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System board
NOTE:
Description
Intel Atom N450 1.66-GHz processor with 512-KB level 2 cache, 667-MHz FSB
Intel Atom N470 1.83-GHz processor with 512-KB level 2 cache, 667-MHz FSB, 6.5W TDP
Intel Atom N455 1.66-GHz processor with 512-KB level 2 cache, 667-MHz FSB
Intel Atom N475 1.83-GHz processor with 512-KB level 2 cache, 667-MHz FSB, 6.5 TDP
Intel Atom N450 1.66-GHz processor with 512-KB level 2 cache, 667-MHz FSB without WWAN
module
Intel Atom N470 1.83-GHz processor with 512-KB level 2 cache, 667-MHz FSB, 6.5W TDP without
WWAN module
Intel Atom N455 1.66-GHz processor with 512-KB level 2 cache, 667-MHz FSB without WWAN
module
Intel Atom N475 1.83-GHz processor with 512-KB level 2 cache, 667-MHz FSB, 6.5 TDP without
WWAN module
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
5.
Remove the service cover (see
6.
Disconnect the hard drive cable from the system board (see
7.
Disconnect the WWAN antenna cables from the WWAN module (see
on page
8.
Disconnect the WLAN antenna cables from the WLAN module (see
9.
Remove the keyboard (see
10.
Remove the top cover (see
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
●
WWAN module (see
62
Chapter 4 Removal and replacement procedures
The system board spare part kit includes replacement thermal material.
Battery on page
39).
Keyboard on page
Top cover on page
SIM on page
35)
WWAN module on page
34).
Service cover on page
36).
48).
51).
39)
Spare part number
607740-001
607741-001
618873-001
618874-001
621300-001
621301-001
621302-001
621303-001
Hard drive on page
36).
WWAN module
WLAN module on page
42).
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