4-8 Adding Expansion DevicesChecking System MemoryIf you do not know how much memory is installed in your system, checkthe amount by using the following procedure.1. On the Windows 98, Windows 2000, or Windows NT 4.0 desktop,point to My Computer and click the right mouse button.2. With the left mouse button, click Properties. The General tab showsthe random access memory (RAM). This is the amount of systemmemory in the computer.In Windows 98 or Windows 2000, you can also find the amount ofmemory by pointing to My Computer, clicking the right mouse button,and selecting the Performance tab.Installing a SO-DIMM ModuleUse the following steps to install a SO-DIMM memory module.To prevent damage to system components andthe memory modules, wake a system in sleep mode, exit Windows, powerdown the system, and unplug the AC power adapter power cord from thepower source.1. If your system is in sleep mode, move the mouse or press a key totake it out of sleep mode.2. Save and exit all your open applications and shut down Windows.3. Shut down the system by pressing and holding in the power buttonfor four seconds or more.4. Unplug the AC adapter power cord from the power source.
