820-3787: Not powering up but fan spins/stops/then remains spinning

Have this board, no liquid damage or corrosion found. The fan spins for about 10sec then shuts off, then starts spinning again and remains spinning. The fan then ramps up slowly until it reaches max speed.

Theres no USB activity, only a initial flash of the usb light when connected

Cpu voltage is at max and not ramping down. PPVCC_S0_CPU_REG - 1.8v

Any suggestions


Staff member
What the client said about how fault appeared?

PLT_RESET_L present?
All GPU related voltages present?

Try known good working BIOS.
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