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# EVEREX SYSTEMS, INC.
STEP MP EV-2607
Processor 80386DX/80486DX (Depending on which CPU card is
used)
Processor 25/33MHz
Speed
Chip Set C & T
Max. Onboard 64MB
DRAM
SRAM Cache 64/256KB
BIOS Quadtel
Dimensions 330mm x 220mm
I/O Options Base card slots (3), CPU Card slot, external
memory card, SCSI card slots (2)
NPU Options 80387DX (Depending on which CPU card is used)
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| LED display | CN1 | Speaker | J22 |
|-------------------+----------+------------------+----------|
| Chassis fan power | J15 | Power good LEDs | LEDs |
|-------------------+----------+------------------+----------|
| SCSI B connector | J16 | 16-bit external | S1 |
| | | memory card | |
|-------------------+----------+------------------+----------|
| SCSI A connector | J17 | SCSI board slots | S2 & S3 |
|-------------------+----------+------------------+----------|
| Chassis fan power | J21 | Base card slots | S4, S5, |
| | | | & S6 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+----------+------------|
| » | I/O bus select ISA card set | J1 | closed |
|---+--------------------------------+----------+------------|
| | I/O bus select EISA card set | J1 | open |
+------------------------------------------------------------+
(IMG) IMG 2
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| Memory activity | CN1 | ECC fault | LED1 |
| indicator | | indicator LED | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|--------+------------+------------+------------+------------|
| 16MB | (4) 4M x 9 | NONE | NONE | NONE |
|--------+------------+------------+------------+------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
|--------+------------+------------+------------+------------|
| 48MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
|--------+------------+------------+------------+------------|
| 64MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
(IMG) IMG 3
+------------------------------------------------------------+
| NOTE |
|------------------------------------------------------------|
| Note:This card must be place in either slot 5 or 6 on the |
| system board only. |
| |
| If installing the card in slot 5 then resistors RP4, RP8, |
| & RP12 must be removed. |
| |
| If installing the card in slot 6 then |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| CPU activity | CN1 | CPU activity | LED1 |
| indicator connector | | indicator LED | |
|---------------------+----------+----------------+----------|
| SCSI connector | CN2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Cache |
|----------------------------+-------------------------------|
| 64KB | (8) 8K x 8 |
+------------------------------------------------------------+
(IMG) IMG 4
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| CPU activity | CN1 | RS422 Serial I/O | J3 |
| indicator | | connector | |
| connector | | | |
|-------------------+----------+------------------+----------|
| RS422 Serial I/O | J1 | RS422 Serial I/O | J4 |
| connector | | connector | |
|-------------------+----------+------------------+----------|
| RS422 Serial I/O | J2 | CPU activity | LED1 |
| connector | | indicator LED | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Cache |
|----------------------------+-------------------------------|
| 256KB | (8) 256K x 1 |
+------------------------------------------------------------+
(IMG) IMG 5
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| CPU activity | CN1 | CPU activity | LED1 |
| indicator connector | | indicator LED | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Cache |
|----------------------------+-------------------------------|
| 256KB | (8) 256K x 1 |
+------------------------------------------------------------+
(IMG) IMG 6
+------------------------------------------------------------+
| MEMORY ADDRESS CONFIGURATION |
|------------------------------------------------------------|
| Function | SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6 |SW1/7 |
|----------+-------+------+------+------+------+------+------|
| Disable | On | Off | Off | Off | Off | Off | Off |
| 8th MB | | | | | | | |
|----------+-------+------+------+------+------+------+------|
| Disable | Off | On | Off | Off | Off | Off | Off |
| 9th MB | | | | | | | |
|----------+-------+------+------+------+------+------+------|
| Disable | Off | Off | On | Off | Off | Off | Off |
| 10th MB | | | | | | | |
|----------+-------+------+------+------+------+------+------|
| Disable | Off | Off | Off | On | Off | Off | Off |
| 11th MB | | | | | | | |
|----------+-------+------+------+------+------+------+------|
| Disable | Off | Off | Off | Off | On | Off | Off |
| 12th MB | | | | | | | |
|----------+-------+------+------+------+------+------+------|
| Disable | Off | Off | Off | Off | Off | On | Off |
| 13th MB | | | | | | | |
|----------+-------+------+------+------+------+------+------|
| Disable | Off | Off | Off | Off | Off | Off | On |
| 14th MB | | | | | | | |
|------------------------------------------------------------|
|Note:Turning on one or more of the above switches will open |
|a window of addressed space for configuration of memory |
|mappd devices like network controllers and multiport cards. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| CPU activity | CN1 | CPU activity | LED1 |
| indicator connector | | indicator LED | |
|---------------------+----------+----------------+----------|
| Base CPU Ribbon | CN2 | | |
| connector | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Cache |
|----------------------------+-------------------------------|
| 256KB | (8) 256K x 1 |
+------------------------------------------------------------+
(IMG) IMG 7
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+-----------------+----------|
| Parallel port | CN1 | SCSI connector | CN4 |
|--------------------+----------+-----------------+----------|
| Serial port | CN2 | Reset button | CN5 |
|--------------------+----------+-----------------+----------|
| Paddle port | CN3 | Floppy drive | CN6 |
| connector | | interface | |
| (optional) | | | |
+------------------------------------------------------------+
(IMG) IMG 8
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------------+----------+---------------+----------|
| Serial port | CN1 | Floppy drive | CN3 |
| | | interface | |
|----------------------+----------+---------------+----------|
| Base CPU ribbon | CN2 | Reset switch | CN4 |
| connector | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|----------------------------------------+--------+----------|
| » | Montior type select color | J1 | Open |
|---+------------------------------------+--------+----------|
| | Monitor type select monochrome | J1 | Closed |
|---+------------------------------------+--------+----------|
| » | Floppy drive interface enabled | J2 | Open |
|---+------------------------------------+--------+----------|
| | Floppy drive interface disabled | J2 | Closed |
|---+------------------------------------+--------+----------|
| » | Serial port select COM1 | J3 | Open |
|---+------------------------------------+--------+----------|
| | Serial port select COM2 | J3 | Closed |
|---+------------------------------------+--------+----------|
| » | Factory configured - do not alter | J4 | Open |
+------------------------------------------------------------+