CPU Over Voltage Error / PSU Power Surges

AntonyyB

Honorable
Apr 21, 2013
4
0
10,510
Hi Everyone,

Today I powered on my PC to find the following error:

"CPU Over Voltage Error!"

I completely rebuilt my computer while adding as few components as possible each time I powered on and checking all connections / cables. I cannot see any visual problems but the error always occurs as of this morning. Sadly I do not have any spare components to substitute for a proper test, so I was wondering if someone else has experienced it (I have seen other threads but none seem to suggest a solution that has worked for me).

From checking the BIOS I found red text showing the VCCIN to be 3.584 Volts... I have seen others saying this should be around 1.8 Volts although I have not seen the same CPU as mine elsewhere. This seems very dangerous! I finally found the courage to select "ignore" on the BIOS monitor for this particular error and the performance seems fine.

I also found a program called "open hardware monitor" which confirms an excess of 3.4xx Volts at all times for some sensors.

Specs:

  • - Asus H97M Plus MATX Motherboard (BIOS updated to 2603)
    - Intel Xeon E3 1230 V3 3.30Ghz CPU (Scythe Cooler)
    - Corsair Vengeance DDR3 8GB RAM (2x 4GB 1333Mhz Modules)
    - Gigabyte R9 290X Graphics Card (Positioned in top PCIE / DIY Backplate / Gelid Icy Vision R2)
    - [strike]BeQuiet Straight Power E8 600Watt[/strike] EVGA 650 GQ Gold Hybrid Modular 650Watt
    - Samsung Evo 850 250GB SSD
    - WD Green 2TB HDD

    I do not overclock.


Could someone please advise me on if I should even be using it right now? Is it safe?
Are the [strike]PSU[/strike], Motherboard, and CPU the only potential problems? I appreciate any help that can be provided!

I will continuously update to help those with a similar problem in the future.

----------------------------------------------------------------------------------------------------
UPDATE 1:

The problem still exists although it has been fully functional until this morning.
A new error message appeared at the post screen saying

"Power supply surges detected during the previous power on.
ASUS Anti-Surge was triggered to protect system from unstable power supply unit!"

Although I felt that my power supply had no issues I now see that it could be the problem. However, I have noticed that the electrics where I am staying are always acting oddly, so if I do replace the power supply it might just break again!

UPDATE 2:

I took the investment and replaced the BeQuiet SP E8 600w PSU with an EVGA GQ 650w Gold Semi-Modular... The problem is still there so I have put a strike through the PSU being the issue. Not a bad deal for £50 so I can't complain about the upgrade to Gold+Modular... Plus I can get some money back now that I know the BeQuiet wasn't the problem and it can go on eBay or something.

Only gripe is the EVGA "eco" switch which turns the fan off under a certain temperature... but then it emits this annoying buzzing!
 

AntonyyB

Honorable
Apr 21, 2013
4
0
10,510


Thanks for your reply! I have tried loading the default BIOS settings but the error is still there, I also read that I can manually set the input voltage to a safe level however it does not actually let me change it in my BIOS.

If I am not seeing any issues and have no impacts upon temperature / stability, is it possible for the input voltage to have a faulty sensor? Would this said sensor reside on the motherboard?