HP Pavilion dv4-2100 HP Pavilion dv4 Entertainment PC - Maintenance and Servic - Page 92

System board

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Removal and replacement procedures System board Description System board (includes replacement thermal material) UMA graphics subsystems Discrete graphics subsystems Spare part number 590350-001 590349-001 Before removing the system board: 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. Mini Card compartment cover (see "RTC battery" on page 4-12) d. WLAN module (see "WLAN module" on page 4-15) e. Optical drive (see "Optical drive" on page 4-19) f. Keyboard (see "Keyboard" on page 4-20) g. Keyboard cover (see "Keyboard cover" on page 4-23) h. Speaker assembly (see "Speaker assembly" on page 4-26) i. Display assembly (see "Display assembly" on page 4-27) j. Top cover (see "Top cover" on page 4-34) 4-50 Maintenance and Service Guide

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4–50
Maintenance and Service Guide
Removal and replacement procedures
System board
Before removing the system board:
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.
Mini Card compartment cover (see
“RTC battery” on page 4-12
)
d.
WLAN module (see
“WLAN module” on page 4-15
)
e.
Optical drive (see
“Optical drive” on page 4-19
)
f.
Keyboard (see
“Keyboard” on page 4-20
)
g.
Keyboard cover (see
“Keyboard cover” on page 4-23
)
h.
Speaker assembly (see
“Speaker assembly” on page 4-26
)
i.
Display assembly (see
“Display assembly” on page 4-27
)
j.
Top cover (see
“Top cover” on page 4-34
)
Description
Spare part number
System board (includes replacement thermal material)
UMA graphics subsystems
590350-001
Discrete graphics subsystems
590349-001