System information

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 41), and then remove the following components:
a. Service door (see
Service door on page 42)
b. mSATA SSD (see
mSATA SSD on page 43)
c. Hard drive (see
Hard drive on page 46)
d. Base enclosure (see
Base enclosure on page 53)
e. Display assembly (see
Display assembly on page 55)
f. Fan (see
Fan on page 63)
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 48)
●
Heat sink (see
Heat sink on page 70)
●
Processor (see
Processor on page 75)
66 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts