| Max Ram: |
8MB |
| Ram Type: |
1 Megabit DRAM Chips |
| Connection: |
Zorro II |
The A2058 is a full length Zorro II RAM expansion which configures all of it's RAM within the Zorro II address space. The board can be populated with either 2, 4 or 8 meg of RAM using 1 Megabit by 1 DRAMs, 120ns or faster.
Jumpers
| J1 |
J2 |
Memory Size |
RAM Location |
| Closed |
Closed |
2MB |
Surface Mounted |
| Closed |
Open |
4MB |
U16-U30 (every other one) and U55-U62 |
| Open |
Open |
8MB |
All locations |
| Open |
Closed |
* (See below) |
|
* When the 2058's auto-config hardware is disabled, the board can be automatically configured independantly of the Amiga OS. This is in board diagnostic mode only.
Board PAL information:
U10: 318063-02
U8: 318064-02
U5: 318067-02
U4: 318068-01
Taken from PCB A/W 312372 Rev 4
Engineer markings: JB/TF
Zorro AutoConfig: 514, 10