Glen Slick wrote:
My M8189 came with unlabeled 2716 EPROMs. I don't
know what version
that was. I don't think it could boot from MSCP. That would match
what Pete says.
Unless I missed it all of the M8189 versions listed here are 8K
versions, not 2K versions:
http://www.dunnington.u-net.com/public/DECROMs/ROMlist
23-339E2 and 23-340E2 are 2K devices. There's a typo in the listing
(corrected now!), but if you look at the files you'll see they're 2Kx8,
and of course the E2 suffix means 2Kx8.
I updated my M8189 to the 23-380E4 / 23-381E4 M8189-BG
(or -BH)
version. The only trick is you need to find 24-pin MCM68766 8KB
EPROMs, which aren't as common or cheap as most other EPROMs.
Or modify the sockets. I don't think there's quite enough room to
replace the 24-pin sockets with 28-pin on a KDF11-B card, but it can be
done with a carrier. For KDF11-A systems, there's room to do it on a
BDV11, and I have one that's been so modified. Of course with a BDV11
you can also re-jumper it to spread the 8K across 4 pairs of sockets.
--
Pete Peter Turnbull
Network Manager
University of York