HP EliteBook 8560p, Руководство по техническому обслуживанию и ремонту

Страница: 97 / 164

Heat sink
All heat sink spare part kits include replacement thermal material, including thermal grease and pads.
Description Spare part number
Heat sink for use in computers with UMA graphics 647603-001
Heat sink for use in computers with discrete graphics 647604-001
Before removing the heat sink, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,
and then unplugging the AC adapter from the computer.
4. Remove the battery (see Battery on page 60 ).
5. Remove the bottom door (see Bottom door on page 66 ).
6. Remove the fan (see Fan on page 87 ).
Remove the heat sink:
1. Position the computer upside-down with the front toward you.
2. In the order indicated, loosen the captive Phillips screws (1) that secure the heat sink to the system
board. Both the UMA and discrete heat sinks have four screws and are illustrated below.
3. Lift the heat sink up at an angle (2) .
Component replacement procedures
89