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Dell Latitude Ultrabook, E-Family & Mobile Precision Reimage "How-To" Guide

2.5 BIOS

Dell recommends flashing the latest BIOS available to the system. This is posted on Dell's driver &

downloads support web site (support.dell.com) under the "BIOS" section.

Some of the BIOS settings are critical to Operating System performance and installation. These are

as follows:

o If AHCI, IRRT, RAID On, or RAID modes are selected, Intel's Matrix Storage Manager / Intel

Rapid Storage Technology driver must be installed in conjunction with the installation of

the Operating System. See section "2.6.4 Intel Storage" of this document

Settings  System Configuration SATA Operation



Disabled: SATA Controllers are hidden



ATA, Basic Disk Operation mode, does not require additional storage driver.

Note

: eSATA is not functional in this mode



AHCI, SATA bus is configured for AHCI mode (Advanced Disk Operation

mode) which offers faster performance, eSATA support, and increased battery

life. This mode requires an additional storage driver provided by Dell



IRRT / RAID On, SATA bus is configured to support IRRT (Intel's Rapid

Recovery Technology). This mode supports AHCI mode features as well as

disk mirroring (RAID-1). IRRT allows data backup and restoration. This mode

requires an additional storage driver provided by Dell



RAID, SATA bus is configured to support RAID. This mode supports AHCI

mode features as well as disk mirroring (RAID-1). RAID allows data backup

and restoration. This mode requires an additional storage driver provided by

Dell.

Note:

RAID support requires second hard disk drive.