Dell Precision M4600 (Early 2011) - Manual (Page 12)

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:
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:
o RAID support requires second hard disk drive.
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