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Using the System Setup Program and UEFI Boot Manager

Using the System Setup Program

and UEFI Boot Manager

The System Setup program is the BIOS program that enables you to manage

your system hardware and specify BIOS-level options. From the System Setup

program, you can:

• Change the NVRAM settings after you add or remove hardware

• View the system hardware configuration

• Enable or disable integrated devices

• Set performance and power management thresholds

• Manage system security

Choosing the System Boot Mode

The System Setup program also enables you to specify the boot mode for

installing your operating system:

• BIOS boot mode (the default) is the standard BIOS-level boot interface.

• UEFI boot mode is an enhanced 64-bit boot interface based on Unified

Extensible Firmware Interface (UEFI) specifications that overlays the

system BIOS. See "Entering the UEFI Boot Manager" on page 139 for

more information on this interface.

You select the boot mode in the

Boot Mode field of the Boot Settings screen of

the System Setup program (see "Boot Settings Screen" on page 133). Once

you specify the boot mode, the system boots in the specified boot mode and

you then proceed to install your operating system from that mode. Thereafter,

you must boot the system to the same boot mode (BIOS or UEFI) to access

the installed operating system. Trying to boot the operating system from the

other boot mode causes the system to halt immediately at start-up.

NOTE: Operating systems must be UEFI-compatible (for example, Microsoft

Windows Server

2008 x64 version) to be installed from the UEFI boot mode. DOS

and 32-bit operating systems do not support UEFI and can only be installed from the

BIOS boot mode.

Dell 8 User Manual

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