Reference Guide

BIOS Settings Name Description Supported
Operating
System(s)
• Disabled
• Enabled
System Isochronous Mode
Enables or Disables System Isochronous mode.
NOTE: Isochronous mode may be best for audio and
video streaming applications.
Possible values are:
• Enabled — Enabled this mode to reduce the latency of
memory transactions at the expense of bandwidth.
• Disabled — Disabled this mode for applications that need
high memory bandwidth.
Tablet Buttons
Enables or Disables Tablet Buttons.
Possible values are:
• Disabled
• Enabled
Windows
Tablet Buttons Timeout on Ac
This feature defines the illumination timeout value for the tablet
buttons when an AC adapter is connected to the system. The
buttons are illuminated when they are pressed, and remains
illuminated for that specified timeout period. The tablet button
illumination timeout value works when button illumination is
enabled. If you select Never, the buttons remain illuminated
whenever the system is connected to the AC adapter.
Possible values are:
• Never
• 5 seconds
• 10 seconds
• 15 seconds
• 30 seconds
• 1 minute
• 5 minute
• 15 minute
Windows
Tablet Buttons Timeout on Battery
This feature defines the illumination timeout value for the tablet
buttons when the system is running on battery power. The
buttons are illuminated when they are pressed, and remains
illuminated for that specified timeout period. The tablet button
illumination timeout value works when button illumination is
enabled. If you select Never, the buttons remain illuminated
whenever the system is running on battery power.
Possible values are:
• Never
• 5 seconds
• 10 seconds
• 15 seconds
• 30 seconds
• 1 minute
• 5 minute
• 15 minute
Windows
TCM Visibility
Hides or unhides the TCM from the operating system on the
next boot.
Windows
294 BIOS settings supported in Dell Command | Monitor 10.3