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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 41).
5. Remove the following components:
a. Switch cover and keyboard (see
Switch cover and keyboard on page 42)
b. Memory module (see
Memory module on page 45)
c. Optical drive (see
Optical drive on page 47)
d. Speakers (see
Speakers on page 49)
e. Palm rest (see
Palm rest on page 50)
f. Hard drive (see
Hard drive on page 52)
g. Display assembly (see
Display assembly on page 59)
h. Top cover (see
Top cover on page 65)
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 70)
●
Bluetooth module cable (see
Bluetooth module on page 54)
●
WLAN module cable (see
WLAN module on page 55)
●
RTC battery (see
RTC battery on page 72)
●
Heat sink and fan (see
Heat sink and fan on page 74)
●
RJ-45 (network) cable (see
RJ-45 (network) jack on page 76)
●
Processor (see
Processor on page 78)
80 Chapter 4 Removal and replacement procedures