Mylex FlashPoint BT-930, Installation Manual And User'S Manual

Page: 50 / 70

Troubleshooting Guidelines
4-2 FlashPoint™ LT BT-930 User’s Manual
For example, you have installed the ASPI DOS driver in the
CONFIG.SYS file and are attempting to boot from a SCSI disk drive.
The system begins the boot sequence, the banner is displayed, attached
SCSI devices are recognized and posted on the display. A message is
then displayed indicating that the SCSI DOS driver is being installed,
however, the system appears to suspend operation with no further boot
activity. In this sequence of operation, BIOS does not require IRQ
support, so it proceeds without problem. The DOS driver requires the
IRQ and quickly stops operation after being installed because of a
possible IRQ conflict.
• Verify AutoSCSI configuration. If you have changed adapter SCSI-
or BIOS-related parameters via AutoSCSI, use the Load Factory
Default option on the AutoSCSI Adapter Configuration Menu to return
the board to factory-set defaults. Check that you have selected
operating parameters that do not conflict with those of other installed
adapters before re-entering your changes.
Check Device Driver Compatibility
• Check that you have installed no more devices than your operating
system or driver can handle. For example, pre-DOS 5.0 versions of
DOS can handle only two hard drives. To handle more devices, you
must install additional drivers.
• Under DOS, be sure that you have installed drivers appropriate for each
installed device. For example, you cannot operate a CDROM device
without installing a CDROM driver for it. Mylex provides a DOS
CDROM driver. Refer to driver installation for further details.
• Be sure you have compatible device driver software installed.
Verify SCSI Device Configuration and Connectivity
Verify that the SCSI cabling is correctly attached and that the adapter can
communicate with a selected device by performing the following:
• Check the adapter’s ability to communicate with attached devices.
Invoke AutoSCSI, and select the SCAN SCSI Bus option on the SCSI
Device list. This option will scan the SCSI bus displaying the message
shown in Figure 4-1. When the scan operation is complete, it registers
all the SCSI devices and displays the device information. If the device