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System board
NOTE: The system board spare part kit includes replacement thermal material.
Description Spare part number
Intel® Atom™ N455 1.66-GHz processor, 512-KB level 2 cache, 667-MHz front-side bus (FSB) 608951-001
Intel® Atom™ N455 1.66-GHz processor, 512-KB level 2 cache, 667-MHz front-side bus (FSB),
decoder ring, WWAN
608952-001
Intel® Atom™ N455 1.66-GHz processor, 512-KB level 2 cache, 667-MHz front-side bus (FSB),
Broadcom FLEA
608953-001
Intel® Atom™ N455 1.66-GHz processor, 512-KB level 2 cache, 667-MHz front-side bus (FSB),
decoder ring, Broadcom FLEA, WWAN
608954-001
Intel® Atom™ N475 1.83-GHz processor, 512-KB level 2 cache, 667-MHz FSB, 6.5W TDP 608955-001
Intel® Atom™ N475 1.83-GHz processor, 512-KB level 2 cache, 667-MHz FSB, 6.5W TDP,
decoder ring, WWAN
608956-001
Intel® Atom™ N475 1.83-GHz processor, 512-KB level 2 cache, 667-MHz FSB, 6.5W TDP,
Broadcom FLEA
608957-001
Intel® Atom™ N475 1.83-GHz processor, 512-KB level 2 cache, 667-MHz FSB, 6.5W TDP,
decoder ring, Broadcom FLEA, WWAN
608958-001
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 38).
5.
Remove the service cover (see
Service cover on page 40).
6.
Disconnect the hard drive cable from the system board (see
Hard drive on page 43).
7.
Disconnect the WWAN antenna cables from the WWAN module (see
WWAN module
on page 45).
8.
Disconnect the WLAN antenna cables from the WLAN module (see
WLAN module on page 47).
9.
Remove the keyboard (see
Keyboard on page 52).
10.
Remove the top cover (see
Top cover on page 56).
64 Chapter 4 Removal and replacement procedures