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# UNIDENTIFIED
CIRRUS GD5428
Card Type Video card
Video Chip Set Cirrus Logic
Maximum Video Memory 2MB
Data Bus 32-bit VESA Local Bus
Video Types Supported VGA
Highest Resolution Supported 1280 x 1024
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------+-------+-------------------+-------|
| 15-pin video analog | CN1 | Feature connector | CN2 |
| video port | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | IRQ2 disabled | JP1 | Pins 2 & 3 |
| | | | closed |
|----+--------------------------------+-------+--------------|
| | IRQ2 enabled | JP1 | Pins 1 & 2 |
| | | | closed |
|----+--------------------------------+-------+--------------|
| » | Main memory map decoder size | JP2 | Pins 1 & 2 |
| | select 64MB | | closed |
|----+--------------------------------+-------+--------------|
| | Main memory map decoder size | JP2 | Pins 2 & 3 |
| | select 128B | | closed |
|----+--------------------------------+-------+--------------|
| » | RAMDAC shadow disabled | JP3 | Pins 2 & 3 |
| | | | closed |
|----+--------------------------------+-------+--------------|
| | RAMDAC shadow enabled | JP3 | Pins 1 & 2 |
| | | | closed |
|----+--------------------------------+-------+--------------|
| » | Factory configured – do not | CN3 | Unidentified |
| | alter | | |
|----+--------------------------------+-------+--------------|
| » | Factory configured – do not | SO | Unidentified |
| | alter | | |
|----+--------------------------------+-------+--------------|
| » | Factory configured – do not | S1 | Unidentified |
| | alter | | |
|------------------------------------------------------------|
| Note: CN3, S0 & S1 are optional and may not be present. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|-------------------+--------------------+-------------------|
| 1MB | 1MB | None |
|-------------------+--------------------+-------------------|
| 1MB | 1MB | 1MB |
|------------------------------------------------------------|
| Note: The size of the chips is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | JP4/pins 1 & 2 | JP4/pins 3 & 4 | JP4/pins 5 & |
| | | | 6 |
|----------+----------------+----------------+---------------|
| C800 | Closed | Closed | Closed |
|----------+----------------+----------------+---------------|
| CC00 | Open | Closed | Closed |
|----------+----------------+----------------+---------------|
| D000 | Closed | Open | Closed |
|----------+----------------+----------------+---------------|
| D800 | Open | Open | Closed |
|----------+----------------+----------------+---------------|
| DC00 | Closed | Closed | Open |
|----------+----------------+----------------+---------------|
| E000 | Open | Closed | Open |
|----------+----------------+----------------+---------------|
| E800 | Closed | Open | Open |
|----------+----------------+----------------+---------------|
| Disabled | Open | Open | Open |
+------------------------------------------------------------+