Manual

Fans
Description Spare part number
CPU fan (includes replacement thermal material) 848377-001
GPU Fan (includes replacement thermal material) (This fan is included as a blank for models with UMA
graphics memory.):
●
For use only with models with discrete graphics memory 848378-001
●
For models with UMA graphics memory 848376-001
Before removing the fans, follow these steps:
1. Turn o the computer. If you are unsure whether the computer is o or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service door (see Service door on page 33).
5. Disconnect the battery (see Battery on page 34).
Remove the fans:
1. Release the fan connection (1) on the CPU fan, and then release the two captive screws (2) securing the
CPU fan to the computer.
2. Release the display cable (3) and remove it from the routing around the fan, and then remove the fan (4)
from the computer.
3. Release the fan connection (1) on the GPU fan, and then release the two captive screws (2) securing the
GPU fan to the computer.
Component replacement procedures 55