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# DTK COMPUTER, INC.
PTI-223D
Card Type Video card
Video Chip Set Trident
Maximum Video Memory 1MB DRAM
Video Types Supported CGA, Monochrome, EGA, VGA
Highest Resolution Supported 1024 x 768,
Data Bus 16-bit ISA
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------+-------+-------------------+-------|
| 15-pin analog video | CN1 | Feature connector | CN2 |
| port | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|------------------------------------+-------+---------------|
| » | Standard monitor detection | J6 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| | Non-standard monitor detection | J6 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| » | Default scan rate | SW3 | Closed |
|---+--------------------------------+-------+---------------|
| | 48.7 Khz scan rate | SW3 | Open |
|---+--------------------------------+-------+---------------|
| » | Autodetect enabled | SW4 | Open |
|---+--------------------------------+-------+---------------|
| | Autodetect disabled | SW4 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION (DRAM) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|-----------+----------------+---------------+---------------|
| 256KB | (2) 256KB x 4 | None | None |
|-----------+----------------+---------------+---------------|
| 512KB | (2) 256KB x 4 | (2) 256KB x 4 | None |
|-----------+----------------+---------------+---------------|
| 1MB | (2) 256KB x 4 | (2) 256KB x 4 | (4) 256KB x 4 |
|------------------------------------------------------------|
| Note: Exact location of memory banks is unidentified |
+------------------------------------------------------------+
+------------------------------------------------------------+
| IRQ INTERRUPT SELECTION |
|------------------------------------------------------------|
| Setting | J1 |
|--------------------------------------+---------------------|
| » | IRQ9 disabled | Pins 2 & 3 closed |
|---+----------------------------------+---------------------|
| | IRQ9 enabled | Pins 1 & 2 closed |
+------------------------------------------------------------+