HP ZBook 17 manual Graphics board fan/heat sink assembly

Graphics board fan/heat sink assembly

NOTE: The graphics board fan/heat sink assemblies include replacement thermal material.

Description	Spare part number
Fan/heat sink assembly for use in models with the NVIDIA Quadro K5100M graphics card	735373-001
Fan/heat sink assembly for use in models with the NVIDIA Quadro K4100M or K3100M graphics	735374-001
card
Fan/heat sink assembly for use in models with the NVIDIA Quadro K610M graphics card	735375-001

NOTE: To properly ventilate the computer, allow at least a 7.6-cm (3-inch) clearance on the left side of the computer. The computer uses an electric fan for ventilation. The fan is controlled by a temperature sensor and is designed to turn on automatically when high temperature conditions exist. These conditions are affected by high external temperatures, system power consumption, power management/battery conservation configurations, battery fast charging, and software requirements. Exhaust air is displaced through the ventilation grill located on the left side of the computer.

Before removing the graphics board 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 46).

5.Remove the service door (see service door).

6.Remove the optical drive (see Optical drive on page 57) or upgrade bay hard drive (see Upgrade bay hard drive on page 59).

7.Remove the keyboard (see Keyboard on page 63).

8.Remove the top cover (see Top cover on page 72)

Remove the graphics board fan/heat sink assembly:

1.Disconnect the fan cable from the system board (1).

2.If the processor heat sink is still installed and has Mylar tap connecting it to the fan, lift up on the tape to disengage it from the fan.

3.Following the sequence stamped into the graphics board heat sink, loosen the four Phillips captive Torx (2) that secure the graphics board heat sink/fan assembly to the system board.

100 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts