Appendix 123Performing a One-Time BootYou can set a one-time-only boot sequence without entering the systemsetup program. (You can also use this procedure to boot the DellDiagnostics on the diagnostics utility partition on your hard drive.)1 Turn off the computer.2 If the computer is connected to a docking device (docked), undock it.See the documentation that came with your docking device forinstructions.3 Connect the computer to an electrical outlet.4 Turn on the computer. When the DELL logo appears, pressimmediately. If you wait too long and the Windows logo appears,continue to wait until you see the Windows desktop. Then shut downyour computer and try again.5 When the boot device list appears, highlight the device from whichyou want to boot and press .The computer boots to the selected device.The next time you reboot the computer, the previous boot order is restored.System and Battery PerformanceOptimizationSystem Performance OverviewSystem performance may be reduced under specific conditions to preventautomatic system shutdown and potential data loss. Conditions underwhich performance is reduced include:P R O C E S S O R G E T S H O T — Performance is reduced when system temperatureexceeds established thermal parameters. This performance reduction helps toregulate the system and surface temperatures, which prevents the computer fromshutting down due to excessive processor temperatures.AC A D A P T E R T H R O U G H P U T — Performance is reduced when the computer isrunning on AC power and power consumption exceeds the established parameters ofthe AC Adapter. This performance reduction ensures that the system does not try toconsume more power than the AC adapter can provide.
