IBM A50 User Manual

Contents

Selecting a temporary startup deviceUse this procedure to startup from any boot device.Note: Not all CDs, hard disks, and diskettes are startable (bootable).1. Turn off your computer.2. Press and hold the F12 key then turn on your computer. When the StartupDevice Menu displays, release the F12 key.3. Select the desired startup device from the Startup Devices Menu and pressEnter to begin.Note: Selecting a startup device from the Startup Devices Menu does notpermanently change the startup sequence.Changing the startup sequenceTo view or change the primary or automatic power-on startup sequence, do thefollowing:1. Start the IBM Setup Utility program (see “Starting the IBM Setup Utilityprogram” on page 77).2. Select Startup.3. Select Startup Sequence. See the information displayed on the right side of thescreen.4. Select the sequence of devices for the Primary Startup Sequence, the AutomaticStartup Sequence, and the Error Startup Sequence.5. Select Exit from the IBM Setup Utility menu and then Save Settings.If you have changed these settings and want to return to the default settings, selectLoad Default Settings on the Exit menu.Advanced settingsOn some computer models, the Advanced settings menu includes a setting toEnable/Disable HyperThreading. This feature works only withHyperThreading-aware operating systems such as Microsoft Windows XP. Thedefault setting for HyperThreading is Enabled. However, if you select Set Defaults(HyperThreading is Enabled) and are using an operating system other thanWindows XP, your computer performance might be degraded. Therefore, youshould always set HyperThreading to disabled unless you are sure your operatingsystem supports hyperthreading.Chapter 4. Using the IBM Setup Utility program 79