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# ACER, INC.
NBI ENHANCED GRAPHICS ADAPTER
Card Type Video card
Video Chip Set Unidentified
Maximum video Memory Unidentified
Video Type supported Monochrome, CGA, EGA
Highest Resolution supported 640 x 350
Data Bus 8-bit ISA
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|--------------------+-------+-----------------------+-------|
| 9-pin video port | CN1 | Reserved | CN3 |
|--------------------+-------+-----------------------+-------|
| Reserved | CN2 | Light pen connector | CN4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY TYPE SELECTION |
|------------------------------------------------------------|
| Setting | JP3 | JP4 |
|-----------------------------+---------------+--------------|
| Enhanced color display | Pins 2 & 3 | Unidentified |
| | closed | |
|-----------------------------+---------------+--------------|
| Monochrome or color display | Pins 2 & 3 | Unidentified |
| | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY TYPE CONFIGURATION (1) |
|------------------------------------------------------------|
| EGA | SW/1 | SW/2 | SW/3 | SW/4 |
|-------------------+----------+---------+---------+---------|
| Color display | On | Off | Off | On |
| 40x25 mode | | | | |
|-------------------+----------+---------+---------+---------|
| Color display | Off | Off | Off | On |
| 80x25 mode | | | | |
|-------------------+----------+---------+---------+---------|
| Emulation mode | On | On | On | Off |
|-------------------+----------+---------+---------+---------|
| Hi Res mode | Off | On | On | Off |
|------------------------------------------------------------|
| Note:The above settings apply when the Enhanced |
| Graphic Adapter is the primary adapter and MDA is the |
| secondary adapter. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY TYPE CONFIGURATION (2) |
|------------------------------------------------------------|
| EGA | CGA | SW/1 | SW/2 | SW/3 | SW/4 |
|--------------+----------+--------+--------+--------+-------|
| Monochrome | 40 x 25 | On | Off | On | Off |
| | mode | | | | |
|--------------+----------+--------+--------+--------+-------|
| Monochrome | 80 x 25 | Off | Off | On | Off |
| | mode | | | | |
|------------------------------------------------------------|
| Note:The above settings apply when the Enhanced |
| Graphic Adapter is the primary adapter and CGA is the |
| secondary adapter. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY TYPE CONFIGURATION (3) |
|------------------------------------------------------------|
| EGA | SW/1 | SW/2 | SW/3 | SW/4 |
|--------------------+---------+---------+---------+---------|
| Color display | On | On | On | On |
| 40x25 mode | | | | |
|--------------------+---------+---------+---------+---------|
| Color display | Off | On | On | On |
| 80x25 mode | | | | |
|--------------------+---------+---------+---------+---------|
| Emulation mode | On | Off | On | On |
|--------------------+---------+---------+---------+---------|
| Hi Res mode | Off | Off | On | On |
|------------------------------------------------------------|
| Note:The above settings apply when the Enhanced |
| Graphic Adapter is the secondary adapter and MDA is |
| the primary adapter. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY TYPE CONFIGURATION (4) |
|------------------------------------------------------------|
| EGA | CGA | SW/1 | SW/2 | SW/3 | SW/4 |
|--------------+------------+--------+-------+-------+-------|
| Monochrome | 40 x 25 | On | On | Off | On |
| | mode | | | | |
|--------------+------------+--------+-------+-------+-------|
| Monochrome | 80 x 25 | Off | On | Off | On |
| | mode | | | | |
|------------------------------------------------------------|
| Note:The above settings apply when the Enhanced |
| Graphic Adapter is the secondary adapter and CGA is |
| the primary adapter. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTES |
|------------------------------------------------------------|
| Whenever the Enhanced Graphic Adapter is used in |
| combination with another one of the adapters must be a |
| monochrome display. |
+------------------------------------------------------------+