Thanks Hese,
   My google fu was weak..thanks!
Just in case anyone needs them:
Microbotics 8-up simm board jumpers.
pic A  ==== pic z z5-z8
a1-a4  | no mem | 2-256 | 4-256 | 2-1m  | 4-1m  |
       ------------------------------------------
2 -256 |7654321 |7654 21|765  21|76 4 21|76   21| closed jumpers
a1,a2  | none   |    3  |   43  |  5 3  |  543  | open jumpers
       ------------------------------------------
4-256  |76      |7 54 21|7 5  21|7  4 21|7    21| closed jumpers
       |  54321 | 6  3  | 6 43  | 65 3  | 6543  | open jumpers
       ------------------------------------------
2-1m   | 654321 | 654 21| 65  21| 6 4 21| 6   21| closed jumpers
       |7       |7   3  |7  43  |7 5 3  |7 543  | open jumpers
       ------------------------------------------
4-1m   |  54321 |  54 21|  5  21|   4 21|     21| closed jumpers
       |76      |76  3  |76 43  |765 3  |76543  | open jumpers