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# EVEREX SYSTEMS, INC.
EV-390
+------------------------------------------------------------+
|------------------------------------------------------------|
| Data bus: | 8-bit, ISA |
|--------------------------+---------------------------------|
| Size: | Full-length, full-height card |
|--------------------------+---------------------------------|
| Hard drive supported: | Two MFM ST506/412 drives |
|--------------------------+---------------------------------|
| Floppy drives supported: | Four 360KB drives |
+------------------------------------------------------------+
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-------------------------------------------------+----------|
| 34-pin control cable connector - hard drive | J1 |
|-------------------------------------------------+----------|
| 20-pin data cable connector - drive 1 | J2 |
|-------------------------------------------------+----------|
| 20-pin data cable connector - drive 2 | J3 |
|-------------------------------------------------+----------|
| 37-pin external drive connector | J4 |
|-------------------------------------------------+----------|
| 34-pin control cable connector - floppy drive 1 | J5 |
|-------------------------------------------------+----------|
| 34-pin control cable connector - floppy drive 0 | J6 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|-------------------------------------+------------+---------|
| » | Floppy drives enabled | W10 | Closed |
|---+---------------------------------+------------+---------|
| | Floppy drives disabled | W10 | Open |
|---+---------------------------------+------------+---------|
| » | Factory configured - do not | SW1/jumper | N/A |
| | alter | 5 | |
|---+---------------------------------+------------+---------|
| » | Factory configured - do not | SW1/jumper | N/A |
| | alter | 6 | |
|---+---------------------------------+------------+---------|
| » | Factory configured - do not | SW1/jumper | N/A |
| | alter | 7 | |
|---+---------------------------------+------------+---------|
| » | Factory configured - do not | SW1/jumper | N/A |
| | alter | 8 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 3.92A/3.93 EPROM CHIP DRIVE FORMATS - SW1 |
|------------------------------------------------------------|
|Capacity|Heads|Cylinders|Drive 1 |Drive 2 | |
|--------+-----+---------+--------+--------+-----------------|
| | | |Jumper 3|Jumper 4|Jumper 1|Jumper 2|
|--------+-----+---------+--------+--------+--------+--------|
| 10MB | 4 | 306 | Open | Open | Open | Open |
|--------+-----+---------+--------+--------+--------+--------|
| 10.7MB | 2 | 615 | Closed | Open | Closed | Open |
|--------+-----+---------+--------+--------+--------+--------|
| 21.4MB | 4 | 615 | Open | Closed | Open | Closed |
|--------+-----+---------+--------+--------+--------+--------|
| 31.9MB | 5 | 733 | Closed | Closed | Closed | Closed |
|--------+-----+---------+--------+--------+--------+--------|
| 42.5MB | 5 | 977 | Closed | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 3.94 EPROM CHIP DRIVE FORMATS - SW1 |
|------------------------------------------------------------|
|Capacity|Heads|Cylinders|Drive 1 |Drive 2 | |
|--------+-----+---------+--------+--------+-----------------|
| | | |Jumper 3|Jumper 4|Jumper 1|Jumper 2|
|--------+-----+---------+--------+--------+--------+--------|
| 10MB | 4 | 306 | Open | Open | Open | Open |
|--------+-----+---------+--------+--------+--------+--------|
| 42MB | 8 | 615 | Closed | Open | Closed | Open |
|--------+-----+---------+--------+--------+--------+--------|
| 21.4MB | 4 | 615 | Open | Closed | Open | Closed |
|--------+-----+---------+--------+--------+--------+--------|
| 42.8MB | 6 | 820 | Closed | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 3.95 EPROM CHIP DRIVE FORMATS - SW1 |
|------------------------------------------------------------|
|Capacity|Heads|Cylinders|Drive 1 |Drive 2 | |
|--------+-----+---------+--------+--------+-----------------|
| | | |Jumper 3|Jumper 4|Jumper 1|Jumper 2|
|--------+-----+---------+--------+--------+--------+--------|
| 80.2MB | 9 | 1024 | Open | Open | Open | Open |
|--------+-----+---------+--------+--------+--------+--------|
| 42MB | 8 | 615 | Closed | Open | Closed | Open |
|--------+-----+---------+--------+--------+--------+--------|
| 21.4MB | 4 | 615 | Open | Closed | Open | Closed |
|--------+-----+---------+--------+--------+--------+--------|
| 42.8MB | 6 | 820 | Closed | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 3.96 EPROM CHIP DRIVE FORMATS - SW1 |
|------------------------------------------------------------|
|Capacity|Heads|Cylinders|Drive 1 |Drive 2 | |
|--------+-----+---------+--------+--------+-----------------|
| | | |Jumper 3|Jumper 4|Jumper 1|Jumper 2|
|--------+-----+---------+--------+--------+--------+--------|
| 44.5MB | 5 | 1024 | Open | Open | Open | Open |
|--------+-----+---------+--------+--------+--------+--------|
| 71.3MB | 8 | 1024 | Closed | Open | Closed | Open |
|--------+-----+---------+--------+--------+--------+--------|
| 21.4MB | 4 | 615 | Open | Closed | Open | Closed |
|--------+-----+---------+--------+--------+--------+--------|
| 31.9MB | 5 | 733 | Closed | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 3.97 EPROM CHIP DRIVE FORMATS - SW1 |
|------------------------------------------------------------|
|Capacity|Heads|Cylinders|Drive 1 |Drive 2 | |
|--------+-----+---------+--------+--------+-----------------|
| | | |Jumper 3|Jumper 4|Jumper 1|Jumper 2|
|--------+-----+---------+--------+--------+--------+--------|
| 42.2MB | 6 | 809 | Open | Open | Open | Open |
|--------+-----+---------+--------+--------+--------+--------|
| 10.7MB | 2 | 615 | Closed | Open | Closed | Open |
|--------+-----+---------+--------+--------+--------+--------|
| 21.4MB | 4 | 615 | Open | Closed | Open | Closed |
|--------+-----+---------+--------+--------+--------+--------|
| 31.9MB | 5 | 733 | Closed | Closed | Closed | Closed |
|--------+-----+---------+--------+--------+--------+--------|
| 42.5MB | 5 | 977 | Closed | Closed | Closed | Closed |
+------------------------------------------------------------+