System board
NOTE: The system board spare part kit includes replacement thermal material.
Description Spare part number
Equipped with Intel HM75 Express chipset and for use with computer models equipped with an
Intel Core i5 or i3 processor
687701-001
Equipped with Intel HM70 Express chipset and for use with computer models equipped with an
Intel Pentium or Celeron processor
687702-001
Before removing the system board, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4.
Remove the battery (see
Battery on page 36), and then remove the following components:
a.
Memory module/wireless module compartment cover (see
Memory module on page 37)
b. WLAN module (see
WLAN module on page 38)
c. Keyboard (see
Keyboard on page 40)
d. Optical drive (see
Optical drive on page 44)
e. Hard drive (see
Hard drive on page 46)
f. Top cover (see
Top cover on page 50)
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:
{
Memory module (see
Memory module on page 37)
{
RTC battery (see
RTC battery on page 49)
{
Fan/heat sink assembly (see Fan/heat sink assembly on page 65)
{
Processor (see Processor on page 67)
Component replacement procedures
63
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