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- From: zrepachol@cc.curtin.edu.au
- Newsgroups: vmsnet.pdp-11
- Subject: Re: [11/23] Please identify this board
- Message-ID: <1993Jan24.071927.1@cc.curtin.edu.au>
- Date: 23 Jan 93 22:19:27 GMT
- References: <1993Jan22.205405.2341@cc.gatech.edu>
- Sender: news@cujo.curtin.edu.au (News Manager)
- Organization: Curtin University of Technology
- Lines: 20
-
- In article <1993Jan22.205405.2341@cc.gatech.edu>, gregh@cc.gatech.edu (Greg Hankins) writes:
- > I've just received this pdp-11/23, and I'm in the process of figuring out
- > what all the boards in it are. I have all of the DEC handbooks, so I've
- > identified all the DEC boards, but there are 2 of these boards that I
- > can't identify.
- >
- > These boards are double slot size, with white "tabs" on the end of them.
- > On those tabs are black "W" looking things, or it could be a "3". The end
- > towards the bus connectors has 2 things stamped on it, "MSC 4601", and
- > "303-0171", and also a serial number of some sort. On the other end,
- > there is a very heavy 4x8 array of Motorola MCM4116AC25 socketed chips.
- >
- > I think that this can only be a memory board...? It has no I/O connectors
- > of any kind.
-
- Yep. 16 KW ( 32 KB ) Almost certainly 18 bit. See if you can get >256K boards
- ( 22 bit addressing ). Virtualy ever 11/23 had 22-bit except a few very rare
- rev C boards. Not that a certain company would admit to it mind.
-
- ~Paul
-