Question ASUS Prime A320M-K Bios "CPU Over Voltage Error!" but normal Voltage on Power Supply test

[JSCroy]

Ok I am running into a "CPU Over Voltage Error!" on boot up. The pertinent components are a EVGA 600 GD, 80+ GOLD 600W, Power Supply
with a ASUS motherboard model# ; PRIME A320M-K.

I was able to access the Asus UEFI Bios utility, and it recorded the following voltages.

Core Voltage 2.626v
+12v was 16.677v
+5v was 6.948v
+3.3v was 5.559v

Without delay I shut the pc off, removed the power supply and checked the voltages with a power supply tester separate from the board. They were as follows,

-12v was 12.1v
+12v1 was 11.9v
+12v2 was 11.9v
5vsb was 5.0v
+5v was 4.9v
+3.3 was 3.3v
PG was 70ms

So far other than isolating and testing the Power Supply, I have tried downgrading/upgrading the BIOS with no changes to the bios/board recorded voltages.
Could the UEFI Bios utility be skewing the voltages?, Could these Bios voltages be phantoms?

 

[CountMike]

Ok I am running into a "CPU Over Voltage Error!" on boot up. The pertinent components are a EVGA 600 GD, 80+ GOLD 600W, Power Supply
with a ASUS motherboard model# ; PRIME A320M-K.

I was able to access the Asus UEFI Bios utility, and it recorded the following voltages.

Core Voltage 2.626v
+12v was 16.677v
+5v was 6.948v
+3.3v was 5.559v

Without delay I shut the pc off, removed the power supply and checked the voltages with a power supply tester separate from the board. They were as follows,

-12v was 12.1v
+12v1 was 11.9v
+12v2 was 11.9v
5vsb was 5.0v
+5v was 4.9v
+3.3 was 3.3v
PG was 70ms

So far other than isolating and testing the Power Supply, I have tried downgrading/upgrading the BIOS with no changes to the bios/board recorded voltages.
Could the UEFI Bios utility be skewing the voltages?, Could these Bios voltages be phantoms?

Some bad sensors there, at those voltages it would literary burn all components. Those indicated voltages are not for/from PSU itself but after VRM.

 

[JSCroy]

On a side note the PC is running, and windows boots up and runs , as long as I tell the Asus UEFI Bios utility to ignore the Core Voltage reading of 2.626v

My first instinct is to try and troubleshoot the sensors you mentioned, and in addition, it wouldn't be a great leap to assume that if the sensors are bad then its possible the VRM itself could be bad.

My fear is that these components lack serviceability which would mean motherboard replacement, correct?

Also thanks for the response....