Adaptec 2920C User Guide - Page 10

Troubleshooting Checklist If you have any problems during the installation, check the following items first: s Have you installed the host adapter in a PCI Rev 2.0 compliant computer? s Are all SCSI devices powered? s Are all SCSI bus cables and power cables properly connected? Is pin 1 oriented correctly? s Does the host adapter and each device on the SCSI bus have a unique SCSI ID? s Did you install your host adapter in a bus master PCI slot? Refer to your computer's documentation for instructions or try another slot. s Are the devices at the extreme ends on the SCSI bus terminated properly? s Does the total SCSI cable length exceed the 3-meter limit when the maximum sync transfer rate is set to 10 MBytes/sec? s Does your system CMOS setup require you to enable PCI bus parameters? If so, refer to your computer's documentation for instructions. Check that IRQ channel assignment, board, and BIOS settings have been made. Some configuration options apply to a specific PCI bus slot, so if you change these options be sure you are applying them to the slot in which the host adapter is installed. Check your computer documentation to verify which slot corresponds to which number. - If there is an Interrupt Type or Interrupt Line option in the Setup program, be sure to select Int-A or Interrupt Type = A. Depending on your system design, you may also be required to change a motherboard jumper setting. - If there is a Triggering Interrupt option, be sure to select Level. - If there is an option to enable or disable bus mastering for the PCI slots, be sure to select Enabled. - If there is an option to enable or disable individual PCI slots, be sure the slot in which you install the host adapter is Enabled. - 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. 10