john@anasazi.UUCP (John Moore) (03/14/86)
I have heard that you can upgrade a 1040ST to 4 Meg by swapping the
256K RAM's out and putting in 1 Meg RAM chips. Anyone know if this is true?
Also, is there any difference in external expansion connections on the
1040 vs the 520?
--
John Moore (NJ7E/XE1HDO)
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The opinions expressed here are obviously not mine, so they must be
someone else's.john@anasazi.UUCP (03/15/86)
In article <648@anasazi.UUCP> john@anasazi.UUCP (John Moore) writes: >I have heard that you can upgrade a 1040ST to 4 Meg by swapping the >256K RAM's out and putting in 1 Meg RAM chips. Anyone know if this is true? To answer my own question, it is true according to the interview in Byte magazine, so I'll post another question: The upgrade of the 1040ST to 4 meg involves swapping the 256K RAM's to 1 Meg. The 1 Megs have two more pins which the article said could be bent out. DO they need to be connected to something (like more address lines)?. Also, is there any reason this same trick cannot be done with a 520 (using piggybacked 1 Meg chips)? -- John Moore (NJ7E/XE1HDO) {decvax|ihnp4|hao}!noao!terak!anasazi!john {hao!noao|decvax|ihnp4|seismo}!terak!anasazi!john terak!anasazi!john@SEISMO.CSS.GOV (602) 861-7607 (day or evening) 7525 Clearwater Pkwy, Paradise Valley, AZ, 85253 (Home Address) The opinions expressed here are obviously not mine, so they must be someone else's.