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- In article <4hl59p$bfd@nntp1.best.com> (Timothy Aston) writes:
- > I am planning on upgrading the RAM in my A3000 soon, however before I do
- > I have some questions, given that my configuration is a little on the odd
- > side...
- >
- > I currently have 6 MB of RAM in my A3000 (not T), 2 MB of chip RAM and 4
- > MB of fast. My fast RAM all comes from 1x4Mb DIPs (yes, DIPs) that fill
- > up my DIP fast RAM bank. This is not documented as being an option, but
- > it does in fact work just fine, except for the fact that I have to add
- > the NOCACHE option to SetPatch (although I can then do CPU CACHE and
- > things are OK, in fact I put that command right after SetPatch in my
- > Startup-Sequence). I have always wondered why this may be, but no one
- > has been able to give me a good answer yet.
-
- Page detect mode fails under 2.x with old Ramsey & DMAC chips.
-
- > Anyways, that's sort of an side from my real questions.
- > - First of all, will 1x4Mb ZIPs work with these 1x4Mb DIPs?
-
- Yes, in banks 2-4.
-
- > - Secondly, is it not true that all the RAM chips must be of the same
- > type (static column, page mode, whatever)?
-
- Not always. If the first bank (or first chip) is page mode, all the rest
- will be treated as page mode and SC chips will work in page mode. If the
- first bank is SC, then all must be SC mode chips.
-
- > - Thirdly, I have no idea what type the RAM is that I have now, how can
- > I find out?
-
- Due to the above (NOCACHE option required), they must be page mode DIPS.
- If the chip number is something like xxx400-xx then they are page mode.
-
- --
- Cheers,
- ---
- + _ ____________ tm Dale Currie ____ ___ _ +
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