Toshiba Tecra M4 - Manual (Page 165)

TECRA M4 8-7
Optional Devices
Memory expansion
This computer is equipped with two memory module sockets on the
underside of the computer. You can increase the amount of RAM by
installing additional memory or replacing default memories with additional
memories. This section describes how to install and remove a memory
module.
If you install a memory module that is not compatible with the computer,
beep will sound when you turn on the power. If the memory module is
installed in slot A, there will be a long beep (1 second) followed by two short
beeps (0.5 second each). If the memory module is in slot B, there will be a
long beep followed by four short beeps. If the both memory modules in slot
A and slot B are incompatible, there will be a long beep followed by two
short beeps and after a pause (1 second) a long beep followed by four
short beeps. In this case, shut down the power and remove the
incompatible module(s).
■ Place a mat beneath the computer to prevent making a scratch on the
lid when replacing the memory module. Avoid the mat that generates
static electricity.
■ When you remove a memory, please do not touch other portions of a
computer.
■ 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 Standby 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.
Be sure to install memory module to slot A. The computer does not boot
when slot A is vacant.
Use a point size 1 Phillips screwdriver to remove and fasten the screws.
Use of an incorrect screwdriver can damage the screw heads.