HP ZBook 17 Maintenance and Service Guide - Page 86

Heat sink for use with models with discrete graphics memory, Remove the screws in the order shown

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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 service door (see Service door on page 36). 5. Disconnect the battery (see Battery on page 39). Remove the heat sink: Heat sink for use with models with discrete graphics memory 1. Remove the screws in the order shown (1 - 8) and then remove the heat sink (9) from the system board. 72 Chapter 6 Removal and replacement procedures for authorized service provider parts

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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 service door (see
Service door
on page
36
).
5.
Disconnect the battery (see
Battery
on page
39
).
Remove the heat sink:
Heat sink for use with models with discrete graphics memory
1.
Remove the screws in the order shown
(1 – 8)
and then remove the heat sink
(9)
from the system board.
72
Chapter 6
Removal and replacement procedures for authorized service provider parts