Toshiba Satellite U840 Maintenance Manual page 147

Replacement Procedures
Installing a memory module
To install a memory module, confirm that the computer is in boot mode. Then perform the
following procedure (See Figure 4-5-4).
1. Insert a memory module into the connector of the computer slantwise (terminal side
first) and press it to connect firmly.
CAUTION: The power must be turned off when you insert a memory module. Inserting a
memory module with the power on might damage the module or the
computer itself.
Never press hard or bend a memory module.
2. When the power of the computer is turned on, the computer checks automatically the
memory size. Confirm that the new memory is detected correctly.
3. If the memory is not detected, check that it is connected correctly.
Satellite U840 Maintenance Manual (960-Q08) 4-20