Specifications

Description Spare part number
●
Windows 8 Standard 747149-501
System board for use only in models with an AMD A4-5000 processor and discrete graphics:
●
Without Windows 8 747151-001
●
Windows 8 Standard 747151-501
System board for use only in models with an AMD E2-3800 processor and discrete graphics:
●
Without Windows 8 748452-001
●
Windows 8 Standard 748452-501
System board for use only in models with an AMD E1-2100 processor and discrete graphics:
●
Without Windows 8 747152-001
●
Windows 8 Standard 747152-501
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:
●
Service door (see
Service door on page 56)
●
Top cover (see
Top cover/keyboard on page 62)
6. Disconnect the display cable from the system board (see
Display assembly on page 71).
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:
●
WLAN module (see
WLAN module on page 59)
●
Memory module (see
Memory module on page 61)
●
RTC battery (see
RTC battery on page 104)
●
Fan/heat sink assembly (see
Fan/heat sink assembly on page 90)
●
Processor (Intel only; see
Processor on page 97)
NOTE: AMD processors come soldered to the system board and cannot be removed or replaced.
86 Chapter 4 Removal and replacement procedures