Adaptec 3940UW User's Guide download pdf (Page 65)

5-5

Troubleshooting

AHA-3940U/3940UW/3940UWD User’s Guide

Stock Number: 511041-00, Rev. B Page: 5-5

Print Spec Number: 494569-00

Current Date: 2/14/97 ECN Date: 2/17/97

Using SCSI Drives as C and D

■

Make sure your computer's CMOS

Setup

program is set to No

Drives Installed.

■

The drive with the lowest SCSI ID is automatically used for

boot-up. Refer to the disk drive manual to learn how to set the

drive’s SCSI ID. You can also use SCSISelect to specify the boot-

up drive; see page 3-18.

■

Always turn the computer’s power

OFF

and

after changing

any values on a channel, in a

Setup

program, or on a SCSI

device. This ensures that the new initial values are loaded.

■

Make sure SCSI Parity Checking is consistently enabled or dis-

abled on all devices on the SCSI bus.

■

Verify that the channel and the SCSI devices are properly con-

figured and installed.

■

Check that the SCSI bus is properly terminated.

■

Check that the disk is formatted and has a DOS partition. If the

disk has not been formatted, run the

Format Disk

utility

included in SCSISelect. See SCSI Disk Utilities on page 3-18.

Computer Hangs, or Channel Cannot Find the Drives

■

Check SCSI parity for consistency

■

Check for correct SCSI termination on each device.

■

Check cable length and integrity. Check pin-1 orientation.

■

If the host adapter LED stays on when the computer hangs, the

host adapter might be interfering with your computer’s opera-

tion. Is the adapter installed in a PCI slot that does not support

bus mastering? See your computer documentation.

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Adaptec 3940UW User's Guide Page 65

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