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# AMPTRON INTERNATIONAL, INC.
DX-6400
Processor 80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed 16/20/25/33/50(internal)/50/66(internal)MHz
Chip Set C & T
Max. Onboard DRAM 32MB
Cache 64/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options None
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | J3 | Reset switch | J6 |
|------------------+----------+-------------------+----------|
| Turbo switch | J4 | Power LED & | J7 |
| | | keylock | |
|------------------+----------+-------------------+----------|
| Turbo LED | J5 | Speaker | J8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+--------+--------------|
| » | CMOS memory normal operation | JP1 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | CMOS memory clear | JP1 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | Monitor type select color | JP2 | Closed |
|---+--------------------------------+--------+--------------|
| | Monitor type select monochrome | JP2 | Open |
|---+--------------------------------+--------+--------------|
| » | I/O bus speed select CPUCLK/4 | JP3 | Open |
|---+--------------------------------+--------+--------------|
| | I/O bus speed select CPUCLK/6 | JP3 | 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 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 20MB | (4) 4M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG (U27) | TAG (U28) |
|-------+-------------+------------+------------+------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | NONE |
|-------+-------------+------------+------------+------------|
| 256KB | (4) 32K x 8 | (4) 32K x | (1) 8K x 8 | (1) 8K x 8 |
| | | 8 | | |
|-------+-------------+------------+------------+------------|
| 256KB | (4) 32K x 8 | (4) 32K x | (1) 32K x | NONE |
| | | 8 | 8 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP7 | JP8 | JP9 | JP10 | JP11 |
|----------+----------+----------+--------+---------+--------|
| 64KB | Open | Open | Open | Open | 2 & 3 |
|----------+----------+----------+--------+---------+--------|
| 256KB | 1 & 2 | 1 & 2 | Open | 1 & 2 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | Socket | JP4 | JP5 | JP6 |
|----------+--------+------------------+--------+------------|
| 80486SX | CPU | pins 2 & 3 | Open | open |
| | | closed | | |
|----------+--------+------------------+--------+------------|
| ODP486SX | CPU-X | pins 1 & 2 | Closed | pins 1 & 2 |
| | | closed | | closed |
|----------+--------+------------------+--------+------------|
| 80487SX | CPU-X | pins 1 & 2 | Closed | pins 1 & 2 |
| | | closed | | closed |
|----------+--------+------------------+--------+------------|
| 80486DX | CPU | pins 1 & 2 | Closed | pins 2 & 3 |
| | | closed | | closed |
|----------+--------+------------------+--------+------------|
| 80486DX2 | CPU | pins 1 & 2 | Closed | pins 2 & 3 |
| | | closed | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU CLOCK FREQUENCY CONFIGURATION |
|------------------------------------------------------------|
| Type |CPU Frequency|Osc Frequency| JP12 |
|-----------------------+-------------+-------------+--------|
|80486SX/80487SX/80486DX| 20/25/33MHz | 40/50/66MHz |pins 2 &|
| | | |3 closed|
|-----------------------+-------------+-------------+--------|
| 80486DX2/ODP486SX | 50/66MHz | 25/33MHz |pins 1 &|
| | | |2 closed|
|-----------------------+-------------+-------------+--------|
| 80486DX2/ODP486SX | 50/66MHz | 50/66MHz |pins 2 &|
| | | |3 closed|
|-----------------------+-------------+-------------+--------|
| 80486DX | 50MHz | 50MHz |pins 1 &|
| | | |2 closed|
+------------------------------------------------------------+