Manual

2. Remove the screw (3) securing the board to the computer, and then remove the display LED board (4).
Reverse this procedure to install the display LED board.
Heat sink
Description Spare part number
Heat sink for use only with models with NVIDIA N16P discrete graphics memory 850109-001
Heat sink for use only with models with NVIDIA N16E discrete graphics memory 850110-001
Heat sink for use only with models with AMD Strato XT GL discrete graphics memory 850111-001
Heat sink for use only with models with UMA graphics memory 850112-001
Before removing the heat sink, 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 heat sink:
Heat sink for use with models with discrete graphics memory
1. Remove the screws in the order shown (1 – 8) and then remove the heat sink (9) from the system board.
58 Chapter 6 Removal and replacement procedures for authorized service provider parts