[SOLVED]820-3115 fan spin 1sec

aurel476

New member
Board was liquid damage smc area and spi area,

begin no ppbus i replace smc now i have 12.60V, PP3V42_G3H fine

after PPVRTC_G3H pulse, replace U2600 and cleaning area now 3V stable

now fan spin 1 sec and stop loop

already check spi terminaison,

R7402/03 fine

ALL_SYS_PWGD 0V when fan no spin

i noticed pin 6 and 5 when fan spin voltage decrease 1V and up 3V when fan stop (other pin voltage stable)

already checked without SPI diode mod red probe to gnd and black to pins ;)

any idea ?
 
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