Specifications

System board
NOTE: All system board spare part kits include the ExpressCard assembly.
NOTE: All system board spare part kits include replacement thermal material.
Description Spare part number
System board for use in computers with DDR2 memory (includes replacement thermal material
and the ExpressCard assembly)
574508-001
System board for use in computers with DDR3 memory (includes replacement thermal material
and the ExpressCard assembly)
583077-001
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 42).
5. Remove the following components:
a. Switch cover and keyboard (see
Switch cover and keyboard on page 43)
b. Memory module (see
Memory module on page 46)
c. Optical drive (see
Optical drive on page 48)
d. Speakers (see
Speakers on page 50)
e. Palm rest (see
Palm rest on page 51)
f. Hard drive (see
Hard drive on page 53)
g. Display assembly (see
Display assembly on page 60)
h. Top cover (see
Top cover on page 66)
When replacing the system board, be sure that the following components are removed or
disconnected from the defective system board and installed on the replacement system board:
●
USB connector module cable (see
USB connector module on page 71)
●
Bluetooth module cable (see
Bluetooth module on page 55)
●
WLAN module cable (see
WLAN module on page 56)
●
RTC battery (see
RTC battery on page 73)
●
Heat sink and fan (see
Heat sink and fan on page 75)
Component replacement procedures 81