3.
Remove the heat sink
(2)
.
NOTE:
The thermal material must be thoroughly cleaned from the surfaces of the heat sink
(1)
,
(2)
, and
(3)
, and the system board components
(4)
,
(5)
, and
(6)
each time the heat sink is removed.
Thermal pads and thermal paste must be installed on all surfaces before the heat sink assembly
is reinstalled. Replacement thermal material is included with all heat sink, system board, and
processor spare part kits.
NOTE:
Steps 4 and 5 apply only to computer models equipped with graphics subsystems with
UMA memory.
4.
Following the 1, 2, 3, 4, sequence stamped into the heat sink, loosen the four Phillips PM2.5×10.0
screws
(1)
that secure the heat sink to the system board.
72
Chapter 4 Removal and replacement procedures
Содержание 540 - Notebook PC
Страница 1: ...HP 540 Notebook PC HP 541 Notebook PC Maintenance and Service Guide ...
Страница 4: ...iv MSG revision history ...
Страница 6: ...vi Safety warning notice ...
Страница 25: ...Computer major components Computer major components 15 ...
Страница 115: ...Where used 2 screws that secure the top cover to the base enclosure Slotted Torx ST8M2 5 7 0 screw 105 ...
Страница 136: ...RJ 11 modem Pin Signal 1 Unused 2 Tip 3 Ring 4 Unused 5 Unused 6 Unused 126 Chapter 9 Connector pin assignments ...
Страница 150: ......