HP (Hewlett-Packard) 8570w ユーザーズマニュアル

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Fan and heat sink assembly
Description
Spare part number
Fan and heat sink assembly for use in computers with AMD FirePro M4000 graphics cards
690628-001
Fan and heat sink assembly for use in computers with NVIDIA Quadro K2000M graphics cards
690630-001
Fan and heat sink assembly for use in computers with NVIDIA Quadro K1000M graphics cards
690629-001
Before removing the fan and heat sink assembly, follow these steps:
IMPORTANT:
Make special note of each screw and screw lock size and location during removal
and replacement.
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 
5.
Remove the service door (see 
6.
Remove the following components:
b. Upgrade bay device (see 
).
c.
Keyboard (see 
d. Top cover (see 
Remove the fan and heat sink assembly:
1.
Position the computer right-side up, with the front toward you.
2.
Disconnect the fan cable (1) from the system board.
3.
Loosen the eight captive screws (2) that secure the video card heat sink to the base enclosure
following the sequence embossed in the heat sinks.
Component replacement procedures
89