bluescreen Bluescreen on boot. CPU, motherboard or PSU?

[Sealance]

So, my old x58-based gaming pc is on it's last verse.

The symptom is that it crashes on boot. I moved the ssd over to a backup pc with an identical Asus P6X58D-E board (with an older bios) and the same windows installation booted just fine.

I moved the ram and gpu over and things are stable. I've narrowed it down to either the cpu, psu or motherboard. The CPU (Xeon W3680) didn't want to run stable at stock voltage and required at least 1.35V which leads me to believe that the cpu is degraded to the point it needs replacing, wonky motherboard (did give me some issues with the old i7 960 previously used) that can't feed enough voltage and/or current to the cpu, or that the 10+ years old Corsair HX1000V power supply is starting to show it's age.

 

I'm considering ordering another xeon off aliexpress just to throw into the machine that's working cause the 1st gen i7 is struggling with games. 

[Palden]

If you have a multimeter, test your PSU voltage, just BE CAREFUL

[Sealance]

I have multimeters but I'll probably get a psu tester also

[Sealance]

I tried a psu tester and everything lights up except the -5V led. After checking the atx24 pinout it seems to be correct.

it's leaning towards the cpu or motherboard

 

Edit: -5V is not connected on the ATX24

[Sealance]

So.. it seems it's stable again and i could install windows on a spare ssd.

Heatsink is warmer at the base but temps seem ok.