Compaq Presario CQ20-400 Compaq Presario CQ20 Notebook PC - Maintenance and Se - Page 77

System board see

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Removal and replacement procedures Before removing the processor, 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 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. WLAN module (see "WLAN module" on page 4-12) d. Optical drive (see "Optical drive" on page 4-14) e. Keyboard (see "Keyboard" on page 4-16) f. Top cover (see "Top cover" on page 4-18) g. Audio board (see "Audio board" on page 4-30) h. Fan (see "Fan" on page 4-32) i. System board (see "System board" on page 4-34) j. Heat sink (see "Heat sink" on page 4-42) Maintenance and Service Guide 4-45

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Removal and replacement procedures
Maintenance and Service Guide
4–45
Before removing the processor, 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 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.
WLAN module (see
“WLAN module” on page 4-12
)
d.
Optical drive (see
“Optical drive” on page 4-14
)
e.
Keyboard (see
“Keyboard” on page 4-16
)
f.
Top cover (see
“Top cover” on page 4-18
)
g.
Audio board (see
“Audio board” on page 4-30
)
h.
Fan (see
“Fan” on page 4-32
)
i.
System board (see
“System board” on page 4-34
)
j.
Heat sink (see
“Heat sink” on page 4-42
)