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# ZENITH
Z-505
Card Type Memory card
Maximum Onboard Memory 1MB DRAM
Data Bus 16-bit ISA
Card Size Full-length, full-height card
IMG IMG 1
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------------+-------+-----------|
| EMS enabled | SW1/3 | On |
|----------------------------------------+-------+-----------|
| EMS disabled | SW1/3 | Off |
|----------------------------------------+-------+-----------|
| Base system memory = 512KB | SW1/4 | Off |
|----------------------------------------+-------+-----------|
| Base system memory = 640KB | SW1/4 | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MEMORY BOARD NUMBER SELECTION |
|------------------------------------------------------------|
| Board number | SW1/1 | SW1/2 |
|-------------------+--------------------+-------------------|
| 0 | On | On |
|-------------------+--------------------+-------------------|
| 1 | On | Off |
|-------------------+--------------------+-------------------|
| 2 | Off | On |
|-------------------+--------------------+-------------------|
| 3 | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE ADDRESS SELECTION |
|------------------------------------------------------------|
| Memory block | SW1/5 | SW1/6 | SW1/7 | SW1/8 |
|--------------+-----------+-----------+----------+----------|
| 0 | On | On | On | On |
|--------------+-----------+-----------+----------+----------|
| 1 | Off | On | On | On |
|--------------+-----------+-----------+----------+----------|
| 2 | On | Off | On | On |
|--------------+-----------+-----------+----------+----------|
| 3 | Off | Off | On | On |
|--------------+-----------+-----------+----------+----------|
| 4 | On | On | Off | On |
|--------------+-----------+-----------+----------+----------|
| 5 | Off | On | Off | On |
|--------------+-----------+-----------+----------+----------|
| 6 | On | Off | Off | On |
|--------------+-----------+-----------+----------+----------|
| 7 | Off | Off | Off | On |
|--------------+-----------+-----------+----------+----------|
| 8 | On | On | On | Off |
|--------------+-----------+-----------+----------+----------|
| 9 | Off | On | On | Off |
|--------------+-----------+-----------+----------+----------|
| 10 | On | Off | On | Off |
|--------------+-----------+-----------+----------+----------|
| 11 | Off | Off | On | Off |
|--------------+-----------+-----------+----------+----------|
| 12 | On | On | Off | Off |
|--------------+-----------+-----------+----------+----------|
| 13 | Off | On | Off | Off |
|--------------+-----------+-----------+----------+----------|
| 14 | On | Off | Off | Off |
|--------------+-----------+-----------+----------+----------|
| 15 | Off | Off | Off | Off |
+------------------------------------------------------------+