Then check for broken/cold solder joints on the external SCSI Connector, the surrounding traces & digital glue. Lost of folks were very clumsy about how they handled upgrade hardware, the cases of compacts got way full and boards got banged around and torqued outta' shape.

There were many fumble fingered "mavens," back in the day, who shouldn't have been allowed to install a freakin' SIMM, much less have access to, let alone own a multimeter!

If 9" B&W CRT's were seriously dangerous, it might have helped to clean out the gene pool a little bit! :lol: