HP G72-b66US HP G72 Notebook PC - Maintenance and Service Guide - Page 85

System board, Remove the battery see - graphics card

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System board NOTE: The system board spare part kit includes UMA or discrete graphics subsystem memory and replacement thermal material. Description HD 5430/1 G discrete system board with card reader 1.1 (for model 1.1 only) HD 5430/512 MB discrete system board with card reader 1.1 (for model 1.1 only) HD 5430/512 MB discrete system board with card reader (for model 1.0 only) HD 5430/1 G discrete system board with card reader (for model 1.0 only) HD UMA system board with card reader (for model 1.2 only) HD 1G discrete system board with card reader (for model 1.2 only) HD 512 MB discrete system board with card reader (for model 1.2 only) HD UMA system board with card reader (for model 1.2 only) Spare part number 615847-001 615848-001 629120-001 629121-001 629122-001 630948-001 630949-001 630950-001 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: ● RTC battery (see RTC battery on page 52) ● Memory modules (see Memory module on page 51) ● WLAN module (see WLAN module on page 48) ● Modem module (see Modem module on page 63) Before removing the system board: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn on the computer, 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 42). 5. Remove the following components: a. Hard drive (see Hard drive on page 43) b. Optical drive (see Optical drive on page 46) c. WLAN module (see WLAN module on page 48) d. Memory module (see Memory module on page 51) e. RTC battery (see RTC battery on page 52) f. Keyboard (see Keyboard on page 54) g. Top cover (see Top cover on page 57) ENWW Component replacement procedures 75

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System board
NOTE:
The system board spare part kit includes UMA or discrete graphics subsystem memory and
replacement thermal material.
Description
Spare part number
HD 5430/1 G discrete system board with card reader 1.1 (for model 1.1 only)
615847-001
HD 5430/512 MB discrete system board with card reader 1.1 (for model 1.1 only)
615848-001
HD 5430/512 MB discrete system board with card reader (for model 1.0 only)
629120-001
HD 5430/1 G discrete system board with card reader (for model 1.0 only)
629121-001
HD UMA system board with card reader (for model 1.2 only)
629122-001
HD 1G discrete system board with card reader (for model 1.2 only)
630948-001
HD 512 MB discrete system board with card reader (for model 1.2 only)
630949-001
HD UMA system board with card reader (for model 1.2 only)
630950-001
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:
●
RTC battery (see
RTC battery
on page
52
)
●
Memory modules (see
Memory module
on page
51
)
●
WLAN module (see
WLAN module
on page
48
)
●
Modem module (see
Modem module
on page
63
)
Before removing the system board:
1.
Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn on
the computer, 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
42
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
43
)
b.
Optical drive (see
Optical drive
on page
46
)
c.
WLAN module (see
WLAN module
on page
48
)
d.
Memory module (see
Memory module
on page
51
)
e.
RTC battery (see
RTC battery
on page
52
)
f.
Keyboard (see
Keyboard
on page
54
)
g.
Top cover (see
Top cover
on page
57
)
ENWW
Component replacement procedures
75