System board

NOTE: The system board spare part kit includes replacement thermal material.

Description

Spare part number

 

 

Intel® Atom™ N455 single-core, 1.66 GHz processor, 512 KB level 2 cache, 667 MHz front-side

650737-001

bus (FSB)

 

 

 

Intel® Atom™ N475 single-core, 1.83 GHz processor, 512 KB level 2 cache, 667 MHz FSB

650738-001

 

 

Intel® Atom™ N570 dual-core 1.66 GHz processor, 1 MB level 2 cache, 667 MHz FSB

650739-001

 

 

Intel® Atom™ N455 single-core 1.66 GHz processor, 512 KB level 2 cache, 667 MHz FSB, XSLOT

650740-001

 

 

Intel® Atom™ N475 single-core, 1.83 GHz processor, 512 KB level 2 cache, 667 MHz FSB,

650741-001

XSLOT

 

 

 

Intel® Atom™ N570 dual-core 1.66 GHz processor, 1 MB level 2 cache, 667 MHz FSB, XSLOT

650742-001

 

 

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 37).

5.Remove the service access cover (see Service access cover on page 38).

6.Disconnect the hard drive cable from the system board (see Hard drive on page 45).

7.Disconnect the WLAN antenna cables from the WLAN module (see WLAN module on page 39).

8.Disconnect the WWAN antenna cables from the WWAN module (see WWAN module on page 41).

9.Remove the keyboard (see Keyboard on page 48).

10.Remove the top cover (see Top cover on page 54).

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:

●WLAN module (see WLAN module on page 39)

●WWAN module (see WWAN module on page 41)

●Memory module (see Memory module on page 43)

●RTC battery (see RTC battery on page 44) Remove the system board:

1.Remove the 2 Phillips PM2.0x5.0 screws (1) that secure the system board to the base enclosure .

2.Starting in the middle of the system board, lift the system board up, and then lift the right side of the system board (2) until it rests at an angle.

Component replacement procedures 61