User guide

8-6 User’s Manual
Optional Devices
Some memory modules can be physically installed but are not compatible
with the computer. In this case, the computer will issue a warning. When
you turn on the power, a series of short beeps will sound in the pattern of
one, three, three, one. Shut down the power and remove the incompatible
module.
Installing a memory module
Follow the steps below to install a memory module.
1. Set the computer to boot mode and turn the computer’s power off.
Make sure the Power indicator is off. Refer to the Turning off the power
section in Chapter 3, Getting Started.
2. Remove AC adaptor and all cables connected to the computer.
3. Turn the computer upside down and remove the battery pack.
Refer to Replacing the battery pack section in Chapter 6,
Power and Power-Up Modes, for details.
4. Loose the screw securing the memory module cover. The screw is
attached to the cover to prevent it from being lost.
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 Stand by mode or hibernation
mode.
c.Wake-up on LAN is enabled.
■ Be careful not to let screws or other foreign matter fall into the
computer. It could cause malfunction or electric shock.
■ Expansion memory is a precision electronic component that may be
fatally damaged by static electricity. Since 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 0 Phillips screwdriver to remove and fasten screws.
Use of an incorrect screwdriver can damage the screw heads.