(TXT) View Source
# ACER, INC.
ACERMATE 486
Device Mainboard
Type
Processor CX486/IBM486/TI486/80486SX/AM486DX/80486DX/AM486DX2/
80486DX2/AM486DX4/80486DX4/P24T
Processor 25/33/50(internal)/66(internal)/100(internal)MHz
Speed
Chip Set Unidentified
Video Chip Cirrus Logic
Set
Maximum 36MB
Onboard
Memory
Maximum 2MB
Video
Memory
Cache 128/256KB
BIOS Unidentified
Dimensions 330mm x 218mm
I/O Floppy drive interface, IDE interfaces (2), parallel
Options port, PS/2 mouse port, serial ports (2), riser slot,
VGA port, VGA feature connector
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Chassis fan power | C1 | IDE interface 1 | CN7 |
|-------------------+----------+------------------+----------|
| VGA port | CN1 | Floppy drive | CN8 |
| | | interface | |
|-------------------+----------+------------------+----------|
| Parallel port | CN2 | VGA feature | CN9 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN3 | Daughter board | JP44 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN4 | Daughter board | JP45 |
| | | connector | |
|-------------------+----------+------------------+----------|
| PS/2 mouse port | CN5 | Riser slot | SL1 |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN6 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Factory configured - do not | J1 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | J2 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | J3 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP1 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| | Password enabled | JP2 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Password disabled | JP2 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP4 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| | On board video enabled | JP14 | Closed |
|---+---------------------------------+-------+--------------|
| | On board video disabled | JP14 | Open |
|---+---------------------------------+-------+--------------|
| | IDE interface enabled | JP16 | Open |
|---+---------------------------------+-------+--------------|
| | IDE interface disabled | JP16 | Closed |
|---+---------------------------------+-------+--------------|
| | On board I/O enabled | JP21 | Closed |
|---+---------------------------------+-------+--------------|
| | On board I/O disabled | JP21 | Open |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP22 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP29 | Unidentified |
| | alter | | |
|------------------------------------------------------------|
| Note: The location of JP16 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|-------------+--------------+---------------+---------------|
| 4MB | 4MB | None | None |
|-------------+--------------+---------------+---------------|
| 5MB | 4MB | (1) 256K x 36 | None |
|-------------+--------------+---------------+---------------|
| 6MB | 4MB | (1) 256K x 36 | (1) 256K x 36 |
|-------------+--------------+---------------+---------------|
| 7MB | 4MB | (1) 256K x 36 | (1) 512K x 36 |
|-------------+--------------+---------------+---------------|
| 8MB | 4MB | (1) 1M x 36 | None |
|-------------+--------------+---------------+---------------|
| 9MB | 4MB | (1) 1M x 36 | (1) 256K x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION (CON'T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|----------+------------+-----------------+------------------|
| 10MB | 4MB | (1) 1M x 36 | (1) 512K x 36 |
|----------+------------+-----------------+------------------|
| 12MB | 4MB | (1) 1M x 36 | (1) 1M x 36 |
|----------+------------+-----------------+------------------|
| 16MB | 4MB | (1) 1M x 36 | (1) 2M x 36 |
|----------+------------+-----------------+------------------|
| 20MB | 4MB | (1) 4M x 36 | None |
|----------+------------+-----------------+------------------|
| 21MB | 4MB | (1) 4M x 36 | (1) 256K x 36 |
|----------+------------+-----------------+------------------|
| 22MB | 4MB | (1) 4M x 36 | (1) 512K x 36 |
|----------+------------+-----------------+------------------|
| 24MB | 4MB | (1) 4M x 36 | (1) 1M x 36 |
|----------+------------+-----------------+------------------|
| 28MB | 4MB | (1) 4M x 36 | (1) 2M x 36 |
|----------+------------+-----------------+------------------|
| 36MB | 4MB | (1) 4M x 36 | (1) 4M x 36 |
|------------------------------------------------------------|
| Note: Bank 0 is factory installed and is not configurable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP28 |
|-------------------------------+----------------------------|
| On board memory enabled | Pins 1 & 2 closed |
|-------------------------------+----------------------------|
| On board memory disabled | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | None | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP24 | JP25 | JP26 |
|------------+-------------+-------------+-------------------|
| 128KB | Open | Closed | Pins 1 & 2 closed |
|------------+-------------+-------------+-------------------|
| 256KB | Closed | Closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|-------------+--------------+---------------+---------------|
| 512KB | 512KB | None | None |
|-------------+--------------+---------------+---------------|
| 1MB | 512KB | (4) 256K x 4 | None |
|-------------+--------------+---------------+---------------|
| 2MB | 512KB | (4) 256K x 4 | (2) 256K x 16 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | CN14 | JP10 | JP17 | JP19 |
|---------+-------------+------------+------------+----------|
| 25MHz | Pins 4 & 8 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & |
| | closed | closed | closed | 3 closed |
|---------+-------------+------------+------------+----------|
| 33MHz | Pins 3 & 7 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & |
| | closed | closed | closed | 3 closed |
|---------+-------------+------------+------------+----------|
| 50iMHz | Pins 4 & 8 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & |
| | closed | closed | closed | 3 closed |
|---------+-------------+------------+------------+----------|
| 66iMHz | Pins 3 & 7 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & |
| | closed | closed | closed | 3 closed |
|---------+-------------+------------+------------+----------|
| 100iMHz | Pins 3 & 7 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & |
| | closed | closed | closed | 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP11 | JP12 | JP13 | JP18 | JP20 |
|----------------+---------+--------+--------+-------+-------|
| CX486 | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 |
|----------------+---------+--------+--------+-------+-------|
| IBM486 | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 |
|----------------+---------+--------+--------+-------+-------|
| TI486 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
|----------------+---------+--------+--------+-------+-------|
| 80486SX | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|----------------+---------+--------+--------+-------+-------|
| AM486DX | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|----------------+---------+--------+--------+-------+-------|
| 80486DX | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|----------------+---------+--------+--------+-------+-------|
| AM486DX2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|----------------+---------+--------+--------+-------+-------|
| 80486DX2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|----------------+---------+--------+--------+-------+-------|
| 80486DX2 (WB) | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 |
|----------------+---------+--------+--------+-------+-------|
| AM486DX4 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|----------------+---------+--------+--------+-------+-------|
| 80486DX4 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|----------------+---------+--------+--------+-------+-------|
| 80486DX4 (WB) | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 |
|----------------+---------+--------+--------+-------+-------|
| P24T | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON'T) |
|------------------------------------------------------------|
| Type | JP30 | JP31 | JP32 | JP33 | JP34 |
|---------------+---------+--------+--------+-------+--------|
| CX486 | Closed | Closed | Closed | 2 & 3 | Open |
|---------------+---------+--------+--------+-------+--------|
| IBM486 | Closed | Closed | Closed | 2 & 3 | Open |
|---------------+---------+--------+--------+-------+--------|
| TI486 | Open | Open | Open | 1 & 2 | Open |
|---------------+---------+--------+--------+-------+--------|
| 80486SX | Open | Open | Open | 1 & 2 | Closed |
|---------------+---------+--------+--------+-------+--------|
| AM486DX | Open | Open | Open | 1 & 2 | Open |
|---------------+---------+--------+--------+-------+--------|
| 80486DX | Open | Open | Open | 1 & 2 | Closed |
|---------------+---------+--------+--------+-------+--------|
| AM486DX2 | Open | Open | Open | 1 & 2 | Open |
|---------------+---------+--------+--------+-------+--------|
| 80486DX2 | Open | Open | Open | 1 & 2 | Closed |
|---------------+---------+--------+--------+-------+--------|
| 80486DX2 (WB) | Open | Open | Open | 1 & 2 | Closed |
|---------------+---------+--------+--------+-------+--------|
| AM486DX4 | Open | Open | Open | 1 & 2 | Open |
|---------------+---------+--------+--------+-------+--------|
| 80486DX4 | Open | Open | Open | 1 & 2 | Closed |
|---------------+---------+--------+--------+-------+--------|
| 80486DX4 (WB) | Open | Open | Open | 1 & 2 | Closed |
|---------------+---------+--------+--------+-------+--------|
| P24T | Open | Open | Open | 1 & 2 | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON'T) |
|------------------------------------------------------------|
| Type | JP35 | JP36 | JP39 | JP40 | JP41 |
|-------------+--------+--------+------------+-------+-------|
| CX486 | Open | Open | 1 & 2, 4 & | 2 & 3 | 2 & 3 |
| | | | 5 | | |
|-------------+--------+--------+------------+-------+-------|
| IBM486 | Open | Open | 1 & 2, 4 & | 2 & 3 | 2 & 3 |
| | | | 5 | | |
|-------------+--------+--------+------------+-------+-------|
| TI486 | Open | Open | 2 & 3, 5 & | 2 & 3 | 2 & 3 |
| | | | 6 | | |
|-------------+--------+--------+------------+-------+-------|
| 80486SX | Closed | Closed | 1 & 2, 4 & | 2 & 3 | 2 & 3 |
| | | | 5 | | |
|-------------+--------+--------+------------+-------+-------|
| AM486DX | Open | Open | 1 & 2, 4 & | 1 & 2 | 1 & 2 |
| | | | 5 | | |
|-------------+--------+--------+------------+-------+-------|
| 80486DX | Closed | Closed | 1 & 2, 4 & | 2 & 3 | 2 & 3 |
| | | | 5 | | |
|-------------+--------+--------+------------+-------+-------|
| AM486DX2 | Open | Open | 1 & 2, 4 & | 1 & 2 | 1 & 2 |
| | | | 5 | | |
|-------------+--------+--------+------------+-------+-------|
| 80486DX2 | Closed | Closed | 1 & 2, 4 & | 2 & 3 | 2 & 3 |
| | | | 5 | | |
|-------------+--------+--------+------------+-------+-------|
| 80486DX2 | Closed | Closed | 1 & 2, 4 & | 2 & 3 | 2 & 3 |
| (WB) | | | 5 | | |
|-------------+--------+--------+------------+-------+-------|
| AM486DX4 | Open | Open | 1 & 2, 4 & | 1 & 2 | 1 & 2 |
| | | | 5 | | |
|-------------+--------+--------+------------+-------+-------|
| 80486DX4 | Closed | Closed | 1 & 2, 4 & | 2 & 3 | 2 & 3 |
| | | | 5 | | |
|-------------+--------+--------+------------+-------+-------|
| 80486DX4 | Closed | Closed | 1 & 2, 4 & | 2 & 3 | 2 & 3 |
| (WB) | | | 5 | | |
|-------------+--------+--------+------------+-------+-------|
| P24T | Closed | Closed | 1 & 2, 4 & | 2 & 3 | 2 & 3 |
| | | | 5 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON'T) |
|------------------------------------------------------------|
| Type | JP42 | JP43 | JP46 | JP47 | JP48 |
|----------------+---------+-------+--------+-------+--------|
| CX486 | 2 & 3 | Open | 1 & 2 | 2 & 3 | Open |
|----------------+---------+-------+--------+-------+--------|
| IBM486 | 2 & 3 | Open | 1 & 2 | 2 & 3 | Open |
|----------------+---------+-------+--------+-------+--------|
| TI486 | 1 & 2 | Open | 1 & 2 | 1 & 2 | Open |
|----------------+---------+-------+--------+-------+--------|
| 80486SX | 2 & 3 | Open | 1 & 2 | 1 & 2 | Open |
|----------------+---------+-------+--------+-------+--------|
| AM486DX | 2 & 3 | Open | 1 & 2 | 1 & 2 | Closed |
|----------------+---------+-------+--------+-------+--------|
| 80486DX | 2 & 3 | Open | 1 & 2 | 1 & 2 | Open |
|----------------+---------+-------+--------+-------+--------|
| AM486DX2 | 2 & 3 | Open | 1 & 2 | 1 & 2 | Closed |
|----------------+---------+-------+--------+-------+--------|
| 80486DX2 | 2 & 3 | Open | 1 & 2 | 1 & 2 | Open |
|----------------+---------+-------+--------+-------+--------|
| 80486DX2 (WB) | 2 & 3 | Open | 2 & 3 | 1 & 2 | Open |
|----------------+---------+-------+--------+-------+--------|
| AM486DX | 2 & 3 | Open | 1 & 2 | 1 & 2 | Open |
|----------------+---------+-------+--------+-------+--------|
| 80486DX4 | 2 & 3 | Open | 1 & 2 | 1 & 2 | Open |
|----------------+---------+-------+--------+-------+--------|
| 80486DX4 (WB) | 2 & 3 | Open | 2 & 3 | 1 & 2 | Open |
|----------------+---------+-------+--------+-------+--------|
| P24T | 2 & 3 | Open | 2 & 3 | 1 & 2 | Open |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RESET/RESUME SELECTION |
|------------------------------------------------------------|
| Setting | JP37 | JP38 |
|--------------------+-------------------+-------------------|
| Reset button | Pins 1 & 2 closed | Pins 1 & 2 closed |
|--------------------+-------------------+-------------------|
| Suspend/reset | Pins 2 & 3 closed | Pins 2 & 3 closed |
| button | | |
+------------------------------------------------------------+