Good evening all,

I'm stuck and would like to request some assistance. I went to power my m14 on after work to study and exactly after 30 seconds, the laptop shuts down. I confirmed that the laptop does post and all lights/fans are operational. There are no beep codes whatsoever. Please see the following troubleshooting steps performed:

 

Unplugged battery and held down power for 30 seconds. Plugged battery back in and powered on - Shuts down after exactly 30 seconds

Unplugged battery and only used AC power - Shuts down after exactly 30 seconds.

Attempted to start in safe mode, diagnostics and bios - Shuts down after exactly 30 seconds

Disassembled entire laptop including optical drive, HDD, RAM, panels, connections to MoBo, and MoBo itself. Reseated all components and powered on - Shuts down after exactly 30 seconds.

Swapped RAM with known working RAM modules, no change.

 

If anyone can shed some light on what should be done, cleaned, reconnected, replaced, etc... I would greatly appreciate it.

Thank you