average 1.35 according to the MBM sensors, my system is perfectly stable with temps never going above 40 even on load.

 

[dyle]

Well, for those of you who care....

I was able to fix it by reinstalling the heatsink and cpu. Also reapplied AS5 for added measure. It's finally reading the right voltage setting. My heatsink probably got bumped while I was messing around with the wires in the case.

Thanks for listening!

 

[Fern]

Hmm.. Pretty strange. I've an an35n-ultra (never flashed), it and MBM5 agree.

My NF7-S though undervolts according to MBM5. But only by .05v though.

The only shuttle forum I know of is over HERE, may wanna check if this normal, or indicates a voltage regulator problem with your mobo.