Option

Description

 

 

Port D

Auto enables BIOS support for the device attached to

(Off default)

SATA port D. Off disables BIOS support for the device.

Port E

Auto enables BIOS support for the device attached to

(Off default)

SATA port E. Off disables BIOS support for the device.

 

 

Boot Settings Screen

 

 

 

Option

Description

 

 

Boot Mode

CAUTION: Switching the boot mode could prevent

(BIOS default)

the system from booting if the operating system was

 

not installed in the same boot mode.

 

If the operating system supports UEFI, you can set this

 

option to UEFI. Setting this field to BIOS allows

 

compatibility with non-UEFI operating systems.

 

NOTE: Setting this field to UEFI disables the Boot

 

Sequence, Hard-Disk Drive Sequence, and USB Flash Drive

 

Emulation Type fields.

Boot Sequence

If Boot Mode is set to BIOS, this field indicates to the

 

system the location of the operating system files needed

 

for startup. If Boot Mode is set to UEFI, you can access

 

the UEFI boot manager utility by rebooting the system

 

and pressing F11 when prompted to do so.

Hard-Disk Drive

Determines the order in which the BIOS attempts to

Sequence

boot from hard drives in the system during system

 

startup.

USB Flash Drive

Determines the emulation type for a USB flash drive.

Emulation Type

Hard disk allows the USB flash drive to act as a hard

(Auto default)

drive. Floppy allows the USB flash drive to act as a

 

removable diskette drive. Auto automatically chooses an

 

emulation type.

Boot Sequence Retry

If this field is enabled and the system has failed to boot,

(Disabled default)

the system reattempts to boot after 30 seconds.

 

 

Using the System Setup Program and UEFI Boot Manager

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Dell R515 owner manual Boot Settings Screen, Not installed in the same boot mode, Emulation Type fields