Core Voltage Flucuating?

[zigzag]

Lately I have noticed that my core voltage has started fluctuating from 1.76 to 1.86. I'm running an Athlon XP 1900+. Is this a bad thing? The average always comes out to 1.84, but i'm still concerned. I dont' recall this happening before. Thanks.

-zigzag

 

[nja469]

Do you have it set to default in the vcore settings, if not what setting sdo you have it at?

"Opinions are like assholes, everyone has one"

 

[zigzag]

I'm fairly certain it is on the CPU default setting, but I will check when I get home from work. Which setting do your recommend?

-zigzag

 

[zigzag]

Ok, so I just checked my monitor and the voltage has been stable at 1.84 all day. What gives! Any thoughts as to what could have caused this? I haven't changed any settings whatsoever.

-zigzag

 

[Guest]

default is 1.75VDC, if it is set to 1.75 in the BIOS and you are getting 1.85 then that could be a sign that the regulator on your M/B is going bad.

 

[zigzag]

Well I think I may have set it up incorrectly as I'm positive its been running at 1.85 since I built the system. I'll check everything as soon as I get home. Thanks for all your input!

-zigzag

 

[cakecake]

Usually the core voltage fluctuating is a problem with the motherboard power regulation and not the PSU.

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[nja469]

Besides in theory, has there been any sign that a fluctuating vcore, say a minor flucuation from 1.74 to 1.76 back and forth for instance causing damage to any components?

"Opinions are like assholes, everyone has one"

 

[zigzag]

Thanks for all the replies, but the fluctuation has stopped. Has not occured in 3 days now. vcore is locked in at 1.84. I'm thinking it was MBM reading imporperly.

-zigzag

 

[Guest]

most electronics can handle plus or minus 5% voltage swing away from nominal without errors, but that can vary a bit. There are also ratings for the maximum voltage a part can see without breaking.

Opinion: a small fluctuation like 1.74-1.76 is probably within the limits of first tolerance that I mentioned for AMD's(just a guess), so probably wouldn't cause errors much less break anything. That is if that were the actual voltage profile. The problem with software monitors are they are not all that accurate, and if it is saying 1.74-1.76 the real world situation could be much worse.