On Thu, 22 Apr 2021, Maciej W. Rozycki wrote: > NB, I have benchmarked the update with my DECstation, however my Malta > has not come up after a reboot last evening and neither it has after a few > remote power cycles. I have planned a visit in my lab next week anyway, > so I'll see what has happened there; hopefully I'm able to bring the board > back to life as I find it valuable for my purposes. I had to replace the > PSU it came with already a couple years back and the new one is supposedly > high-quality, so I fear it's the board itself. For the record I have put the Malta back in service now. It was weird: the YAMON status shown on the ASCII display was "E:P_UNKN", i.e. "Unknown PCI device on board (should never happen)" (according to the manual). Indeed I never saw that message before. By elimination I have tracked down the DEFPA FDDI network interface to be the culprit and upon a close inspection found a bent pin with the PFI ASIC (the PCI interface chip), a 160-pin 20-mil PQFP part. It was IDSEL shorting to RST_L, the adjacent pin. No wonder the card wreaked havoc with the system. Fixed by carefully moving the pins apart with a razor blade (always good to have one at hand!). Now I wonder how this card happened to work with the pin bent for some 15 years and only finally developed a short now. Weird indeed, and weirder even to see a second failure related to IC pins this year only. Maciej
