🚀 go-pugleaf

SunOS 4.0 comes on QIC-24 tapes, so we were notified that most Sun
3s would need PROM upgrades to boot them.  The notice sent to
Canadians did not mention that 3/60s have a different series of
PROMs, so the revision numbers mentioned did not apply.

Anyway, I ordered a new PROM for my 3/60, but it did not work.  It
got a checksum error: within a couple of seconds of booting, the
LEDs froze, with only the high and low ones on.  This happened with
the next PROM I ordered too.  After this, Sun Canada checked their
3/60 PROM supply, and found that many were bad (perhaps all but the
master, which was OK).  They will dup it and send me another PROM
early next week.

So: if you ordered a 3/60 PROM from Sun Canada recently, and it
fails the checksum test, ask for a new one.  The part number of
these PROMs is 520-1665-05