Description
For use only with computer models equipped with a dual core processor, the Intel HD6490 graphics
subsystem, 1024-MB of discrete memory, and USB version 2.0
For use only with computer models equipped with a quad core processor, a graphics subsystem with
UMA memory, and USB version 3.0
For use only with computer models equipped with a dual core processor, a graphics subsystem with
UMA memory, and USB version 3.0
For use only with computer models equipped with a dual core processor, a graphics subsystem with
UMA memory, and USB version 2.0
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
●
Optical drive (see
●
Hard drive (see
●
WLAN module (see
●
Keyboard (see
●
Top cover (see
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:
●
RTC battery (see
RTC battery on page
●
Memory module (see
●
Fan and heat sink (see
●
Processor (see
Processor on page
Remove the system board:
1.
Close the computer.
2.
Turn the computer upside down, with the font toward you.
Battery on page
50), and then remove the following components:
Optical drive on page
Hard drive on page
54)
WLAN module on page
Keyboard on page
61)
Top cover on page
65)
56)
Memory module on page
Fan/heat sink assembly on page
86)
51)
58)
57)
82)
Component replacement procedures
Spare part number
641487-001
641491-001
641485-001
641490-001
79