Host Adapter Settings

Configuration Settings

A – Fast!UTIL

A.2.1

From the Configuration Settings menu in Fast!UTIL, select Host Adapter Settings. Default settings for the QLA12160 host adapter board are listed in table A-1and described in the following paragraphs.

Table A-1. Host Adapter Settings

Setting	Options	Default

Host adapterBIOS	Enabled, Disabled	Enabled
PCI bus DMA burst	Enabled, Disabled	Enabled
CDROM Boot	Enabled, Disabled	Disabled
Adapter Configuration	Auto, Manual, Safe	Auto
Drivers load RISC code	Enabled, Disabled	Enabled
>4 Gbyte Addressing	Enabled, Disabled	Disabled
Fast Command Posting	Enabled, Disabled	Enabled

■Host adapter BIOS. When this setting is Disabled, the ROM BIOS on the QLA12160 board is disabled, freeing space in upper memory. The RAM BIOS and other drivers still recognize the QLA12160 board. Do not disable this setting when you are booting from a SCSI disk drive attached to the QLA12160 board. The default is Enabled (ROM BIOS on the QLA12160 board is enabled).

■PCI bus DMA burst. When this setting is Enabled, burst transfers are performed. When this setting is Disabled, data is transferred in nonburst mode, with each cycle initiated by a new address phase. The default is Enabled.

■CDROM Boot. When this setting is Enabled, the ROM BIOS boots from the attached SCSI CD-ROM when a bootable compact disk is installed. If no bootable CD-ROM is found, the system boots from the first bootable SCSI drive. When this setting is disabled, the ROM BIOS does not boot from the CD-ROM. The default is Disabled.

■Adapter Configuration

❑Auto. The ROM BIOS automatically configures the QLA12160 board to match any SCSI device attached to the board and selects optimum performance. The default is Auto.

❑Manual. You can control the configuration settings for each SCSI device and have the option of running Autoconfigure. See section A.2.4 to have Fast!UTIL configure the devices.

NOTE: Changing any value can cause performance problems or incorrect device operation.

A-2	DC8151101-00 C