HP 110c-1100DX, 110c-1150EB, 110c-1130EK, 110c-1147NR, 110c-1105DX manual System board

System board

Description	Spare part number
System board (includes processor and replacement thermal material)
Includes Intel Atom N280 1.66-GHz processor, 512-KB Level 2 cache, 533-MHz front-side bus (FSB)	571370-001
For use on the following model numbers only: HP: 110-1000 — 110-1099 and Compaq: 110c-1000
— 110-1099
Includes Intel Atom N270 1.6-GHz processor, 512-KB Level 2 cache, 533-MHz front-side bus (FSB)	537662-001
For use on the following model numbers only: HP: 110-1000 — 110-1099 and Compaq: 110c-1000
— 110-1099
Includes Intel Atom N280 1.66-GHz processor, 512-KB Level 2 cache, 533-MHz front-side bus (FSB)	579569-001
For use on the following model numbers only: HP: 110-1100 — 110-1199 and Compaq: 110c-1100
— 110-1199
Includes Intel Atom N270 1.6-GHz processor, 512-KB Level 2 cache, 533-MHz front-side bus (FSB)	579568-001
For use on the following model numbers only: HP: 110-1100 — 110-1199 and Compaq: 110c-1100
— 110-1199

Before removing the system board, follow these steps:

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 unplugging the power cord from the AC outlet and then unplugging the AC adapter from the device.

4.Remove the battery (see Battery on page 44).

5.If your device has WWAN capability, remove the SIM (see SIM on page 45).

6.Remove the following components:

a.Keyboard (see Keyboard on page 48)

b.Hard drive or solid-state drive (see Mass storage devices on page 54)

c.Top cover (see Top cover on page 57)

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 60)

●WWAN module, if included (see WWAN module on page 62)

●RTC battery (see RTC battery on page 53)

●Heat sink assembly (see Heat sink assembly on page 70)

72 Chapter 4 Removal and replacement procedures