Specifications

Description Spare part number
●
Intel Core i3-4010U processor and 1 GB of discrete graphics memory in touch screen models with
Windows 8 Standard
763752-501
●
Intel Core i3-4010U processor and 1 GB of discrete graphics memory in touch screen models with
Windows 8 Professional
763752-601
●
Intel Core i3-4010U processor and UMA graphics memory in touch screen models without Windows 8
and WWAN
761536-001
●
Intel Core i3-4010U processor and UMA graphics memory in models with Windows 8 Standard and
WWAN
761536-501
●
Intel Core i3-4010U processor and UMA graphics memory in models with Windows 8 Professional and
WWAN
761536-601
●
Intel Core i5-4210U processor and UMA graphics memory in models without Windows 8 and WWAN 761535-001
●
Intel i5-4210U processor and UMA graphics memory in models with Windows 8 Standard and WWAN 761535-501
●
Intel i5-4210U processor and UMA graphics memory in models with Windows 8 Professional and
WWAN
761535-601
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 49).
5. Remove the following components:
●
Keyboard (see
Keyboard on page 55)
●
Top cover (see
Top cover on page 58)
●
WLAN module (see
WLAN module on page 66)
●
Hard drive (see
Hard drive on page 64)
NOTE: 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:
●
Memory module (see
Memory module on page 85)
●
Heat sink assembly (see
Heat sink assembly on page 81)
To remove the system board:
1. Position the computer upright, and then disconnect the following cables from the system board:
(1): Power connector cable
(2): Speaker cable
(3): Fan cable
(4): Display cable
76 Chapter 4 Removal and replacement procedures