Memory Card - jumper set - PCMCIA

[Tiago]

I received yestarday the 2nd RAM CARD,
"DKB1202 Amiga Expansion board with 8MB". The 1st i received i will sell to JLPedro.

I try this 8MB card yesterday and it work fine, but:

- to work with the 8MB SIMM, it has a conflict with the PCMCIA (it's writeen on the manual) i must set 8MB in the 3 jumper set

- if i work with 8MB SIMM but configure jumpers to 4MB then PCMCIA works.


It is all explained in the manual

The other 8Mb cards work like this?

[Buleste]

If I remember rightly the conflict between PCMCIA cards and memory expansions are only if there is no new CPU on board. Fast RAM if better than PCMCIA RAM so i would use that. It's all to do with the memory addressing but can't remember the specifics.

[JLPedro]

Yes it's right, the conflict it's only when using pcmcia ram, i think with other pcmcia periferals it's ok.

[Harrison]

Hmm... from what I remember, if you have an 8MB ram expansion in the A1200 (which isn't a CPU accelerator) then the PCMCIA conflict will actually stop anything from working in the PCMCIA slot. I seem to remember the squirrel SCSI interface I have wouldn't work with an 8MB expansion, but works fine with a 68030 with 32MB of ram.

[Tiago]

Well it work from pcmcia, but only 4mb from 8mb available.
but with jumper setting i can use the 8mb with no pcmcia
i just wanted to know it it was a rule for all ram cards.

[Harrison]

Only when using Ram only expansions. When an accelerator card is used (one that contains its own CPU) then the conflict doesn't happen. But some early accelerator cards did also have this problem so check before buying.