OctoRAM Memory upgrade

[ltchean@iss.nus.sg (Lim Thye Chean)]

Hi, any OctoRAM users out there?

I lost my OctoRAM manual, so I have to ask this in InterNet:

I am now using 2MB on my RAM card, all 8 rows filled with 256K simms. I plan
to upgrade to at least 4MB.

1. Can I upgrade to more than 4MB?
2. Do I have to throw away all 8 rows of 256K simms and used all 1MB simms?
3. Can I mixed both simms? For example, reserved 6 rows of 256K simms
   (6 x 256K = 1.5MB), and used 2 rows of 1MB simms to get a total of
   3.5MB? Or reserved 4 rows of 256K simms (4 x 256K = 1MB) and used 4
   rows of 1MB simms to get 5MB?
4. Can I have the dip-switch configuration? 
5. What precautions should I take? 

Thanks for any suggestion. 


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