Vcore voltage error

[lachuh]

Hello,

I have a Asus P4S8X-X and in the beginning i didnt get an error message, and
now i get an error while booting the system for the VCORE voltage +3.3, the
voltage is 3.63 so its to high, how do i set it back to 3.3?

Ivar

 

[Tocapet]

Replace your power supply

 

[lachuh]

But everything is working fine, what is wrong with the power supply?

 

[Jim]

But everything is working fine, what is wrong with the power supply?

The power supply may have a bad regulator for the 3.3v line or with some
supplies you may have too much load on the 5 or 12 volt lines causing the
3.3 line to go up. Or you may have a bad sensor on the board. You can
check with a voltmeter on the atx connector (orange) .

 

[DaveW]

You have either a bad motherboard or a bad power supply.

 

[Ben Pope]

But everything is working fine, what is wrong with the power supply?

You just told us that it is not producing the correct regulated output on
it's 3.3V line... thats whats wrong with it.

Ben

 

[Barry Watzman]

Wait a minute ...

Vcore is not 3.3 volts on most CPUs, Vcore is much lower (about 1.5
volts), and it comes from a switching power supply on the motherboard
that runs from +12 volts from the PSU.

Can you confirm that the 3.3 volt line is actually 3.63 volts with a
real DVM (digital volt-meter) by measuring the proper pin of the 20-pin
ATX power supply?

Obviously, 3.63 volts on the 3.3 volt line is high, but it's not
catastrophically high, in fact it's exactly 10% high. If it really is
high, the only fix is to replace the power supply. In most power
supplies (especially cheap ones), only one voltage is actually actively
regulated, and it's usually the 5 volt line, the others "track" simply
due to the turns ratio of the pulse transformers in the power supply.