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Versione corrente di: lemerise ,

Testo:

First remove the top case and power up the macbook via the two power pads on the logic board and check if the fan is running. If so check the fan intake to see if it's clogged with dust.
 
If the fan is not running and you have a multimeter, power off the macbook, detach the fan connector from its socket, power on the macbook via the pads, settle your multimeter to DCV/20, black probe on any logic board screw for ground and red probe to test each fan connectorsocket pin. You should get 5V on one of the pins. If you don't have this reading then the logic board is faulty otherwise the fan should be replaced. Be careful to not touch two pins at the same time with the red probe.
If the fan is not running and you have a multimeter, power off the macbook, detach the fan connector from its socket, power on the macbook via the pads, settle your multimeter to DCV/20, black probe on any logic board screw for ground and red probe to test each fan connectorsocket pin. You should get 5V on one of the pins. If you don't have this reading then the logic board is faulty otherwise the fan should be replaced. Be careful to not touch two pins at the same time with the red probe.

Stato:

open

Post originale di: lemerise ,

Testo:

First remove the top case and power up the macbook via the two power pads on the logic board and check if the fan is running. If so check the fan intake to see if it's clogged with dust.

If the fan is not running and you have a multimeter, power off the macbook, detach the fan connector from its socket, power on the macbook via the pads, settle your multimeter to DCV/20, black probe on any logic board screw for ground and red probe to test each fan connector pin. You should get 5V on one of the pins. If you don't have this reading then the logic board is faulty otherwise the fan should be replaced. Be careful to not touch two pins at the same time with the red probe.

Stato:

open