Give the workarounds in this document a try:
http://www.hp.com/cposuppo
Could be all you need is to update the SCSI driver, I'd try the driver update for the SCSI card first, and then try the other workaround changing the synchronous/asynchronous mode. (Changing the BIOS settings may adversely affect your external burner...)
I hope this helps.
(Hi Spike. :-) )
Cindy
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by: Spike99Posted on 2002-07-01 at 01:38:21ID: 7121306
The first thing to check when troubleshooting SCSI devices is the SCSI ID set for each device. If the SCSI IDs aren't set correctly, especially if you have duplicate IDs on the same channel, the SCSI controller will get really confused and not utilize the attached SCSI devices correctly.
rt/printer s/support_ doc/ bpm153 05.html#P1 _98
rt/scanner s/support_ doc/ nps000 70.html
But, you should be able to verify SCSI IDs in the BIOS setup of your SCSI controller. Make sure the same SCSI ID isn't being used for more than one device on any channel of the controller.
The default SCSI ID for the scanner is 2. Here's a document I found on HP.com about how to change the SCSI ID of the scanner (wow, I didn't know you could do that):
http://www.hp.com/cposuppo
The second thing to check is termination. So, make sure the entire SCSI chain is properly terminated. There is a HP.com web page that says there is a problem using certain Adaptec cards with 50-68 pin cables and adapters with the HP ScanJet 6300 because the High Data Byte pins aren't terminated correctly (I gather those would be pins 51-68):
http://www.hp.com/cposuppo
And, is your CDRW internal or external? If it's internal, does the SCSI card support connecting devices to both the internal and external connections simultaneously? A lot of cards don't. Check your manual for the card.