HP Stream 11-aa000 Maintenance and Service Guide - Page 58

Heat sink, that secure the heat sink to the system board.

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Heat sink Description Heat sink for use in models with on-board system memory (includes replacement thermal material) Heat sink for use in models with SODIMMs (includes replacement thermal material) Spare part number 910302-001 910158-001 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 bottom cover (see Bottom cover on page 28). 5. Disconnect the battery cable from the system board (see Battery on page 30). Remove the heat sink: 1. Remove the four Phillips PM2.0×3.3 screws (1) that secure the heat sink to the system board. 2. Remove the heat sink (2). NOTE: The thermal material must be thoroughly cleaned from the surfaces of the heat sink and the system board each time the heat sink is removed. Thermal material is used on the processor (1) and the heat sink section (2) that services it. 50 Chapter 5 Removal and replacement procedures

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Heat sink
Description
Spare part number
Heat sink for use in models with on-board system memory (includes replacement thermal material)
910302-001
Heat sink for use in models with SODIMMs (includes replacement thermal material)
910158-001
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 bottom cover (see
Bottom cover
on page
28
).
5.
Disconnect the battery cable from the system board (see
Battery
on page
30
).
Remove the heat sink:
1.
Remove the four Phillips PM2.0×3.3 screws
(1)
that secure the heat sink to the system board.
2.
Remove the heat sink
(2)
.
NOTE:
The thermal material must be thoroughly cleaned from the surfaces of the heat sink and the system
board each time the heat sink is removed.
Thermal material is used on the processor
(1)
and the heat sink section
(2)
that services it.
50
Chapter 5
Removal and replacement procedures