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Old 11th Oct 2018, 7:49 pm   #28
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Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
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Default Re: 486 PC. Keyboard problem.

The PC misbehaved on the bench just as it had in the cabinet. I think I've tracked the problem down to a combination of dodgy floppy disks and dodgy floppy disk drives, both of which are in short supply here following a mass clear out a few years ago. I finally found a combination which worked reliably.

I then reinstalled the PC in the control cabinet connecting it to the cabinet's mains supply and the CRT monitor. I must have rebooted it successfully about 50 times during the course of the day without one failure. I won't believe it's finally fixed until it's been running for a couple of weeks without failure though.

The application software loaded OK, but unfortunately the PC won't talk to the machine. Next thing to do is find a way of checking out the (serial) com ports.
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