HP 5103 manual System board, Fsb

System board

Description	Spare part number
System board (includes processor and replacement thermal material)
● Includes Intel Atom N455 1.66-GHz processor, 512-KB Level 2 cache, 667-MHz front-side bus	625687-001
(FSB)
● Includes Intel Atom N475 1.83-GHz processor, 512-KB Level 2 cache, 667-MHz front-side bus	625688-001
(FSB) for use in the People's Republic of China
● Includes Intel Atom N550 1.50-GHz processor, 512-KB Level 2 cache, 667-MHz front-side bus	625689-001
(FSB)
● Includes Intel Atom N455 1.66-GHz processor, 512-KB Level 2 cache, 667-MHz front-side bus	626582-001
(FSB) for use in the People's Republic of China and Russia
● Includes Intel Atom N475 1.83-GHz processor, 512-KB Level 2 cache, 667-MHz front-side bus	626583–001
(FSB) for use in the People's Republic of China and Russia
● Includes Intel Atom N550 1.50-GHz processor, 512-KB Level 2 cache, 667-MHz front-side bus	626584–001
(FSB) for use in the People's Republic of China and Russia

Before removing the system board:

1.Shut down the device. If you are unsure whether the device is off or in Hibernation, turn the device on, and then shut it down through the operating system.

2.Disconnect all external devices connected to the device.

3.Disconnect the power from the device by first disconnecting the power cord from the AC outlet and then disconnecting the AC adapter from the device.

4.Remove the battery (see Battery on page 38).

5.If your device has WWAN capability, remove the SIM (see SIM on page 39).

6.Remove the following components:

a.Keyboard (see Keyboard on page 43)

b.Hard drive (see Mass storage devices on page 50)

c.Top cover (see Top cover on page 56)

d.Display assembly (see Display assembly on page 65)

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 53)

●WWAN module, if included (see WWAN module on page 60)

●Bluetooth module (see Bluetooth module on page 63)

74 Chapter 4 Removal and replacement procedures