3.3v voltage drops to 2.9v at load - Problem?

[Brizzles]

Been having issues with a certain game that crashes my PC.

No blue screen, just an instant black screen powerdown then restart.

Have tried ;

Game reinstall and repair
Different GFX card drivers
Freesync on and off
Disabling overlays from other programs
Undervolted the GPU

The game is not that demanding really, Elder Scrolls Online, its cpu heavy but with a 3900x it barely uses it.

I've tried to load the PC to try and recreate the crash, but nothing.

The only thing i have noticed is the power rails, the 3.3v seems very low - 2.9v at full load ;



New PSU time or is HWiNFO64 bad at reporting ?

Any pointers would be appreciated.

 

[VersionMonkey]

5.5V and 12V both look low too - 5.5V is out of spec and only the 12V is just in spec., I think.

Do they come up to spec with the system idle?

HWInfo could have the calculation wrong, do you have the Gigabyte SIV software installed (I can't remember if that shows voltages though).

 

[Holst1981]

Might be worth checking the voltages with a multimeter, some onboard monitoring is accurate but some is not.

 

[Brizzles]

5.5V and 12V both look low too - 5.5V is out of spec and only the 12V is just in spec., I think.

Do they come up to spec with the system idle?

HWInfo could have the calculation wrong, do you have the Gigabyte SIV software installed (I can't remember if that shows voltages though).

Idle voltages are as follows ;



And direct from BIOS ;



Pretty much the same.

 

[VersionMonkey]

I'd second the suggestion of using a multi-meter if you can. The 3.3V is only just in spec in the BIOS shot (minimum is 3.135V) and the 5V is on the low side too (minimum for that is 4.75V).

It does look like the PSU isn't holding up at least the minor voltages, though.