Jockelill
Well-known member
Does anyone have schematics for the Micromac IIsi -> IIci Cache/PDS adapter? I'm trying to build one (for my IIsi), and while both the PDS and Cache is documented in the developer notes, I can see that several of the pins on the cache slot which are marked at N/C in the documentation are actually connected 
.
I've worked of the two pictures below but realizd that the original board also has inner signal layers making it a bit harder to retrace. I also needed to move the cache slot since otherwise @Melkhior 's nice graphics card won't fit (there is space below).
I'm guessing the original board is actually 6 layers (4 signal, ground and 5V plane) since it does not have any visible vias at all.
.I've worked of the two pictures below but realizd that the original board also has inner signal layers making it a bit harder to retrace. I also needed to move the cache slot since otherwise @Melkhior 's nice graphics card won't fit (there is space below).
I'm guessing the original board is actually 6 layers (4 signal, ground and 5V plane) since it does not have any visible vias at all.
