HP Dv7-2170us HP Pavilion dv7 Entertainment PC - Maintenance and Service Guide - Page 83

System board, Bluetooth module see

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Removal and replacement procedures System board ✎ All system board spare kits include replacement thermal material. Description With discrete graphics subsystem and 1 GB of dedicated memory With discrete graphics subsystem and 512 MB of dedicated memory With UMA graphics subsystem and shared memory Spare part number 574680-001 574681-001 574679-001 Before removing the system board, 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. Primary and secondary hard drive covers (see "Hard drive covers" on page 4-9) b. Primary and secondary hard drives (see "Hard drive" on page 4-12) c. Optical drive (see "Optical drive" on page 4-8) d. Memory module (see "Memory module" on page 4-14) e. WLAN module (see "WLAN module" on page 4-15) f. Switch cover and keyboard (see "Switch cover and keyboard" on page 4-21) g. Speaker assembly (see "Speaker assembly" on page 4-26) h. Bluetooth module (see "Bluetooth module" on page 4-27) i. Display assembly (see "Display assembly" on page 4-28) j. Top cover (see "Top cover" on page 4-37) When replacing the system board, be sure that the following components are removed from the defective system board and installed on the replacement system board: ■ TV tuner module (see "TV tuner module" on page 4-20) ■ RTC battery (see "RTC battery" on page 4-19) ■ Memory modules (see "Memory module" on page 4-14) ■ WLAN module (see "WLAN module" on page 4-15) ■ Bluetooth module (see "Bluetooth module" on page 4-27) ■ Modem module (see "Modem module" on page 4-43) ■ Fan/heat sink assembly (see "Fan/heat sink assembly" on page 4-51) ■ Processor (see "Processor" on page 4-54) 4-40 Maintenance and Service Guide

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4–40
Maintenance and Service Guide
Removal and replacement procedures
System board
✎
All system board spare kits include replacement thermal material.
Before removing the system board, 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.
Primary and secondary hard drive covers (see
“Hard drive covers” on page 4-9
)
b.
Primary and secondary hard drives (see
“Hard drive” on page 4-12
)
c.
Optical drive (see
“Optical drive” on page 4-8
)
d.
Memory module (see
“Memory module” on page 4-14
)
e.
WLAN module (see
“WLAN module” on page 4-15
)
f.
Switch cover and keyboard (see
“Switch cover and keyboard” on page 4-21
)
g.
Speaker assembly (see
“Speaker assembly” on page 4-26
)
h.
Bluetooth module (see
“Bluetooth module” on page 4-27
)
i.
Display assembly (see
“Display assembly” on page 4-28
)
j.
Top cover (see
“Top cover” on page 4-37
)
When replacing the system board, be sure that the following components are removed from the defective system
board and installed on the replacement system board:
■
TV tuner module (see
“TV tuner module” on page 4-20)
■
RTC battery (see
“RTC battery” on page 4-19
)
■
Memory modules (see
“Memory module” on page 4-14
)
■
WLAN module (see
“WLAN module” on page 4-15
)
■
Bluetooth module (see
“Bluetooth module” on page 4-27
)
■
Modem module (see
“Modem module” on page 4-43
)
■
Fan/heat sink assembly (see
“Fan/heat sink assembly” on page 4-51
)
■
Processor (see
“Processor” on page 4-54
)
Description
Spare part number
With discrete graphics subsystem and 1 GB of dedicated memory
574680-001
With discrete graphics subsystem and 512 MB of dedicated memory
574681-001
With UMA graphics subsystem and shared memory
574679-001