6. Remove the system board (3) by sliding it up and to the left an angle.
Reverse this procedure to install the system board.
Heat sink
Description Spare part number
Heat sink (includes 4 captive screws and replacement thermal material) 730902-001
Before removing the heat sink, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off 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 battery (see
Battery on page 33), and then remove the following components:
a. Service door (see
Service door on page 34)
b. Hard drive (see
Hard drive on page 35)
c. Display assembly (see
Display assembly on page 46)
d. Bottom cover (see
Bottom cover on page 54)
e. Media card reader board (see
Media card reader board on page 60)
Component replacement procedures 65
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