confused about Vcore in bios

[superb]

my a7v(1004c) bios show the vcore 1.57v(default voltage) but i have set the voltage to 1.615v .my cpu/mb temp. show the same value in both asus probe monitor and bios set up without problem.
i am running the extra juice of 100 mhz from my duron 650.
i just want to know why my bios show 1.57v instead of the actual voltage 1.615v.(i have set the VID setting to 1.615v in jumper mode)

 

[paulip88]

Perhaps the readings are correct and your board/PSU just isn't supplying enough power. Generally, people have the opposite observation where the actual voltage is higher than what they have it set to.

What PSU do you have?