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dw
Joined: 10 May 2008
Posts: 62
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 Posted:
Mon Apr 11, 2011 4:19 am |
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Hi everyone.
I have an old Packard Bell Legend 486 computer.
I have an Adaptec AHA-1520B/1522B SCSI Host Adapter (ISA).
I have an Iomega Zip 100 External SCSI drive
Problem: The Adaptec BIOS util (Ctrl+A) on startup will not recognize the zip drive when I run the embedded SCSI disk utilitiy.
This card I have has a special type of external connector in which I have a special converter to make it fit a centronics style port. Then I have a Centronics style SCSI cable attached to the card and the other end DB-25 connected to the zip port on the zip drive. The zip drive is set at SCSI id #5 and termination on. It is the only device I have attached. Still the device does not register for some reason.
I know that this board works because if I plug a Matsushita/Panasonic external CD-ROM drive to this thing it will recognize it without a problem. Any ideas on how to solve this problem?
Thanks in advance. |
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386er
Joined: 27 Jan 2007
Posts: 274
Location: USA
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Mon Apr 11, 2011 5:26 pm |
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the zip drive is the only scsi device?, not sure if its important or not but try id 0 for the zip drive, the cards are usually id 7 by default. mabey its the adapter? |
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dw
Joined: 10 May 2008
Posts: 62
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Wed Apr 13, 2011 12:16 am |
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| 386er wrote: |
| the zip drive is the only scsi device?, not sure if its important or not but try id 0 for the zip drive, the cards are usually id 7 by default. mabey its the adapter? |
Yes, the zip drive is the only scsi device. For getting this thing to work I have removed the CD-ROM from the chain. The zip drive has only two settings #5 or #6 and it has a built in termination switch. I cannot put the zip on 0.
The adapter should be okay because when I have the CD-ROM drive attached the adapter will see it and I can actually use the CD-ROM drive in Windows 98. Perhaps I don't have the right type of cable or perhaps the zip drive requires a newer SCSI adapter. |
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ryan
Joined: 19 Apr 2006
Posts: 261
Location: WisConSin
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Wed Apr 13, 2011 11:45 pm |
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I have to say as much as some people love SCSI, I always had troubles with it, unless there was only one drive in the string.
I would lean toward 2 possibilities
1. Termination issues, AKA if something is double terminated or terminated wrong = bad
2. ID/Detection issues, if the card doesn't see there is something sitting there or not on the ID it wants the drive is invisible on the chain.
Good Luck
Ryan |
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