73 system problem?

brad at bradley.UUCP brad at bradley.UUCP
Tue Oct 16 23:31:00 AEST 1984


Here is a message that I recieved on that very same subject.  The
exchange program through DEC is going on until Dec, or so I understand.
You really have to get your DEC salesman to dig to help you, most don't
know or even heard about it, according to DEC the letters went out
in July, so if you haven't heard better given them a call.

Brad Smith
Text Processing/Bradley Unversity
-forward message-
There is a bug in some (9%) early J-11 chips, check the date code
on your CPU chip if your chip as made before May 1 1984, you may have the
problem.
  The date code is on the CPU end of the J-11 chip and is of the form
YYWW where YY is the year of Mfgr. and WW is the week, codes earlier than
8419 may have the fault.  The problem is very hard to reproduce as it
involves integer add/sub with certain values while a Cache miss or DMA Xfer
is in progress.  If your CPU fits the date code, get in touch with DEC. I'm
in the process of getting a copy of the actual letter posted to a 11/73
owning friend of mine, I hope to get it on monday.  Whenever I get it, I'll
post a copy to the net as a whole.  Keep in touch with me on this as there
are at least 3 11/73s on the net now, you 2 and cepu!ucla-an (just getting
going with 2.9, and a whole bunch of diskdrives).



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