System board
NOTE: The system board spare part kit includes replacement thermal material.
Replacement thermal material is also available in the Thermal Material Kit, spare part numbers
650277-001 (for use only with computer models equipped with an AMD processor) and 646135-001
(for use only with computer models equipped with an Intel processor).
Description Spare part number
For use only with computer models equipped with an AMD E450 1.65-GHz processor (dual core,
18 W) and a graphics subsystem with UMA video memory
657323-001
For use only with computer models equipped with an AMD E300 1.30-GHz processor (dual core,
18 W) and a graphics subsystem with UMA video memory
657324-001
For use only with computer models equipped with an AMD E240 1.50-GHz processor (single core,
18 W) and a graphics subsystem with UMA video memory
647322-001
System board for use only with computer models equipped with an Intel Core i5 or i3 processor and
a graphics subsystem with discrete video memory
646179-001
System board for use only with computer models equipped with an Intel Core i5 or i3 processor and
a graphics subsystem with UMA video memory
646177-001
For use only with computer models equipped with an Intel Pentium processor and a graphics
subsystem with discrete video memory
646176-001
For use only with computer models equipped with an Intel Pentium processor and a graphics
subsystem with UMA video memory
646175-001
For use only with computer models equipped with an Intel Celeron processor and a graphics
subsystem with UMA video memory
646174-001
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 WLAN module (see
WLAN module on page 42).
6. Disconnect the hard drive connector cable from the system board (see
Hard drive on page 46).
7. Remove the following components:
●
Keyboard (see
Keyboard on page 51)
●
Top cover (see
Top cover on page 54)
●
Speakers (see
Speakers on page 61)
●
USB board (see
USB board on page 63)
Component replacement procedures 73
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