Reference Guide

BIOS Settings Name Description Supported Operating
System(s)
• 2 = Express Charge — Switches the primary battery to Express Charge mode
using the express charging algorithm
• 3 = AC Use — Recommended setting for users who primarily operate the
battery when it is plugged in
• 4 = Auto Charge — The battery places itself in a mode based on periodic
evaluation of customer usage to deliver the best balance of capacity
• 5 = Custom Charge — The battery starts and stops charging based on the
user input
Primary Battery Custom
Charge Limit
Charges the battery based on the user input.
Possible values are:
• 1 = Primary Battery Custom Charge Start Limit — Is applicable to the
DCIM_BIOSService for setting the start limit for charging the battery.
• 2 = Primary Battery Custom Charge Stop Limit — Is applicable to the
DCIM_BIOSService for setting the stop limit for charging the battery.
Possible values for the Start and Stop limit are:
• Start limit = 50 — 95
• Stop limit = 55 — 100
• Granularity — Dead band in binary format. For example, if the dead band is
5%, the stop charging value is 5% greater than the start charging value, but
is not allowed to exceed 100.
Microsoft Windows
Primary Battery Custom
Charge Start Limit
Sets the start limit for charging the battery.
Possible values are:
• Integers ranging from 50 to 95
Linux
Primary Battery Custom
Charge Stop Limit
Sets the stop limit for charging the battery.
Possible values are:
• Integers ranging from 55 to 100
Linux
Primary IDE Channel,
Master Device
Enables or Disables primary Parallel ATA master channel.
Possible values are:
• O
• Auto
Microsoft Windows
Primary IDE Channel, Slave
Device
Enables or disables primary Parallel ATA slave channel.
Possible values are:
• Disable
• Enable
Microsoft Windows
Primary Video Device Slot
Congures the slot for primary video display.
Possible values are:
• 0 — Sets the onboard video device slot as primary video device slot.
• 1-15 — Sets the specied slot number as a primary video device slot.
• 255 —Scans PCI buses and uses the rst video device slot, found with video
card as a primary video device slot.
Microsoft Windows,
Linux
BIOS settings supported in Dell Command | Monitor10.1.0 287