fujitsu siemens lifebook e8210 fun not spin, need schematic

[ktmmotocross]

Hello,
have fujitsu siemens lifebook e8210 that not spinning fan when hot, only on start. fan is ok. need schematic to find regulator for fan.

[kotnatan]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

What is the marking of the motherboard platform?

[ktmmotocross]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

dont have board full removed but i found this mark
RS71 S31
K6-04/G
CP286440-Z6
VB258BA

[dj_ricoh]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

How many V you got on yellow wire?

[ktmmotocross]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

How many V you got on yellow wire?

here have not yellow but orange :-)
and have 3,3V on it

[dj_ricoh]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

And red? How many V

[ktmmotocross]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

rising to 2,5V vhen starting and fan start to spin and 0 vhen fan stop

[dj_ricoh]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

Take the fan out and check without all voltage

[ktmmotocross]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

i found switching mosfet for fan and one leg have 5V, second have 4,1V and third leg have 2.98V. to fan is going 2.98V. maybe that mosfet is bad because the voltage to fan slowly rising.

without fan red - 5V and orange 3,3v

[ktmmotocross]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

thats weird,now the fan is spinning. red 2,5V, orange 1.75V

[ktmmotocross]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

now i realy start to think that mosfet is bad. when fan stops, i have 5V on drain, 5V on the base but 0V on source to fan

or maybe its P-channel

when i jump drain to source the fan goes on full speed

marking on the mosfet is A5w98, maybe somebody know what mosfet it is

[ktmmotocross]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

guys i really need that schematic

[dj_ricoh]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

So without fan you got correct voltage.

Putt another fan for test and see voltage again

[ktmmotocross]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

i put one from HP but it not spin, it gives some sound like low voltage for spin

[ktmmotocross]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

i replace the mosfet with some N-channel mosfet and now have 5V on drain, 5V on base and 4,25V on source to fan. its little soundy to me but i asemble it to instal system and check temperatures.

still waiting for help with schematic to be 100% sure its good work.

[hansie55]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

Hopefully this is close enough

[ktmmotocross]

Re: fujitsu siemens lifebook e8210 fun not spin, need schematic

thx a lot man. i know its that damn P-channel

i'll get bac to it when i install system and check everything