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# ACER, INC.
L90 & 940 GRAPHICS ACCELERATOR CARD
Data bus: 32-bit VL-bus
Size: Three-quarter length, full-height card
Hard drive Two IDE(AT) drives
supported:
Floppy drives Two 360KB, 720KB, 1.2MB, or 1.44MB
supported: drives
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|------------------------------------------+-----------------|
| 40-pin IDE(AT) connector | CN1 |
|------------------------------------------+-----------------|
| 34-pin cable connector - floppy drive | CN2 |
|------------------------------------------+-----------------|
| 10-pin serial port 1 internal | CN3 |
|------------------------------------------+-----------------|
| 10-pin serial port 2 - internal | CN4 |
|------------------------------------------+-----------------|
| 16-pin game port | CN5 |
|------------------------------------------+-----------------|
| 26-pin feature connector | CN6 |
|------------------------------------------+-----------------|
| 25-pin parallel port - external | CN7 |
|------------------------------------------+-----------------|
| 15-pin VGA connector - external | CN8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|-----------------------------------+--------------+---------|
| » | Local bus signal LRDY# | J3/pins 2 & | closed |
| | enabled | 3 | |
|---+-------------------------------+--------------+---------|
| | Local bus signal RDYRTN# | J3/pins 1 & | closed |
| | enabled | 2 | |
|---+-------------------------------+--------------+---------|
| » | IDE(AT) interface enabled | J7 | closed |
|---+-------------------------------+--------------+---------|
| | IDE(AT) interface disabled | J7 | open |
|---+-------------------------------+--------------+---------|
| » | CPU clock is <=33MHz | J11 | open |
|---+-------------------------------+--------------+---------|
| | CPU clock is >33MHz | J11 | closed |
|---+-------------------------------+--------------+---------|
| » | Parallel port IRQ 7 select | J14/pins 2 & | closed |
| | | 3 | |
|---+-------------------------------+--------------+---------|
| | Parallel port IRQ 5 select | J14/pins 1 & | closed |
| | | 2 | |
|---+-------------------------------+--------------+---------|
| » | Floppy drive interface | J15/pins 1 & | closed |
| | enabled | 2 | |
|---+-------------------------------+--------------+---------|
| | Floppy drive interface | J15/pins 2 & | closed |
| | disabled | 3 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VGA CONFIGURATION |
|------------------------------------------------------------|
| Mode | J4 | J5 |
|------------------+--------------------+--------------------|
| » | Enabled | pins 2 & 3 closed | pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| | Disabled | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 & 2 CONFIGURATION |
|------------------------------------------------------------|
| COM 1 | COM 2 | J12 | J13 |
|-------------+-------------+-------------------+------------|
| COM1 (3F8h) | COM2 (2F8h) | pins 2 & 3 closed | pins 1 & 2 |
| | | | closed |
|-------------+-------------+-------------------+------------|
| COM1 (3F8h) | COM4 (2E8h) | pins 1 & 2 closed | pins 1 & 2 |
| | | | closed |
|-------------+-------------+-------------------+------------|
| COM2 (2F8h) | COM3 (3E8h) | pins 1 & 2 closed | pins 2 & 3 |
| | | | closed |
|-------------+-------------+-------------------+------------|
| COM3 (3E8h) | COM4 (2E8h) | pins 2 & 3 closed | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 & 2 MODE CONFIGURATION |
|------------------------------------------------------------|
| COM 1 | COM 2 | J18 | J19 | J21 |
|----------+----------+------------+------------+------------|
| Enabled | Enabled | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | | closed | closed | closed |
|----------+----------+------------+------------+------------|
| Enabled | Disabled | pins 1 & 2 | pins 2 & 3 | pins 1 & 2 |
| | | closed | closed | closed |
|----------+----------+------------+------------+------------|
| Disabled | Enabled | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 |
| | | closed | closed | closed |
|----------+----------+------------+------------+------------|
| Disabled | Disabled | pins 2 & 3 | pins 2 & 3 | N/A |
| | | closed | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT ADDRESS SELECTION |
|------------------------------------------------------------|
| LPT | J16 | J17 |
|------------------+--------------------+--------------------|
| » | 378h | pins 1 & 2 closed | pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | 278h | pins 2 & 3 closed | pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | 2BCh | pins 1 & 2 closed | pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| | Disabled | pins 2 & 3 closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (2) 256 x 16 | none |
|------------------+--------------------+--------------------|
| 2MB | (2) 256 x 16 | (8) 256 x 4 |
+------------------------------------------------------------+