Toshiba Tecra A8 manual Security controller, Execute-Disable Bit Capability, Enhanced C-States

HW Setup

Enhanced C-States

This feature enables or disables the Enhanced C-States.

Enabled	This lowers the power consumption.
Disabled	This does not lower the power consumption.

Execute-Disable Bit Capability

This setting, which is displayed on the first page of the setup screen, configures the Execute-Disable Bit function of the CPU. This function is specific to Intel® processors and, when activated, helps to reduce security threats to the computer by preventing certain classes of malicious 'buffer overflow' attacks when combined with a supporting operating system such as Windows XP.

Available	Makes the processor's Execute-Disable Bit
	Capability available for use.
Not Available	Disables the processor's Execute-Disable Bit
	Capability so that it is not available for use.
	(Default).

System configuration changes, other than changes to this setting, should be made within Windows by using applications such as TOSHIBA HW Setup, TOSHIBA Password Utility, TOSHIBA Power Saver, Windows Device Manager and so forth.

Security controller

The security controller settings are available in SYSTEM SETUP (2/2).

TPM

This setting enables or disables the security controller known as TPM (Trusted Platform Module).

Enabled	Enables the TPM.
Disabled	Disables the TPM (Default).

Clear TPM Owner

This setting is used to erase the data in TPM when disposing of the computer or when the owner of the computer changes, etc. Once this operation is carried out, the TPM configuration settings are erased, such that the encrypted data can no longer be decrypted and the files can no longer be read. Please backup or delete the data as necessary before carrying out this operation.

User’s Manual 7-11