HP Pavilion dm1-3000 HP Pavilion dm1 Notebook PC - Maintenance and Service Gui - Page 65

System board, When replacing the system board

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System board Description System board: ● E350 system board with WWAN ● E350 system board Spare part number 635314-001 639297-001 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 mode, turn on the computer, and then shut it down using the operating system. 2. Disconnect all of the external devices that are 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 32). 5. Remove the following components: a. Service cover (see Hard drive / Solid state drive on page 33). b. Hard drive (see Hard drive / Solid state drive on page 33). c. Keyboard (see Keyboard on page 43). d. Top cover (see Top cover on page 46). e. Display assembly (see Display assembly on page 52). 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 59). ● Heat sink (see Heat sink assembly on page 60). Remove the system board: To remove the system board, follow these steps: 1. Disconnect the fan cable (1) from the system board. ENWW Component replacement procedures 57

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System board
Description
Spare part number
System board:
●
E350 system board with WWAN
635314-001
●
E350 system board
639297-001
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 mode,
turn on the computer, and then shut it down using the operating system.
2.
Disconnect all of the external devices that are 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
32
).
5.
Remove the following components:
a.
Service cover (see
Hard drive / Solid state drive
on page
33
).
b.
Hard drive (see
Hard drive / Solid state drive
on page
33
).
c.
Keyboard (see
Keyboard
on page
43
).
d.
Top cover (see
Top cover
on page
46
).
e.
Display assembly (see
Display assembly
on page
52
).
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
59
).
●
Heat sink (see
Heat sink assembly
on page
60
).
Remove the system board:
To remove the system board, follow these steps:
1.
Disconnect the fan cable
(1)
from the system board.
ENWW
Component replacement procedures
57