Service manual

Disassembly
2 - 8 Removing the System Memory (RAM)
2.Disassembly
Removing the System Memory (RAM)
The computer has two memory sockets for 200 pin Small Outline Dual In-line Memory Modules (SO-DIMM) supporting
DDR 333/4000MHz. The main memory can be expanded up to 2GB. The SO-DIMM modules supported are 256MB,
512MB and 1024MB DDR Modules. The total memory size is automatically detected by the POST routine once you turn
on your computer.
Memory Upgrade Process
1. Turn off the computer, remove the battery (page 2 - 5).
2. Locate the bay cover , and remove screws - (for M550J) OR screws - (for M540J).
3. Remove the bay cover
.
Figure 4
RAM Module
Removal
a. Remove the screws.
b. Remove the cover.

Contact Warning
Be careful not to touch
the metal pins on the
module’s connecting
edge. Even the clean-
est hands have oils
which can attract parti-
cles, and degrade the
module’s perfor-
mance.
1 2 8
2 6
1

1. Bay Cover
• 7 Screws (M550J)
• 5 Screws (M540J)
a.
M550J
M540J
1
1
b.
1
3 4
2
5
8
6
7
6
2 3
4
5