BIOS ROM

 

 

Table 8-2

 

 

Setup Utility

 

 

 

Heading

Option

Description

 

 

 

Storage

 

Transfer Mode

(continued)

 

Specifies mode used for data transfer.. Options (subject to device

 

 

capabilities) are Max UDMA (default), PIO 0, Max PIO, Enhanced

 

 

DMA, and Ultra DMA 0.

 

 

 

 

 

Translation Parameters (ATA disks only)

 

 

This feature appears only when User translation mode is selected.

 

 

Allows you to specify the parameters (logical cylinders, heads, and

 

 

sectors per track) used by the BIOS to translate disk I/O requests

 

 

(from the operating system or an application) into terms the hard

 

 

drive can accept. Logical cylinders may not exceed 1024. The

 

 

number of heads may not exceed 256. The number of sectors per

 

 

track may not exceed 63. These fields are only visible and

 

 

changeable when the drive translation mode is set to User.

 

 

 

 

Storage Options

Removable Media Boot

 

 

Enables/disables ability to boot the system from removable media.

 

 

 

 

 

Legacy Diskette Write

 

 

Enables/disables ability to write data to legacy diskettes.

 

 

After saving changes to Removable Media Write, the computer

 

 

will restart. Turn the computer off, then on, manually.

 

 

BIOS DMA Data Transfers

 

 

Allows you to control how BIOS disk I/O requests are serviced.

 

 

When “Enable” is selected, the BIOS will service ATA disk read and

 

 

write requests with DMA data transfers. When “Disable” is selected,

 

 

the BIOS will service ATA disk read and write requests with PIO

 

 

data transfers.

 

 

 

 

 

SATA Emulation

 

 

Allows you to choose how the SATA controller and devices are

 

 

accessed by the operating system.

 

 

Separate IDE Controller” is the default option. Up to 4 SATA and 2

 

 

PATA devices may be accessed in this mode. The SATA and PATA

 

 

controllers appear as two separate IDE controllers. Use this option

 

 

with Microsoft Windows 2000 and Windows XP.

 

 

• SATA 0 is seen as SATA Primary Device 0

 

 

• SATA 1 (if present) is seen as SATA Secondary Device 0

 

 

Combined IDE Controller” is the other option. Up to 2 PATA and 2

 

 

SATA devices may be accessed in this mode. The SATA and PATA

 

 

controllers appear as one combined IDE controller. Use this option

 

 

with Microsoft Windows 98 and earlier operating systems.

PATA Primary Device 0 replaces SATA 1

PATA Primary Device 1 replaces SATA 3

Support for specific Computer Setup options may vary depending on the hardware configuration.

 

8-8

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Technical Reference Guide