Toshiba Portege M100 User Guide - Page 59

Getting Started Installing additional memory (optional) 59 Before you install or remove a memory module, turn off the computer using the Start menu. If you install or remove a memory module while the computer is in Standby or Hibernation mode, data will be lost. A memory module must be installed in slot A. do not try to operate the computer with a memory module in slot B only. If you install a memory module that is incompatible with the computer, a beep will sound when you turn on the computer. If the module is installed in slot A, thee will be a long beep followed by a short beep. If the module is in slot B, there will be a long beep followed by two short beeps. In this case, turn off the computer and remove the incompatible module. If you use the computer for a long time, the memory modules become hot. If this happens, let the memory modules cool to room temperature before you replace them. Additional memory modules can be installed in the memory expansion slots under your computer's keyboard. You will need a standard Phillips no.1 screwdriver and a small flat head screwdriver for this procedure. To avoid damaging the computer's screws, use a standard Phillips no. 1 screwdriver that is in good condition. 1 Shut down your computer completely using the Shut Down or Turn Off command. See "Powering down the computer" on page 96.