Heat sink assembly
Description Spare part number
Heat sink for use in models with Intel Core processors and integrated UMA graphics L20469-001
Heat sink for use in models with Intel Core processors and discrete graphics L20470-001
Heat plate for use in fanless models with UMA graphics and an Intel Pentium or Celeron processor L20472-001
Heat sink for use in models with an Intel Pentium or Celeron processor and discrete graphics L20471-001
Before removing the heat sink, follow these steps:
1. Shut down the computer.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.
4. Remove the optical drive (see Optical drive on page 33).
5. Remove the bottom cover (see Bottom cover on page 37).
6. Remove the battery (see Battery on page 40).
To remove the heat sink assembly from products with integrated UMA graphics:
1. In the order indicated on the heat sink assembly, remove the four Phillips M2.0×3.0 screws (1) that
secure the heat sink to the computer.
2. Lift the heat sink assembly from the computer (2).
Component replacement procedures 57
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