[SOLVED] [Solved] Window box dies 3-4 seconds after turning on

[thai_rat]

While using my windows 10 computer it abruptly died.
Upon reboot, internal leds light briefly on and fan spins, then stops no beeps.

I disconnected:

• all usb devices
• all external cables

Try restart, same behavior

Vacuumed and reset cmos, still misbehaving!

unplug all ram

restart​

same behavior

Unplug all cables from power supply

fans stay on​

Seems ok

Plug in fat ATX cable and restart

seems ok​

​

Plug in small 12v ATX cable

Computer dies again​

​

It appears the crash is related to the ATX 12v cable or destination

So what can cause this?

• a faulty power supply,
• mobo,
• or CPU?

How to proceed, I dont have spare parts?

Help or suggestions appreciated.

 

[thai_rat]

Found another power supply,

made no difference with different power supply.

Cleaned big dust ball off cpu vanes, but computer dies before it could heat up, after about 3- 4 seconds.

Computer was doing heavy graphics crunching when it died cpu would have been at 100%.
DxO processing photo conversion and noise reduction in batch mode when it died, with no warning.

 

[thai_rat]

Solved:

On/Off button was sticking. Why it turned off while already on?

Gremlins holding the button down!

 

[Turtle Rig]

Solved:

On/Off button was sticking. Why it turned off while already on?

Gremlins holding the button down!

That is funny heheh. Glad to hear everything is ok my friend.