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# COMPUTREND SYSTEMS, INC.
PREMIO PCI 486AL3
Processor 80486SX/SL80486SX/AM486DX/80486DX/SL80486DX/TICXDX2/CX486DX2/
AM486DX2/(SL)AM486DX2/80486DX2/SL80486DX2/AM486DX4/80486DX4/ P24D/P24T
Processor 25/33/40/50(internal)/66(internal)/75(internal)/80(internal)/100(internal)/
Speed 120(internal)/133(internal)/160(internal)MHz
Chip Set ALI
Max. 64MB
Onboard
DRAM
Cache 128/256KB
BIOS AMI
Dimensions 220mm x 220mm
I/O 32-bit PCI slots (3), floppy drive interface, green PC connector, IDE
Options interfaces (2), parallel port, serial ports (2)
NPU None
Options
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+---------------+------------|
| Serial port 1 | CN1 | Power LED & | JFP pins 1 |
| | | keylock | - 5 |
|--------------------+----------+---------------+------------|
| Serial port 2 | CN2 | Speaker | JFP pins 7 |
| | | | - 10 |
|--------------------+----------+---------------+------------|
| Floppy drive | CN3 | Turbo LED | JFP pins |
| interface | | | 12 & 13 |
|--------------------+----------+---------------+------------|
| Parallel port | CN4 | Turbo switch | JFP pins |
| | | | 15 - 17 |
|--------------------+----------+---------------+------------|
| IDE interface 2 | CN5 | Reset switch | JFP pins |
| | | | 19 & 20 |
|--------------------+----------+---------------+------------|
| IDE interface 1 | CN6 | IDE interface | JFPA |
| | | LED | |
|--------------------+----------+---------------+------------|
| Chassis fan power | FAN | Green PC | JG1 |
| | | connector | |
|--------------------+----------+---------------+------------|
| External battery | JBAT | 32-bit PCI | PC1 - PC3 |
| | | slots | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|-------------------------------------+---------+------------|
| » | Parallel port IRQ select 378H | JIRQ | Pins 1 & 2 |
| | or 3BCH | | closed |
|---+---------------------------------+---------+------------|
| | Parallel port IRQ select 278H | JIRQ | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+---------+------------|
| » | Factory configured - do not | JS3 | N/A |
| | alter | | |
|------------------------------------------------------------|
| Note: JIRQ may not be present on all boards. The location |
| is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 4MB | (1) 1M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 8MB | (1) 2M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 12MB | (1) 1M x 36 | (1) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 16MB | (1) 4M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 16MB | (1) 1M x 36 | (1) 2M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 24MB | (1) 4M x 36 | (1) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 32MB | (1) 8M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 36MB | (1) 1M x 36 | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 40MB | (1) 2M x 36 | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 40MB | (1) 4M x 36 | (1) 2M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 40MB | (1) 1M x 36 | (1) 8M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 36 | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 64MB | (1) 8M x 36 | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 64MB | (1) 4M x 36 | (1) 8M x 36 | (1) 4M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|-----------+-------------+-------------+--------------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K/16K/32K x 8 |
|-----------+-------------+-------------+--------------------|
| 256KB (A) | (4) 32K x 8 | (4) 32K x 8 | (1) 8K/16K/32K x 8 |
|-----------+-------------+-------------+--------------------|
| 256KB (B) | (4) 64K x 8 | NONE | (1) 8K/16K/32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JS1 | JS2 | JS4 |
|-----------+----------------+---------------+---------------|
| 128KB | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
|-----------+----------------+---------------+---------------|
| 256KB (A) | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|-----------+----------------+---------------+---------------|
| 256KB (B) | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JC1 | JC2 | JC3 | JC4 | JC5 |
|-----------------+----------+--------+------+-------+-------|
| 80486SX | Open | Open | Open | 1 & 2 | 2 & 3 |
|-----------------+----------+--------+------+-------+-------|
| SL80486SX | Open | Open | Open | 1 & 2 | 2 & 3 |
|-----------------+----------+--------+------+-------+-------|
| AM486DX | Open | Open | Open | 2 & 3 | 1 & 2 |
|-----------------+----------+--------+------+-------+-------|
| 80486DX | Open | Open | Open | 2 & 3 | 1 & 2 |
|-----------------+----------+--------+------+-------+-------|
| SL80486DX | Open | Open | Open | 2 & 3 | 1 & 2 |
|-----------------+----------+--------+------+-------+-------|
| ticxdx2 | Open | Closed | Open | 2 & 3 | 1 & 2 |
|-----------------+----------+--------+------+-------+-------|
| CX486DX2 | Open | Closed | Open | 2 & 3 | 1 & 2 |
|-----------------+----------+--------+------+-------+-------|
| AM486DX2 | Open | Open | Open | 2 & 3 | 1 & 2 |
|-----------------+----------+--------+------+-------+-------|
| (SL)AM486DX2 | Open | Open | Open | 2 & 3 | 1 & 2 |
|-----------------+----------+--------+------+-------+-------|
| (SL)AM486DX2 | 1 & 2, 3 | Open | Open | 2 & 3 | 1 & 2 |
| (WB) | & 4 | | | | |
|-----------------+----------+--------+------+-------+-------|
| 80486DX2 | Open | Open | Open | 2 & 3 | 1 & 2 |
|-----------------+----------+--------+------+-------+-------|
| SL80486DX2 | Open | Open | Open | 2 & 3 | 1 & 2 |
|-----------------+----------+--------+------+-------+-------|
| AM486DX4 | Open | Open | Open | 2 & 3 | 1 & 2 |
|-----------------+----------+--------+------+-------+-------|
| AM486DX4 (WB) | 1 & 2, 3 | Open | Open | 2 & 3 | 1 & 2 |
| | & 4 | | | | |
|-----------------+----------+--------+------+-------+-------|
| 80486DX4 | Open | Open | Open | 2 & 3 | 1 & 2 |
|-----------------+----------+--------+------+-------+-------|
| P24D | 1 & 2, 3 | Open | Open | 2 & 3 | 1 & 2 |
| | & 4 | | | | |
|-----------------+----------+--------+------+-------+-------|
| P24T | 1 & 2, 3 | Open | Open | 2 & 3 | 1 & 2 |
| | & 4 | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | RN1 | RN2 | RN3 |
|---------------+------------------+------------+------------|
| 80486SX | pins 1 - 10 | Not | Not |
| | installed | installed | installed |
|---------------+------------------+------------+------------|
| SL80486SX | pins 3 - 12 | Not | Not |
| | installed | installed | installed |
|---------------+------------------+------------+------------|
| AM486DX | pins 1 - 10 | Not | Not |
| | installed | installed | installed |
|---------------+------------------+------------+------------|
| 80486DX | pins 1 - 10 | Not | Not |
| | installed | installed | installed |
|---------------+------------------+------------+------------|
| SL80486DX | pins 3 - 12 | Not | Not |
| | installed | installed | installed |
|---------------+------------------+------------+------------|
| ticxdx2 | Not installed | Installed | Not |
| | | | installed |
|---------------+------------------+------------+------------|
| CX486DX2 | Not installed | Installed | Not |
| | | | installed |
|---------------+------------------+------------+------------|
| AM486DX2 | pins 1 - 10 | Not | Not |
| | installed | installed | installed |
|---------------+------------------+------------+------------|
| (SL)AM486DX2 | pins 1 - 10 | Not | Not |
| | installed | installed | installed |
|---------------+------------------+------------+------------|
| (SL)AM486DX2 | pins 5 - 14 | Not | Not |
| (WB) | installed | installed | installed |
|---------------+------------------+------------+------------|
| 80486DX2 | pins 1 - 10 | Not | Not |
| | installed | installed | installed |
|---------------+------------------+------------+------------|
| SL80486DX2 | pins 3 - 12 | Not | Not |
| | installed | installed | installed |
|---------------+------------------+------------+------------|
| AM486DX4 | pins 1 - 10 | Not | Not |
| | installed | installed | installed |
|---------------+------------------+------------+------------|
| AM486DX4 (WB) | pins 5 - 14 | Not | Not |
| | installed | installed | installed |
|---------------+------------------+------------+------------|
| 80486DX4 | pins 3 - 12 | Not | Not |
| | installed | installed | installed |
|---------------+------------------+------------+------------|
| P24D | pins 5 - 14 | Not | Not |
| | installed | installed | installed |
|---------------+------------------+------------+------------|
| P24T | pins 5 - 14 | Not | Not |
| | installed | installed | installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JK1 | JK2 |
|---------+-------------------------+------------------------|
| 25MHz | Open | Pins 1 & 2 closed |
|---------+-------------------------+------------------------|
| 33MHz | Pins 1 & 2, 3 & 4 | Pins 1 & 2 closed |
| | closed | |
|---------+-------------------------+------------------------|
| 40MHz | Pins 1 & 2 closed | Pins 2 & 3, 4 & 5 |
| | | closed |
|---------+-------------------------+------------------------|
| 50iMHz | Open | Pins 1 & 2 closed |
|---------+-------------------------+------------------------|
| 66iMHz | Pins 1 & 2, 3 & 4 | Pins 1 & 2 closed |
| | closed | |
|---------+-------------------------+------------------------|
| 75iMHz | Open | Pins 1 & 2 closed |
|---------+-------------------------+------------------------|
| 80iMHz | Pins 1 & 2 closed | Pins 2 & 3, 4 & 5 |
| | | closed |
|---------+-------------------------+------------------------|
| 100iMHz | Pins 1 & 2, 3 & 4 | Pins 1 & 2 closed |
| | closed | |
|---------+-------------------------+------------------------|
| 120iMHz | Pins 1 & 2 closed | Pins 2 & 3, 4 & 5 |
| | | closed |
|---------+-------------------------+------------------------|
| 133iMHz | Pins 1 & 2, 3 & 4 | Pins 1 & 2 closed |
| | closed | |
|---------+-------------------------+------------------------|
| 160iMHz | Pins 1 & 2 closed | Pins 2 & 3, 4 & 5 |
| | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP1 | JV1 |
|-------------+------------+---------------------------------|
| » | 3v | Open | Open |
|----+--------+------------+---------------------------------|
| | 4v | Closed | Open |
|----+--------+------------+---------------------------------|
| | 5v | Open | Pins 1 & 2, 3 & 4, 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CONFIGURATION |
|------------------------------------------------------------|
| DMA | JP3 | JP4 |
|------------------+--------------------+--------------------|
| DMA 1 | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| DMA 3 | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+