CPU vcore decrease on load

[edwinjr]

Hi,
I have an old computer.
It's act strangely, when under load the vcore decrease from 1.3volt to 1.26volt and sometimes to 1.28volt.

The cpu is Athlon X2 5000BE@2.6GHz (default) on Biostar GF8100M2+ TE.
Can someone explain why this happen?

Thanks.

 

[mavroxur]

Because under load, your CPU's power consumption increases. Some motherboard voltage regulators "sag" more than others and can't maintain the exact vCore, and this is normal. In your situation, it's nothing to worry about. You're talking about 0.02v to 0.04v of sag.