Filter
Top Products
NOTE: To properly ventilate the computer, allow at least a 7.6-cm (3-inch) clearance on the left side
of the computer. The computer uses an electric fan for ventilation. The fan is controlled by a
temperature sensor and is designed to turn on automatically when high temperature conditions exist.
These conditions are affected by high external temperatures, system power consumption, power
management/battery conservation configurations, battery fast charging, and software requirements.
Exhaust air is displaced through the ventilation grill located on the left side of the computer.
Before removing the graphics board heat sink, 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 45).
5. Remove the service access cover (see Service access cover).
6. Remove the optical drive (see
Optical drive on page 58) or upgrade bay hard drive (see Upgrade
bay hard drive on page 60).
7. Remove the keyboard (see
Keyboard on page 65).
8. Remove the top cover (see
Top cover on page 81)
9. Remove the display assembly (see
Display assembly on page 85).
Remove the fan/graphics board heat sink assembly:
1. Disconnect the fan cable (1) from the system board.
2. Following the sequence stamped into the graphics board heat sink, loosen the six Phillips
captive screws (2) that secure the graphics board heat sink/fan assembly to the system board.
Component replacement procedures 69