hi
i have hp omen gaming laptop
the fan not spining and i have 90b error
on fan connector
pin 1 =gnd
pin2(fan signal)=3.3v
pin3(+12fan)=12v
pin4(pwm)=0.12v
pin4 goes straight to kbc
is that the kbc is faulty
i try to inject 1.2v on pin4 the fan start spining but full speed
any idea to bypass pin4
i have hp omen gaming laptop
the fan not spining and i have 90b error
on fan connector
pin 1 =gnd
pin2(fan signal)=3.3v
pin3(+12fan)=12v
pin4(pwm)=0.12v
pin4 goes straight to kbc
is that the kbc is faulty
i try to inject 1.2v on pin4 the fan start spining but full speed
any idea to bypass pin4