HP ProBook 650 Maintenance and Service Guide - Page 71

Fan and heat sink assembly, Disconnect all external devices connected to the computer.

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3. Lift the system board (4), and then remove it (5). Reverse this procedure to install the system board. Fan and heat sink assembly Description Fan and heat sink assembly For 14" products with integrated graphics For 14" products with discrete graphics For 15" products with integrated graphics For 15" products with high-quality integrated graphics For 15" products with discrete graphics Spare part number 840662-001 840663-001 840732-001 840734-001 840733-001 IMPORTANT: Make special note of each screw and screw lock size and location during removal and replacement Before removing the fan and heat sink, follow these steps: 1. Shut down the computer. 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 following components: Component replacement procedures 61

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3.
Lift the system board
(4)
, and then remove it
(5)
.
Reverse this procedure to install the system board.
Fan and heat sink assembly
Description
Spare part number
Fan and heat sink assembly
For 14" products with integrated graphics
840662-001
For 14" products with discrete graphics
840663-001
For 15" products with integrated graphics
840732-001
For 15" products with high-quality integrated graphics
840734-001
For 15" products with discrete graphics
840733-001
IMPORTANT:
Make special note of each screw and screw lock size and location during removal and
replacement
Before removing the fan and heat sink, follow these steps:
1.
Shut down the computer.
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 following components:
Component replacement procedures
61