User`s manual

User’s Manual 8-9
Optional Devices
O
PTIONAL
D
EVICES
Memory expansion
You can install additional memory in the computer’s memory module to increase
the amount of RAM.
CAUTION: Only memory modules with the following parts numbers
can be installed:
512MB: PA3511U-1M51
1GB: PA3512U-1M1G
2GB: PA3513U-1M2G
Installing memory module
To install a memory module, make sure the computer is in boot mode then:
1. Turn the computer off in boot mode. Refer to the Turning off the power sec-
tion in Chapter 3.
CAUTIONS: 1. If you use the computer for a long time, the memory mod-
ules will become hot. In this case, let the memory modules
cool to room temperature before you replace them.
2. Do not try to install a memory module with the computer
turned on or turned off in Sleep and Hibernation mode.
You can damage the computer and the memory module.
2. Remove all cables connected to the computer.
3. Turn the computer upside down and remove the battery pack (refer to
Chapter 6, Power and Power-Up Modes.)
4. Remove one screw securing the memory module cover.
5. Lift off the cover.
Note: Use a point size 0 Phillips screwdriver.
Intel 945GM/943GML model:
Insert the two memory modules of the same specifications
and capacity into Slot A and Slot B respectively. The com-
puter will operate in dual channel mode. You can access the
inserted memory modules efficiently in dual channel.