Dell Dimension 5100, Owner'S Manual

Page: 123 / 164

Appendix 123
Performing a One-Time Boot
You can set a one-time-only boot sequence without entering the system
setup program. (You can also use this procedure to boot the Dell
Diagnostics 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 for
instructions.
3
Connect the computer to an electrical outlet.
4
Turn on the computer. When the DELL logo appears, press
immediately. If you wait too long and the Windows logo appears,
continue to wait until you see the Windows desktop. Then shut down
your computer and try again.
5
When the boot device list appears, highlight the device from which
you 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 Performance
Optimization
System Performance Overview
System performance may be reduced under specific conditions to prevent
automatic system shutdown and potential data loss. Conditions under
which performance is reduced include:
P
R O C E S S O R GE T S H O T
— Performance is reduced when system temperature
exceeds established thermal parameters. This performance reduction helps to
regulate the system and surface temperatures, which prevents the computer from
shutting down due to excessive processor temperatures.
AC A
D A PT ER T HR O U GH P UT
— Performance is reduced when the computer is
running on AC power and power consumption exceeds the established parameters of
the AC Adapter. This performance reduction ensures that the system does not try to
consume more power than the AC adapter can provide.