Donkey Kong Board

is there a difference between dk and dk3 boards other than roms?

Yes, plenty. Vast differences in audio hardware between all 3, for one.

Although curiously enough, all 3 DK's can be run on the same VIDEO PCB (back half of 2-board stacks). I have seen JR's with DK VIDEO PCBs, and DK3's with JR VIDEO PCBs. To run DK3, you need to jumper a RAM leg to the bank of 4 EPROMs (to facilitate addressing of the larger ROMs), JR I'm not sure if it requires anything. I'm frankly surprised this has not been brought up before, haven't found any info other than what I have gleaned myself. This is surely why DoubleDK boards are easily modded onto JR boards, and makes me wonder about the feasibility of a TripleDK run on DK3.... Not that I would consider running one (as with Double), but it sure would be cool.

/me scurries off to patent office
 
Yes, plenty. Vast differences in audio hardware between all 3, for one.

Although curiously enough, all 3 DK's can be run on the same VIDEO PCB (back half of 2-board stacks). I have seen JR's with DK VIDEO PCBs, and DK3's with JR VIDEO PCBs. To run DK3, you need to jumper a RAM leg to the bank of 4 EPROMs (to facilitate addressing of the larger ROMs), JR I'm not sure if it requires anything. I'm frankly surprised this has not been brought up before, haven't found any info other than what I have gleaned myself. This is surely why DoubleDK boards are easily modded onto JR boards, and makes me wonder about the feasibility of a TripleDK run on DK3.... Not that I would consider running one (as with Double), but it sure would be cool.

/me scurries off to patent office

i ask because i got 2 sets of dk3 boards in a stack of nintendo boards(bought for mds to go into red tent) and id rather get a dk

Sorry for the highjack rob!
 
dc2010 : PM me if you want to part with either or both of those, I am looking for an actual DKC1 backboard (DK3 VIDEO) to run some tests. Screenprinted as such, since the conversion boards I have come across have factory-looking stickers relabeling the backboards.

robgest : I have a DK board fresh out of the gates with a shiny new CPU, new color PROMs, and more. PM sent.
 
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