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Troubleshooting Checklist
Most problems with using the Adaptec SCSI Card results from errors in preparing and
connecting devices on the SCSI bus. If you have problems, check these items first:
Are all SCSI cables and power cables properly connected?
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Are all SCSI devices turned on?
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Is the Adaptec SCSI Card firmly seated and secured in the PCIe expansion slot?
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Is the PCIe expansion slot compliant with PCIe Rev. 1.0 or higher?
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Are all SCSI devices on each SCSI bus assigned unique SCSI IDs?
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Is termination set correctly on all the devices?
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Note:
If you have problems with a specific SCSI device when other connected SCSI devices are
working correctly, please contact the manufacturer of the problem device for troubleshooting
information.
General Troubleshooting
The following procedures can be used for troubleshooting in all operating systems.
What if I can't load the driver and suspect that it is an resource conflict?
These are some basic steps that can assist the motherboard in correctly allocating resources to
your PCI devices and/or resolve existing IRQ conflicts:
Verify that all on-board devices not being used are disabled so that the resources they are being
allocated can be freed up for allocation to another device. This is accomplished through the
motherboard CMOS/BIOS setup utility. For example, if you are not using the onboard sound
port on your motherboard, you can usually disable this chipset and free up the resource it is
currently being assigned.
What if I have devices that are showing up at the wrong speed (usually slower) when the BIOS
scans the SCSI bus during boot?
Make sure you are using the terminated cable supplied with your Adaptec kit.
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Do not mix LVD and non-LVD SCSI devices on the same channel. All Ultra320, Ultra160
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and Ultra2 devices need to be on a single channel. Adding a slower device will slow down
all the devices on the same bus.
Be sure you have the connection firmly seated. A bad connection on a disk drive or other
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devices can cause problems talking to that device at the maximum speed.
Try to route the cable inside the system as smoothly as possible. Avoid bending, flexing, or
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stretching the cable inside your system.
If you are not booting from the SCSI card (your boot disk drive is not attached to the card)
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then the BIOS on the card should be disabled.
Chapter D: Troubleshooting
53
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Table of Contents
Troubleshooting
