Asus PCI-SC896 User Manual page 25

3. Configuring
3.2.2 Utilities Menu
When you select a host adapter on the Main menu, the Utilities menu appears.
Choose Adapter Setup to view and change the selected adapter settings. Choose
Device Selections to view and change settings for the devices attached to the
selected adapter. You are returned to this menu after making changes to the
configuration of any host adapter or connected SCSI device. Before you exit
this menu, you are prompted to save or cancel any changes.
3.2.2.1 Adapter Setup Menu
When you select Adapter Setup, the Adapter Setup menu appears:
The settings in this menu are global settings that affect the selected host adapter
and all SCSI devices attached to it.
SCAM Support – The ASUS BIOS version 4.0 and above supports the SCSI
Plug and Play protocol called SCAM (SCSI Configured AutoMatically). SCAM
support by default is off in versions 4.11.00 and later for the PCI-SC896 de-
vice. You may choose to turn this on. Note that if this BIOS is flashed onto a
board with existing settings, then these settings will not be changed to reflect
the new BIOS defaults. Go into the Configuration Utility to change settings.
Parity – The ASUS PCI to SCSI host adapters always generate parity, but
some older SCSI devices do not. Therefore, you are offered the option of dis-
abling parity checking.
NOTE: When disabling parity checking, it is also necessary to disable
disconnects for all devices, as parity checking for the reselection phase
is not disabled. If a device does not generate parity, and it disconnects,
the I/O never completes because the reselection never completes.
Host SCSI ID – In general, it is suggested that you do not change your host
adapter ID from the default value of 7, as this gives it the highest priority on the
SCSI bus.
Scan Order – This option allows you to tell the SCSI BIOS and device drivers
to scan the SCSI bus from low to high (0 to max) SCSI ID, or from high to low
(max to 0) SCSI ID. If you have more than one device on the SCSI bus, chang-
ing the scan order changes the order in which drive letters are assigned by the
system. Drive order may be reassigned differently in systems supporting the
BIOS Boot Specification (BBS). See the PCI SCSI Device Management Sys-
tem SDMS 4.0 User's Guide, Chapter 2 "SCSI BIOS" for additional informa-
tion regarding BBS.
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