Reference Guide

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BIOS options

The following list describes Command | Congure options and arguments along with a description of their expected behavior.

Options and arguments are case sensitive. All options and predened arguments are lowercase unless stated otherwise.

NOTE: Some of the following options or arguments may not be available on all systems due to the BIOS version or

hardware feature set. Entering Command | Congure on a command line without arguments display only those options

that are valid for your system. For more details about the options, see

No option.

NOTE: If you congure a setup password and system password for the system, while changing a BIOS value, type the

setup password.

--acpower

Valid Argument o, last, on

Description

Sets the behavior of the system after Alternating Current (AC) power is lost.

• o — When AC power is restored, the system remains turned o.

• on — When AC power is restored, the system turns on.

• last — When the AC power is restored, the system returns to the state it was in when the

power was lost.

Example

C:\>cctk --acpower=off

acpower=off

--activityled

Valid Argument

actled, wlan, disable

Description

Sets the Network Activity Light Emitting Diode (LED) to any of the following:

• actled — Sets the Activity LED controlled by an Advanced Conguration and Power Interface

(ACPI) operating system and driver.

• wlan — Sets the Activity LED as a wireless Local Area Network (LAN) radio on/o indicator.

• disable — Sets the Activity LED to o.

Example

C:\>cctk --activityled=actled

activityled=actled

--adddevice

Valid Argument

usb

Description

Adds the specied device to the boot device list. At present, only the Universal Serial Bus (USB)

storage device is supported. This option is not valid on all the systems. The USB storage device is

added at the end of the boot order. If the USB device is already added in the boot order list,

executing the option does not change anything. If the USB storage device is already added in the

boot order list, the following message is displayed while executing the option:USB device is

already present in this machine.

NOTE: The adddevice option is not supported on the systems with UEFI-based BIOS.