Disassembly order
For convenience, disassembly procedures should be followed in a particular order. Use the following
table to determine the sequence in which to access major computer components.
Table 5-3 computer component installation
To install/
replace...
Remove... Then
remove...
Then
remove...
Then
remove...
Then
remove...
Battery, front
bezel, optical
drive, hard drive,
memory, power
supply, hood
sensor, or
solenoid lock
Chassis lock Access panel
Heatsink Chassis lock Access panel Airflow guide
Processor Chassis lock Access panel Airflow guide Heatsink
Expansion card
(PCI/PCIe)
Chassis lock Access panel Expansion
card slot
cover
Front panel I/O
assembly, power
button assembly,
system fan, or
system speaker
Chassis lock Access panel Front bezel
System board Chassis lock Access panel Airflow guide Expansion
cards or
DIMMs
Heatsink
Removing the cable lock (optional)
If a cable lock is installed on the computer, remove it before servicing the computer.
ENWW Removing and installing components 69
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