Description Spare part number
Equipped with an Intel Dual Core i3-3110M 2.40-GHz processor (3.0-MB L3 cache, 1600-MHz
FSB, 35 W), a graphics subsystem with 1-GB of discrete memory, and the Windows 8
Professional operating system
729844-601
Equipped with an Intel Dual Core i3-3110M 2.40-GHz processor (3.0-MB L3 cache, 1600-MHz
FSB, 35 W), a graphics subsystem with 1-GB of discrete memory, and the Windows 8 Standard
operating system
729844-501
Equipped with an Intel Dual Core i3-3110M 2.40-GHz processor (3.0-MB L3 cache, 1600-MHz
FSB, 35 W), a graphics subsystem with 1-GB of discrete memory, and the Linux operating system
729844-001
Equipped with an Intel Dual Core i3-3110M 2.40-GHz processor (3.0-MB L3 cache, 1600-MHz
FSB, 35 W), a graphics subsystem with UMA memory, and the Windows 8 Professional
operating system
729843-601
Equipped with an Intel Dual Core i3-3110M 2.40-GHz processor (3.0-MB L3 cache, 1600-MHz
FSB, 35 W), a graphics subsystem with UMA memory, and the Windows 8 Standard
operating system
729843-501
Equipped with an Intel Dual Core i3-3110M 2.40-GHz processor (3.0-MB L3 cache, 1600-MHz
FSB, 35 W), a graphics subsystem with UMA memory, and the Linux operating system
729843-001
Before removing the system board, follow these steps:
1. Turn off 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the battery (see
Battery on page 46), and then remove the following components:
a. Optical drive (see
Optical drive on page 47)
b. Hard drive (see
Hard drive on page 49)
c. WLAN module (see
WLAN module on page 51)
d. Keyboard (see
Keyboard on page 56)
e. Top cover (see
Top cover on page 60)
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 53)
●
RTC battery (see
RTC battery on page 89)
●
Fan (see
Fan on page 79)
●
Heat sink (see
Heat sink on page 80)
●
Processor (see
Processor on page 85)
76 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts
