On Sun, Aug 2, 2026, 6:44 PM Jon Elson via cctalk <[email protected]> wrote:
> > The ground was the problem. For some CRAZY reason, pin 5 of > the 9-pin serial connector of the KA630-AA and cabinet kit > has a 1K Ohm resistance to system ground. I ran a clip lead > from the cabinet to pin 5 of the USB serial cable and then > the communication works. > > But, now, for the POST I get 7..6..5..4.. > > ?24 UNXINT > > consistently. Now, I don't know what to do about that. It > used to do that once in a while, but now it is on every > power-up. > > Anybody know what this means? > Unexpected Interrupt. I hit that once in the late 80s when i installed a new nic. But it's been so long i don't recall what I did. I know in VMS I had to do a SYSGEN, but i may have had to tell the boot roms... or maybe I had to change the csr... it's been a long time though... Warner >
