Adaptec AHA-2930 Installation Guide - Page 13

- If your computer has a combination of ISA (or EISA) boards and PCI boards, you may need to mark the IRQs used by ISA/EISA boards as Used so the system BIOS will not try to assign these IRQs to other PCI boards. - In some systems the BIOS reserves a set of available IRQs for PCI boards, and you have to assign these IRQs manually. s If SCAM is enabled, are your SCSI devices SCAMcapable or SCAM-tolerant? Devices that are not SCAM-tolerant may not be detected by the BIOS. ASPI drivers should not have any problems. Common Problems and Solutions s Boot From SCSI Disk Fails-If you are booting from a SCSI hard disk drive, make sure the Drives setting in your computer's Setup program that corresponds to the drive is set to None or No Drives Installed, as required for SCSI hard disk drives. s Changed Values Not Loaded-If you changed any values on the host adapter in a Setup program or on a SCSI device, did you turn the power off and on to ensure that the new values are loaded? s Computer Will Not Boot from a SCSI Disk Drive- If you have a combination of SCSI and non-SCSI disk drives, then the non-SCSI disk drive is always the boot device. If the system has only SCSI disk drives, do the following: 1 Make sure the drive type in your computer's CMOS setup is set to No Drives Installed. 2 Make sure the boot hard disk SCSI ID corre- sponds to the Boot SCSI ID setting under SCSISelect settings (see page 8). The SCSI ID is normally set with jumpers or switches on the drive. 3 If this does not solve the problem, back up all data on the SCSI hard disk and perform a low-level format with the SCSISelect Format Disk option. See the MS-DOS documentation for instructions on partitioning the disk after formatting. s Host adapter not displayed by Board Control (Macintosh)-If the host adapter was not installed correctly, you cannot display it using Board Control. If it is not displayed, do the following: 1 Be sure that jumper J4 is removed. 2 Make sure that the host adapter is firmly seated in the PCI slot. 3 Restart your computer and relaunch Board Control. s Format/Verify Disk Device Utility Startup Fails-If you tried to use the Format/Verify utility on a disk device and got an Unexpected SCSI Command Failure pop-up box with error information, the utility probably encountered a problem with the disk device or the media and therefore cannot run. 12