This accelerator is considered my many to be the first 3rd-party 68040 board with a memory expansion for the A3000 at the time of release.
| Processor: |
040@28Mhz, 040@33Mhz or 040@35Mhz |
| FPU: |
Internal |
| MMU: |
Internal |
| Max Ram: |
32MB |
| Ram Type: |
4 x 30pin SIMM slots (Supports Static Column, Fast Page of Nibble RAM) |
In order to use this card, you require at least Kickstart 2.04.
Jumpers
There are 5 banks of jumpers on the Mercury as follows.
(O = Open, X = Closed)
Jumper bank A (Memory Speed)
| 33Mhz |
28Mhz |
Bank A |
| 40ns |
60ns |
X X |
| 60ns |
80ns |
X O |
| 80ns |
100ns |
O X |
Jumper bank B (Memory Configuration)
| Memory |
1MB x 8 |
4MB x 8 |
Bank 0 |
Bank 1 |
Jumpers |
| 0MB |
NONE |
NONE |
NONE |
NONE |
O X X X |
| 4MB |
4 |
NONE |
1MB x 8 |
NONE |
O X O X |
| 8MB |
8 |
NONE |
1MB x 8 |
1MB x 8 |
O X O O |
| 16MB |
NONE |
4 |
4MB x 8 |
NONE |
O O X O |
| 20MB |
4 |
4 |
4MB x 8 |
1MB x 8 |
O O O X |
| 20MB |
4 |
4 |
1MB x 8 |
4MB x 8 |
O O X X |
| 32MB |
NONE |
8 |
4MB x 8 |
4MB x 8 |
O O O O |
Jumper Bank C (Processor Settings)
| Jumper |
Open |
Closed |
| C1 |
Use the 040 on the accelerator (default) |
Use the motherboard processor |
| C2 |
Cache Disabled |
Cache Enabled (default) |
| C3 |
Off-Board Burst Mode Enabled |
Off-Board Burst Mode Disabled (default) |
| C4 |
On-Board Burst Mode Enabled |
On-Board Burst Mode Disabled (default) |
Jumper bank D
| Jumper |
Open |
Closed |
| D1 |
(Default) |
DO NOT CLOSE |
| D2 |
Fast ROM Enabled (default) |
Fast ROM Disabled |
| C3 |
Off-Board Burst Mode Enabled |
Off-Board Burst Mode Disabled (default) |
| C4 |
On-Board Burst Mode Enabled |
On-Board Burst Mode Disabled (default) |
Jumper bank E is reserved.