Toshiba Satellite U840 Maintenance Manual page 144

Replacement Procedures
4.4 Memory module
CAUTION: The power of the computer must be turned off when you remove a memory
module. Remove a memory module with the power on risks damaging the
module or the computer itself.
Do not touch memory module terminals. Any dirt on the terminals may cause
memory access problems.
Never press hard or bend a memory module.
Removing a memory module
To remove a memory module, confirm that the computer is in boot mode. Then perform the
following procedure (See Figure 4-4-1 to 4-4-4).
1. Remove 13 PCS screw caps, and remove 13PCS screws from base, and remove
disassemble base.
2. Disconnect power cable power connector from main board.
3. Open the left and right latches and remove a memory module.
Figure 4-4-1 Remove screw caps and screws, disassemble base
Satellite U840 Maintenance Manual (960-Q08) 4-17