Acer TravelMate MS2154W - Manual (Page 46)

2 Customizing my computer 38
English
Installing memory
Follow these steps to install memory:
1 Turn off the computer, unplug the AC adapter (if connected) and
remove the battery pack. Then turn the computer over to access its
base.
2 Remove the screw from the memory cover (1), then lift up and
remove the memory cover (2).
3 Insert the memory module diagonally into the slot (1), then gently
press it down until it clicks into place (2).
4 Replace the memory cover and secure it with the screw.
The computer automatically detects and reconfigures the total
memory size.