Generic Title, No one saw this.

[PigeonGiraffe]

Problem:

Went to turn on PC.  All fans, and lights are on.  No signal to monitor.(Checked cable with console, cable does works) MB is throwing a CPU debug light.  

 

Background:

Built PC 4 month ago.  Had no hiccups with flashing BIOS and updating drivers, since I built my machine. Usually keep my PC in sleep mode over night.

 

Symptoms:

When PC would not produce a signal to monitor.  Notice CPU debug light.  Check CPU 8-Pin.  Notice one pin on my PSU cable extensions was not seated.

 

Treatments:

- Took out CE (Cable extension), used PSU cable.  Restarted system.  CPU debug light.

- Reset CMOS: Unplugged PSU from wall. Took out CMOS battery.  Held power button for 10-15 seconds.  Plug things back together.  Restarted system. CPU debug light.

- Reseated all PSU cables from PSU.  Reseat all PSU cables from hardware, expect SDD.  Restarted system. CPU debug light.

- Changed to a different CPU pin on PSU. CPU1 -> CPU2.  Restarted system. CPU debug light.

- Reseated both RAM stick.  Restarted system. CPU debug light.

- Restarted system with just one RAM stick, then tested with other RAM stick. CPU debug light for each.

- Reseated GPU out of desperation. Restarted system. CPU debug light.

 

Personal Diagnosis:

- PSU cable extensions bricked CPU

- PSU is faulty on CPU output plugs.  

 

Specs:

CPU: Ryzen 7 3700X

MB: Tomahawk B450 Max

RAM: 2 x Corsair Vengeance DDR4 3600MHz 8GBs

GPU: Nivida GeForce RTX 3060TI

PSU: EVGA SuperNova 650+ 80+ Gold, Fully Modular

CABLE EXTENSIONS: Asian Horse

STORAGE: TForce Vulcan 500GB SDD

CASE: Corsair 4000D Airflow.

 

BOIS: XMP turned one, RAM speed set to 3600MHz.  No overclocking except XMP.  

 

Any suggestion on what I do next? Or did that single unseated cable extension pin brink my CPU when I went to turn on my PC a few hours ago?

 

Thanks!