System board
NOTE: The system board spare part kit includes replacement thermal material.
Description Spare part number
For use only on computer models equipped with an Intel Atom N2800 1.86-GHz processor and
WWAN capability (1.0-MB L2 cache, dual core, 6.5 W)
676912-001
For use only on computer models equipped with an Intel Atom N2800 1.86-GHz processor, but
not WWAN capability (1.0-MB L2 cache, dual core, 6.5 W)
676911-001
For use only on computer models equipped with an Intel Atom N2600 1.60-GHz processor and
WWAN capability (1.0-MB L2 cache, dual core, 3.5 W)
676910-001
For use only on computer models equipped with an Intel Atom N2600 1.60-GHz processor, but
not WWAN capability (1.0-MB L2 cache, dual core, 3.5 W)
676909-001
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 34), and then remove the following components:
{
Service cover (see
WLAN module on page 36)
{
Hard drive (see
Hard drive on page 43)
{
Keyboard (see
Keyboard on page 45)
{
Top cover (see
Top cover on page 48)
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:
{
SIM (see
SIM (select models only) on page 35)
{
WLAN module (see
WLAN module on page 36)
{
WWAN module (see WWAN module on page 39)
{
RTC battery (see RTC battery on page 42)
{
Memory module (see Memory module on page 41)
{
Power connector cable (see System board on page 55)
{
Fan (see Fan on page 58)
{
Heat sink (see
Heat sink on page 60)
Component replacement procedures
55
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