HP ProBook 4740s HP ProBook 4740s Notebook PC - Maintenance and Service Guide - Page 71

System board, Remove the following components

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4. Lift the battery cable from the computer (3). Reverse this procedure to install the battery cable. System board NOTE: All system board spare part kits include replacement thermal material. Description System board for use in models with 1-GB of discrete graphics memory System board for use in models with 2-GB of discrete graphics memory System board for use in Japan in models with 1-GB of discrete graphics memory Spare part number 683493-001 683494-001 696336-001 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 33). 5. Remove the following components: a. Bottom door (see Bottom door on page 34). b. Hard drive (see Hard drive on page 38) c. Optical drive (see Optical drive on page 36) d. Keyboard (see Keyboard on page 45) Component replacement procedures 63

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4.
Lift the battery cable from the computer
(3)
.
Reverse this procedure to install the battery cable.
System board
NOTE:
All system board spare part kits include replacement thermal material.
Description
Spare part number
System board for use in models with 1-GB of discrete graphics memory
683493-001
System board for use in models with 2-GB of discrete graphics memory
683494-001
System board for use in Japan in models with 1-GB of discrete graphics memory
696336-001
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
33
).
5.
Remove the following components:
a.
Bottom door (see
Bottom door
on page
34
).
b.
Hard drive (see
Hard drive
on page
38
)
c.
Optical drive (see
Optical drive
on page
36
)
d.
Keyboard (see
Keyboard
on page
45
)
Component replacement procedures
63