Toshiba Satellite Pro U400 - Manual (Page 121)

User’s Manual 8-7
Optional Devices
Memory expansion
You can install additional memory in the computer's memory module socket
to increase the amount of RAM. This section describes how to install and
remove a memory module.
Installing a memory module
Follow the steps below to install a memory module.
1. Set the computer to boot mode and turn off the power.
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. Loosen the screws securing the memory module cover.
5. Slide your fingernail or a thin object under the cover and lift it off.
■ Use only memory modules approved by TOSHIBA.
■ Do not try to install or remove a memory module under the following
conditions. You can damage the computer and the module. Also, data
will be lost.
a. The computer is turned on.
b. The computer was shut down using the Sleep Mode or Hibernation
Mode.
■ When incorrect memory is inserted, please refer to Memory expansion
section in Chapter 9, Troubleshooting , for details.
■ Expansion memory is a precision electronic component that may be
fatally damaged by static electricity. Since the human body has slight
static electricity, be sure to discharge static electricity from your body
before installing an expansion memory module. To discharge your
body's static electricity, simply touch any metal close to you with bare
hands.
Use a point size 1 Phillips screwdriver to remove and fasten the screws.
Use of an incorrect screwdriver can damage the screw heads.