TEXT View Source
# ACER, INC.
IP25AB
Processor 80486SX/80486DX
Processor Speed 20/25/33MHz
Chip Set ALI
Video Chip Set None
Maximum Onboard Memory 32MB
Maximum Video Memory None
Cache None
BIOS Acer
Dimensions 220mm x 170mm
I/O Options None
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------+-------------+----------------+--------------|
| Power LED & | CN1 pins 1 | Turbo switch | CN1 pins 15 |
| keylock | - 5 | | - 17 |
|--------------+-------------+----------------+--------------|
| Speaker | CN1 pins 7 | Reset switch | CN1 pins 19 |
| | - 10 | | & 20 |
|--------------+-------------+----------------+--------------|
| Turbo LED | CN1 pins 12 | External | J3 |
| | & 13 | battery | |
|------------------------------------------------------------|
| Note: If system has a 12-pin connector, make sure red wire |
| is connected to pin 11. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+---------+------------|
| ยป | CMOS memory normal operation | JP1 | Open |
|---+---------------------------------+---------+------------|
| | CMOS memory clear | JP1 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (4) 256K x 9 | None |
|------------------+--------------------+--------------------|
| 2MB | (4) 256K x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 4MB | (4) 1M x 9 | None |
|------------------+--------------------+--------------------|
| 5MB | (4) 256K x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 5MB | (4) 1M x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | None |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JP2 | JP3 | JP4 |
|-------+------------+------------+--------------------------|
| 20MHz | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2, 3 & 4 closed |
| | closed | closed | |
|-------+------------+------------+--------------------------|
| 25MHz | Pins 1 & 2 | Pins 2 & 3 | Pins 3 & 4 closed |
| | closed | closed | |
|-------+------------+------------+--------------------------|
| 33MHz | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 closed |
| | closed | closed | |
+------------------------------------------------------------+