HP 255 G7, Maintenance And Service Manual

Page: 59 / 105

Heat sink assembly
Table 6-13 Spare part description and number
Description Spare part number
Heat sink for use in models with AMD Ryzen processors and integrated UMA graphics L20483-001
Heat sink for use in models with AMD A6/A9 processors and integrated UMA graphics L20491-001
Heat plate for use in fanless models with AMD E2-9000e processors L20494-001
Before removing the heat sink, follow these steps:
1. Prepare the computer for disassembly ( Preparation for disassembly on page 27 ).
2. Remove the optical drive (see Optical drive on page 28 ).
3. Remove the bottom cover (see Bottom cover on page 31 ).
4. Remove the battery (see Battery on page 33 ).
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 49