HP ZBook 15 G2 Mobile Workstation Maintenance and Service Guide

Fan/heat sink assembly
NOTE: The fan/heat sink assembly spare part kit includes replacement thermal material.
Description Spare part number
For use only with an NVIDIA Quadro K1100M NVIDIA N15P-Q1 graphics board, spare part number
785223-001
734289-001
For use only with an NVIDIA Quadro K610M NVIDIA N15M-Q2 graphics board, spare part number
785225-001
734290-001
For use only with an NVIDIA Quadro K2100M NVIDIA N15P-Q3 graphics board, spare part number
785224-001
734291-001
For use only with an AMD FirePro M5100 graphics board, spare part number 784470-001 784469-001
Before removing the fan/heat sink assembly, follow these steps:
1. Turn o the computer. If you are unsure whether the computer is o 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 battery (see Battery on page 37), and then remove the following components:
a. Service cover (see Service cover on page 38)
b. Hard drive (see Hard drive on page 39)
c. Optical drive (see Optical drive on page 41)
d. Keyboard (see Keyboard on page 50)
e. Top cover (see Top cover on page 58)
Remove the fan/heat sink assembly:
1. Disconnect the fan cable (1) from the system board.
2. Following the 1 through 4 sequence stamped into the processor heat sink, loosen the four Phillips
captive screws (2) that secure the processor heat sink to the system board.
3. Following the 5 through 8 sequence stamped into the graphics board heat sink, loosen the four Phillips
captive screws (3) that secure the graphics board heat sink to the system board.
74 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts