HP (Hewlett-Packard) BJ840USABA Laptop User Manual


 
Fan
Description Spare part number
Fan 487436-001
Before removing the fan, 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 50).
5. Remove the keyboard (see
Keyboard on page 65).
6. Remove the switch cover (see
Switch cover on page 74).
Remove the fan:
1. Disconnect the fan cable (1) from the system board.
2. Remove the Phillips PM2.5×7.0 screw (2) that secures the fan to the base enclosure.
3.
Lift the front edge of the fan (3) until it rests at an angle.
4.
Remove the fan (4) by sliding it forward at an angle.
Reverse this procedure to install the fan.
NOTE: To properly ventilate the computer, allow at least a 7.6-cm (3-inch) clearance on the left side
of the computer.
Component replacement procedures
77