HP Pro Tower 400 G9 PCI Desktop PC Maintenance and Service Guide - Page 44

Fan, Serial port, To remove serial port, use these procedures.

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Fan To remove the fan, use these procedures. Before removing the fan, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 19). 2. Remove the access panel (see Access panel on page 19). Remove the fan: 1. Disconnect the fan cable from the system board (1). 2. Remove the three silver Phillips screws (2) that secure the fan to the rear of chassis. 3. Lift the fan out of the chassis (3). To install the fan, reverse the removal procedure. Serial port To remove serial port, use these procedures. Before replacing the serial port, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 19). 2. Remove the access panel (see Access panel on page 19). To replace the serial port: 1. Disconnect the serial port cable from the system board (1). 2. Remove the two screws from the rear of the computer (2). Fan 37

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Fan
To remove the fan, use these procedures.
Before removing the fan, follow these steps:
1.
Prepare the computer for disassembly (see
Preparation for disassembly
on page
19
).
2.
Remove the access panel (see
Access panel
on page
19
).
Remove the fan:
1.
Disconnect the fan cable from the system board
(1)
.
2.
Remove the three silver Phillips screws
(2)
that secure the fan to the rear of chassis.
3.
Lift the fan out of the chassis
(3)
.
To install the fan, reverse the removal procedure.
Serial port
To remove serial port, use these procedures.
Before replacing the serial port, follow these steps:
1.
Prepare the computer for disassembly (see
Preparation for disassembly
on page
19
).
2.
Remove the access panel (see
Access panel
on page
19
).
To replace the serial port:
1.
Disconnect the serial port cable from the system board
(1)
.
2.
Remove the two screws from the rear of the computer
(2)
.
Fan
37