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# STB SYSTEMS, INC.
POWERGRAPH C33
Card Type Video card
Video Chip Set Western Digital
Maximum Video Memory 2MB DRAM
Video Types Supported XVGA
Highest Resolution Supported 1280 x 1024
Data Bus 32-bit VESA Local Bus
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------+-------+-------------------+-------|
| 15-pin analog video | CN1 | Feature connector | CN2 |
| port | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------------+-------+-----------|
| » | Standard fonts | JP1/5 | Open |
|---+------------------------------------+-------+-----------|
| | TUV fonts | JP1/5 | Closed |
|---+------------------------------------+-------+-----------|
| » | Vesa bus enabled for 80486 systems | W1 | Pin 2-3 |
|---+------------------------------------+-------+-----------|
| | Vesa bus enabled for 80386 systems | W1 | Pin 1-2 |
|---+------------------------------------+-------+-----------|
| | B/C Disconnect | W2 | Pin 1-2 |
|---+------------------------------------+-------+-----------|
| | B/C Connect | W2 | Pin 2-3 |
|------------------------------------------------------------|
| Note: TUV is the German standard for character spacing. |
| May not be compatible with some DOS applications |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Note: Location of upgradable DRAM ports unavailable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REFRESH RATE (800X600, 16 COLORS) |
|------------------------------------------------------------|
| Vertical | Horizontal | Setting | JP1/1 | JP1/2 |
|-----------+------------+---------------+---------+---------|
| 56 Hz | 35.3 kHz | Interlaced | Open | Open |
|-----------+------------+---------------+---------+---------|
| 56 Hz | 35.3 kHz | Noninterlaced | Closed | Closed |
|-----------+------------+---------------+---------+---------|
| 60 Hz | 38.0 kHz | Noninterlaced | Open | Closed |
|-----------+------------+---------------+---------+---------|
| 72 Hz | 48.2 kHz | Noninterlaced | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REFRESH RATE (1024X768) |
|------------------------------------------------------------|
| Vertical | Horizontal | Setting | JP1/3 | JP1/4 |
|-----------+------------+---------------+---------+---------|
| 60 Hz | 48.5 kHz | Noninterlaced | Open | Closed |
|-----------+------------+---------------+---------+---------|
| 70 Hz | 56.0 kHz | Noninterlaced | Closed | Open |
|-----------+------------+---------------+---------+---------|
| 72 Hz | 59.7 kHz | Noninterlaced | Closed | Closed |
|-----------+------------+---------------+---------+---------|
| 86.7 Hz | 35.4 kHz | Interlaced | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTES |
|------------------------------------------------------------|
| The settings for JP2/1-3 are undetermined. Do not alter |
| from factory settings, or refer to documentation. |
+------------------------------------------------------------+