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How to measure vcore / 3,3V / 5V and 12V on an Asus P9X79 LGA2011

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skip1

New Member
Joined
Apr 15, 2020
Hi there,

I've a Asus P9X79 LGA2011 board which is causing some problems.
The computer turns on and after a second suddenly turns off. Then turning itself on again and booting to bios with a message like "ASUS anti surge...."

The voltages shown are way out of range.

vcore 1,7V (!)
3,3V rails is showing 3,6V
5V rail is showing 10,5V
12V rail is showing 24,1V

I'm guessing, if this would be the real values, everything would be dead :D

A BIOS update has been performed. A BIOS reset has been made. Still no luck :-(

The PSU is a bequiet Dark Power Pro 550 Watt. I've checked the PSU with a tester - all voltages are within the specification.
Nevertheless, I attached another PSU to the board - with the same result.


Obviously, there is a problem reading the values from the sensors.

Can anyone tell me please if it's possible to measure the voltages directly on the board? - and if so: where?

I've attached a bunch of high-res images of the board.

Thanks and best regards
 

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Can you get to windows? If so, what do those apps say?

That said, it's time for an upgrade...or at least a new board. I went mess with this too much.
 
I;m curious about the whitest pattern visible in the second image left side of the back plate below the mounting hole looks like some fluid has dried.
 
I;m curious about the whitest pattern visible in the second image left side of the back plate below the mounting hole looks like some fluid has dried.
I also noticed that, looks like evidence of a leak or spill of some kind.

Also @op, why are your board's heatsinks missing from the VRM's/CPU power section? Did you remove them for the photos/troubleshooting or did your board not come with any?

 
Hello again,

first of all the screenshots:

ohm.png

ai_suite.png

I;m curious about the whitest pattern visible in the second image left side of the back plate below the mounting hole looks like some fluid has dried.

oh.. you are right.
I got the board a couple of months ago from someone for free. He just said "it doesn't boot".
so maybe thats really the reason for the problems.. some fluid which came on the board...


Also @OP, why are your board's heatsinks missing from the VRM's/CPU power section? Did you remove them for the photos/troubleshooting or did your board not come with any?
I just removed the heatsinks for the photos and troubleshooting :)

Best regards
 
If only one of those is open, do they still read the same?

Clearly they are anomalous... but.. curious.


I wonder if that Nuvoton chip is giving up the ghost (or maybe that stain has something to do with it). YOu can try another PSU..
 
I agree with that. :)

Give us a budget and what parts you need for that and we can help you out!
 
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