"Obviously missing PM_SLP_S4_L"
Not true.
It pulses at least, if fan spins...
The fan needs 5V_S0.
"All_SYS_PWRGD - 2.57V When fan spins."
That means all the secondary coils pulse too; maybe not the CPU ones, check that.
Check U1950 area.
Pins 7 & 3 pulsing too?
Not true.
It pulses at least, if fan spins...
The fan needs 5V_S0.
"All_SYS_PWRGD - 2.57V When fan spins."
That means all the secondary coils pulse too; maybe not the CPU ones, check that.
Check U1950 area.
Pins 7 & 3 pulsing too?