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# STB SYSTEMS, INC.
MVP - 4X ADAPTER
Category Video
Video Types Supported XVGA
Video Processor Unidentified
Highest Resolution 1024 x 768
Supported
Data Bus Type 16-bit ISA
Memory Type DRAM
Maximum Onboard Memory 4MB (1MB of on-board DRAM per port)
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------------+----------+-------------+----------|
| 37-pin cable connector | P1 | VGA feature | P3 |
| | | connector | |
|------------------------+----------+-------------+----------|
| Refresh signal | P2 | | |
| synchronization | | | |
| connector | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CRYSTAL FREQUENCY SELECTION |
|------------------------------------------------------------|
| Setting | J1 |
|----------------------------+-------------------------------|
| » | Master | Pins 1 & 2 closed |
|---+------------------------+-------------------------------|
| | Slave | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MONOCHROME SUPPORT CONFIGURATION |
|------------------------------------------------------------|
| Setting | J3 |
|----------------------------+-------------------------------|
| » | Off | Pins 2 & 3 closed |
|-----+----------------------+-------------------------------|
| | On | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | Board | SW1/2 | SW1/3 |
|---------------+--------------+--------------+--------------|
| C3C3h | 1 | Off | Off |
|---------------+--------------+--------------+--------------|
| C3C3h | 2 | Off | On |
|---------------+--------------+--------------+--------------|
| CBC3h | 3 | On | Off |
|---------------+--------------+--------------+--------------|
| CBC3h | 4 | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FACTORY CONFIGURED - DO NOT ALTER |
|------------------------------------------------------------|
| Jumper/Switch | Position |
|----------------------------+-------------------------------|
| J2 | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| SW1/1 | Off |
|----------------------------+-------------------------------|
| SW1/4 | Off |
|----------------------------+-------------------------------|
| SW1/5 | Off |
|----------------------------+-------------------------------|
| SW1/6 | Off |
|----------------------------+-------------------------------|
| SW1/7 | Off |
|----------------------------+-------------------------------|
| SW1/8 | Off |
+------------------------------------------------------------+