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Re: VAXstation 4000/90 help

On Mon, 29 Nov 2010, John Klos wrote:

 Is the memory compatable with the 4000/60?  [I've never actually tried.]

Yes. The kits are the same part number from Digital, and a few other places mention that they're compatible, too. Some model or another requires sets of four, and the 4000/60 only requires sets, but I tried a bank of four of the same size just in case.

I had always assumed the memory was different - based on the VAX hardware reference pages on www.netbsd.org.

  That gives the memory part numbers for the 4000/60 as:
Min 8MB, Max 104MB, installed in pairs, MS44L-AA 4 MB parity, MS44-DA 32 MB 

  And for the 4000/90A as:
MS44L-BC 16MB parity, MS44-DC 64 MB parity

The memory information for the 4000/90 and 4000/96 didn't have any part numbers, but should be the same as the 4000/90A.

If I get a chance, I'll try some 4000/60 memory in either the 4000/90 or 4000/90A and see if it works.

Michael L. Hitch                        mhitch%montana.edu@localhost
Computer Consultant
Information Technology Center
Montana State University        Bozeman, MT     USA

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