You DEC old-timers out there will probably chuckle at my little 
"discovery", but I'm posting my findings for us who are "DEC challenged"....

Yesterday I was pulling my hair out trying to get my VAX 4000-500 to 
recognize an external RRD-43 CD-ROM that was attached to a KZQSA SCSI 
adapter. No matter what I did, it wouldn't recognize the fact that anything 
SCSI was connected.

The problem turned out to be the address that the KZQSA was set to. It was 
set to address 761400, and the 4000 was reporting the card to be a DEFQA, 
which to even a DEC newbie as myself, was VERY wrong. A search through the 
"VMS wizard" archives at Compaq.com turned up the statement that the KZQSA 
was shipped with a default address of 761300.

So I fiddled with the address jumpers and set it to 761300 and *voila*, the 
4000 found the KZQSA. I hooked the external SCSI enclosure to the card, and 
it found the CD-ROM.

It was able to boot VMS from the CD, and I'm on my way.

Again, don't laugh too hard, I hope this message helps others who are 
"Unibus Ignorant"....


         - Matt










Matthew Sell
Programmer
On Time Support, Inc.
www.ontimesupport.com
(281) 296-6066

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