Dell OptiPlex G1 User Manual
Page 22
Using the System Setup Program: Dell OptiPlex GX1 Low-Profile Managed PC Systems
file:///C|/infodev/2013/eDoc/OpGX1/SQRG/system.htm[2/21/2013 11:52:58 AM]
15M - 16M
CPU Speed
CPU Speed indicates the processor speed at which your system boots.
Press the left- or right-arrow key to toggle the CPU Speed option between the resident microprocessor's
rated speed (the default) and a lower compatibility speed, which lets you accommodate speed-sensitive
application programs. A change to this option takes effect immediately (rebooting the system is not required).
You can also toggle between the rated processor speed and the compatibility speed while the system is
running in real mode by pressing
Num Lock
Num Lock determines whether your system boots with the Num Lock mode activated on 101- or 102-key
keyboards (it does not apply to 84-key keyboards).
When Num Lock mode is activated, the rightmost bank of keys on your keyboard provides the mathematical
and numeric functions shown at the tops of the keys. When Num Lock mode is turned off, these keys provide
cursor-control functions according to the label on the bottom of each key.
Chassis Intrusion
Chassis Intrusion displays the status of the system chassis intrusion monitor. The settings for this option are
Enabled, Enabled-Silent, or Disabled. The default is Enabled.
If the computer cover is removed while the intrusion monitor is set to Enabled, the setting changes to
Detected, and the following message appears during the boot sequence at the next system start-up:
Alert! Cover was previously removed.
If the computer cover is removed while the intrusion monitor is set to Enabled-Silent, the setting changes to
Detected, but the alert message is not displayed during the boot sequence at the next system start-up.
If the intrusion monitor is set to Disabled, no intrusion monitoring occurs and no messages are displayed.
To reset the Detected setting, enter the System Setup program during the system's power-on self-test
(POST). Highlight the Chassis Intrusion option and press the left- or right-arrow key to choose Enabled,
Enabled-Silent, or Disabled.
NOTE: When the setup password is enabled, you must enter the setup password before you can
reset the Chassis Intrusion option.
DAC Snoop
DAC Snoop lets you correct video problems that may occur when certain video add-in cards are used. The
default is Off. If you are using a video add-in card and problems such as incorrect colors or blank windows
occur, set DAC Snoop to On.