Compaq Presario CQ41-200 Compaq Presario CQ41 Notebook PC - Maintenance and S - Page 88

Heat sink/fan assembly or heat sink, Memory module see

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Removal and replacement procedures Heat sink/fan assembly or heat sink Description Heat sink/fan assembly for models with discrete graphics subsystems (includes thermal material) Heat sink for models with UMA graphics subsystems (includes thermal material) Spare part number 591956-001 591957-001 ✎ To properly ventilate the computer, allow at least a 7.6 cm (3 in) 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 heat sink (for models with UMA graphics subsystems) or the heat sink/fan assembly (for models with discrete graphics subsystems): 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 disconnecting the power cord from the AC outlet and then disconnecting the AC adapter from the computer. 4. Remove the battery (see "Battery" on page 4-7). 5. Remove the following components: a. Hard drive (see "Hard drive" on page 4-8) b. Memory module (see "Memory module" on page 4-10) c. RTC battery (see "RTC battery" on page 4-12) d. WLAN module (see "WLAN module" on page 4-14) e. Optical drive (see "Optical drive" on page 4-20) f. Keyboard (see "Keyboard" on page 4-21) g. Keyboard cover (see "Keyboard cover" on page 4-23) h. Speaker assembly (see "Speaker assembly" on page 4-25) i. Display assembly (see "Display assembly" on page 4-27) j. Top cover (see "Top cover" on page 4-35) k. System board (see "System board" on page 4-48) 4-52 Maintenance and Service Guide

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4–52
Maintenance and Service Guide
Removal and replacement procedures
Heat sink/fan assembly or heat sink
✎
To properly ventilate the computer, allow at least a 7.6 cm (3 in) 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 heat sink (for models with UMA graphics subsystems) or the heat sink/fan assembly (for
models with discrete graphics subsystems):
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 disconnecting the power cord from the AC outlet and then
disconnecting the AC adapter from the computer.
4. Remove the battery (see
“Battery” on page 4-7
).
5. Remove the following components:
a.
Hard drive (see
“Hard drive” on page 4-8
)
b.
Memory module (see
“Memory module” on page 4-10
)
c.
RTC battery (see
“RTC battery” on page 4-12
)
d.
WLAN module (see
“WLAN module” on page 4-14
)
e.
Optical drive (see
“Optical drive” on page 4-20
)
f.
Keyboard (see
“Keyboard” on page 4-21
)
g.
Keyboard cover (see
“Keyboard cover” on page 4-23
)
h.
Speaker assembly (see
“Speaker assembly” on page 4-25
)
i.
Display assembly (see
“Display assembly” on page 4-27
)
j.
Top cover (see
“Top cover” on page 4-35
)
k.
System board (see
“System board” on page 4-48
)
Description
Spare part number
Heat sink/fan assembly for models with discrete graphics subsystems (includes thermal material)
591956-001
Heat sink for models with UMA graphics subsystems (includes thermal material)
591957-001