Dell Latitude LM - Manual (Page 28)

2-6 Dell Latitude LM Reference and Troubleshooting Guide
Parallel Mode
PARALLEL MODE controls whether the computer’s paral-
lel port acts as an AT-compatible (unidirectional), PS/2-
compatible (bidirectional), EPP-compatible, or ECP-
compatible port. You can also disable the port and free its
assigned LPT address for another device. The default set-
ting for this option is
BI-DIRECTIONAL . Other possible
settings are DISABLED , NORMAL , EPP , and ECP .
Diskette Mode
When DISKETTE MODE is set to NO REBOOT (the default),
you do not have to reboot after installing a diskette drive
in the options bay or attaching a diskette drive to the
parallel connector on the back of the computer. However,
some application programs—such as virus scans—that
access the diskette drive will run very slowly. When
DISKETTE MODE is set to REBOOT , such application pro-
grams run at normal speed, but you must reboot after
installing or attaching a diskette drive.
Video Mode
VIDEO MODE sends the video signal to the display only
( LCD MODE ), an external monitor only ( CRT MODE ), or to
both ( SIMUL MODE ).
NOTE: When an external monitor is attached to the
monitor connector, the computer does not enter suspend
mode when the display is closed. Instead, the computer
sends its video signal to the external monitor.
Touch Pad
TOUCH PAD lets you enable or disable the touch pad in
Windows 3.x. If you are using Windows 95, the operating
system determines if an external mouse is attached to the
computer and automatically configures this option. The
default setting is
ENABLED . Select DISABLED when you
want to attach a serial mouse to the computer.
If you attach a PS/2 mouse, the computer automatically
detects the mouse and disables this option (but does not
change the setting).
CD-ROM Drive Speed
CD-ROM DRIVE SPEED lets you compensate for imbalanced
CDs, which can cause the computer to vibrate when the
CD-ROM drive is in use. This option allows you to use
discs that might otherwise be unreadable. This option is
available for CD-ROM drives with speeds of 6X or higher.
If this option is set to HIGH PERFORMANCE (the default),
the CD-ROM drive always runs at the highest speed. If
this option is set to
VARIABLE , the CD-ROM drive auto-
matically lowers its speed to reduce or stop the vibration
caused by the imbalanced CD.
NOTE: When this option is set to VARIABLE , the CD-
ROM drive takes several seconds to determine the proper
speed. You cannot access the disc during that time.
For a change in the CD-ROM DRIVE SPEED option to take
effect, select SAVE CHANGES & EXIT from the Exit menu.
(For more information, see “Exit Menu Options” found
later in this chapter.)
Security Menu Options
The following subsections explain each option in the
Security menu of the Setup program (Figure 2-3). The
same information is also available in the topic titled
“Security Menu” in the online System User’s Guide.
Table 2-2. Infrared Port Mappings
If infrared
port is set to:
Serial port can be set to:
COM1 COM2 or COM4 (COM1 and
COM3 are illegal configurations.)
COM2 COM1 or COM3 (COM2 and
COM4 are illegal configurations.)
COM3 COM2 or COM4 (COM1 and
COM3 are illegal configurations.)
COM4 COM1 or COM3 (COM2 and
COM4 are illegal configurations.)