820-2850 green light. No fan spin.

2informaticos

Administrator
Staff member
Yeah, there is VCORE.
If PLT_RESET_L pulses, then PCH detects that power on sequence is completed.
Could be a problem with GPU, or CPU.
GPU gets voltage pulse too (L8920)?
 

2informaticos

Administrator
Staff member
Probably hopeless project...

Measure diode mode to ground on both side of series capacitors placed on the data lines batween CPU and GPU.
Look at page 74, many caps there...
 
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