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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Kitch on August 09, 2011, 06:32:33 AM

Title: Marpet M1207 Jumpers
Post by: Kitch on August 09, 2011, 06:32:33 AM

I recently bought an A1200 with a Marpet Developments 1207 RAM/FPU/RTC board fitted. I've just picked up a 8MB SIMM to replace the existing 4MB SIMM fitted to the board but I'm not sure what I need to set the jumpers to for the new 8MB SIMM. Can some one help me with the correct jumper settings?

Title: Re: Marpet M1207 Jumpers
Post by: MozzerFan on August 09, 2011, 06:54:10 AM

I recently tested this with my M1207 and I got it working setting all jumpers on pins 1-2 (8mb).
 
I switched back to 4 MB though, because it made my PCMCIA slot unuseable ( yes I tried with KS 3.0).

Title: Re: Marpet M1207 Jumpers
Post by: Kitch on August 09, 2011, 08:12:31 AM

Thanks for that, I set all the jumpers in a line closest to the 8MB inscription and it worked fine.