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# AMPTRON INTERNATIONAL, INC.
DX-6900 VER. 1.9
Processor AM486SX/80486SX/CX486DX/AM486DX/80486DX/SL80486DX/CX486DX2/
AM486DX2/80486DX2/SL80486DX2/AM486DX4/80486DX4
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set Unidentified
Max. 64MB
Onboard
DRAM
Cache 64/128/256/512/1024KB
BIOS AMI
Dimensions 254mm x 218mm
I/O 32-bit VESA local bus slots (3), green PC connector
Options
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | JP1 | Reset switch | JP20 |
|------------------+----------+-------------------+----------|
| Power LED & | JP15 | Turbo switch | JP22 |
| keylock | | | |
|------------------+----------+-------------------+----------|
| Speaker | JP18 | Green PC | JP23 |
| | | connector | |
|------------------+----------+-------------------+----------|
| Turbo LED | JP19 | 32-bit VESA local | SL1 - |
| | | bus slots | SL3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Battery type select internal | JP1 | Closed |
|---+----------------------------------+--------+------------|
| | Battery type select external | JP1 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP1 | pins 3 & 4 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP2 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP3 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP31 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP36 | Closed |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 1MB | (4) 256K x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 1MB | NONE | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 2MB | (4) 256K x 9 | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 2MB | NONE | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 2MB | NONE | (1) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 3MB | (4) 256K x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 3MB | NONE | (1) 256K x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 3MB | NONE | (1) 512K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | (4) 1M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 4MB | NONE | (1) 512K x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | NONE | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 5MB | (4) 256K x 9 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 5MB | (4) 1M x 9 | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 5MB | NONE | (1) 256K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 5MB | NONE | (1) 1M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 6MB | (4) 256K x 9 | (1) 256K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 6MB | (4) 1M x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 6MB | NONE | (1) 512K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 6MB | NONE | (1) 1M x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 8MB | (4) 1M x 9 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 8MB | NONE | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 8MB | NONE | (1) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 9MB | (4) 1M x 9 | (1) 256K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 9MB | (4) 1M x 9 | (1) 1M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 9MB | NONE | (1) 256K x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 9MB | NONE | (1) 2M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 10MB | NONE | (1) 512K x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 10MB | NONE | (1) 2M x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 12MB | (4) 1M x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 12MB | NONE | (1) 1M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 12MB | NONE | (1) 2M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 16MB | (4) 4M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 16MB | NONE | (1) 2M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 16MB | NONE | (1) 4M x 36 | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 17MB | (4) 256K x 9 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 17MB | (4) 4M x 9 | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 17MB | NONE | (1) 256K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 17MB | NONE | (1) 4M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 18MB | (4) 256K x 9 | (1) 256K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 18MB | (4) 256K x 9 | (1) 1M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 18MB | (4) 256K x 9 | (1) 4M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 18MB | NONE | (1) 512K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 18MB | NONE | (1) 4M x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (4) 1M x 9 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 20MB | (4) 4M x 9 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 20MB | NONE | (1) 1M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 20MB | NONE | (1) 4M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 21MB | (4) 256K x 9 | (1) 1M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 21MB | (4) 256K x 9 | (1) 4M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 21MB | (4) 1M x 9 | (1) 256K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 21MB | (4) 1M x 9 | (1) 4M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 24MB | (4) 1M x 9 | (1) 1M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 24MB | (4) 1M x 9 | (1) 4M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 24MB | NONE | (1) 2M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 24MB | NONE | (1) 4M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | (4) 4M x 9 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 32MB | NONE | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | NONE | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 33MB | (4) 256K x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 33MB | NONE | (1) 256K x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 33MB | NONE | (1) 8M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 34MB | NONE | (1) 512K x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 34MB | NONE | (1) 8M x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 36MB | (4) 1M x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 36MB | NONE | (1) 1M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 36MB | NONE | (1) 8M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 40MB | NONE | (1) 2M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 40MB | NONE | (1) 8M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | NONE | (1) 4M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | NONE | (1) 8M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | (4) 16M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 64MB | NONE | (1) 16M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 64MB | NONE | NONE | (1) 16M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | NONE | (1) 8M x 36 | (1) 8M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 64K x 8 | NONE | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 64K x 8 | (4) 64K x 8 | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 128K x 8 | NONE | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 1MB | (4) 128K x 8 | (4) 128K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP5 | JP10 |
|-------+--------------------------------+-------------------|
| 64KB | pins 2 & 3 closed | pins 2 & 3 closed |
|-------+--------------------------------+-------------------|
| 128KB | pins 1 & 2 closed | pins 1 & 2 closed |
|-------+--------------------------------+-------------------|
| 256KB | pins 2 & 3 closed | pins 2 & 3 closed |
|-------+--------------------------------+-------------------|
| 256KB | pins 1 & 2, 3 & 4 closed | pins 1 & 2 closed |
|-------+--------------------------------+-------------------|
| 512KB | pins 2 & 3, 4 & 5 closed | pins 2 & 3 closed |
|-------+--------------------------------+-------------------|
| 512KB | pins 1 & 2, 3 & 4, 5 & 6 | pins 1 & 2 closed |
| | closed | |
|-------+--------------------------------+-------------------|
| 1MB | pins 2 & 3, 4 & 5, 6 & 7 | pins 2 & 3 closed |
| | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | JP11 | JP12 | JP13 | JP14 |
|-----------+------------+-----------+-----------+-----------|
| 64KB | Open | Open | Open | Open |
|-----------+------------+-----------+-----------+-----------|
| 128KB | Open | Open | Open | Closed |
|-----------+------------+-----------+-----------+-----------|
| 256KB | Open | Open | Closed | Closed |
|-----------+------------+-----------+-----------+-----------|
| 256KB | Open | Open | Closed | Closed |
|-----------+------------+-----------+-----------+-----------|
| 512KB | Open | Closed | Closed | Closed |
|-----------+------------+-----------+-----------+-----------|
| 512KB | Open | Closed | Closed | Closed |
|-----------+------------+-----------+-----------+-----------|
| 1MB | Closed | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP27 | JP28 | JP29 | JP30 |
|--------------+----------+------------+----------+----------|
| AM486SX | Open | 2 & 3 | Open | Open |
|--------------+----------+------------+----------+----------|
| 80486SX | Open | 2 & 3 | Open | Open |
|--------------+----------+------------+----------+----------|
| CX486DX | 2 & 3 | 1 & 2, 3 & | 1 & 2, 3 | 2 & 3, 4 |
| | | 4, 5 & 6 | & 4, 5 & | & 5 |
| | | | 6 | |
|--------------+----------+------------+----------+----------|
| AM486DX | Open | 2 & 3 | Open | Open |
|--------------+----------+------------+----------+----------|
| 80486DX | Open | 2 & 3 | Open | Open |
|--------------+----------+------------+----------+----------|
| SL80486DX | 1 & 2, 3 | 1 & 2 | 1 & 2 | 5 & 6 |
| | & 4 | | | |
|--------------+----------+------------+----------+----------|
| CX486DX2 | 2 & 3 | 1 & 2, 3 & | 1 & 2, 3 | 2 & 3, 4 |
| | | 4, 5 & 6 | & 4, 5 & | & 5 |
| | | | 6 | |
|--------------+----------+------------+----------+----------|
| CX486DX2V-80 | 2 & 3 | 1 & 2, 3 & | 1 & 2, 3 | 2 & 3, 4 |
| | | 4, 5 & 6 | & 4, 5 & | & 5 |
| | | | 6 | |
|--------------+----------+------------+----------+----------|
| AM486DX2 | Open | 2 & 3 | Open | Open |
|--------------+----------+------------+----------+----------|
| 80486DX2 | Open | 2 & 3 | Open | Open |
|--------------+----------+------------+----------+----------|
| SL80486DX2 | 1 & 2, 3 | 1 & 2 | 1 & 2 | 5 & 6 |
| | & 4 | | | |
|--------------+----------+------------+----------+----------|
| AM486DX4 | Open | 2 & 3 | Open | Open |
|--------------+----------+------------+----------+----------|
| 80486DX4 | 1 & 2, 3 | 1 & 2 | 1 & 2 | 5 & 6 |
| | & 4 | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP32 | JP33 | JP34 | JP35 |
|---------------+---------+--------------+---------+---------|
| AM486SX | Open | 2 & 3 | Closed | Closed |
|---------------+---------+--------------+---------+---------|
| 80486SX | Open | 2 & 3 | Closed | Closed |
|---------------+---------+--------------+---------+---------|
| CX486DX | 1 & 2 | 1 & 2, 3 & 4 | Open | Closed |
|---------------+---------+--------------+---------+---------|
| AM486DX | 1 & 2 | 1 & 2, 3 & 4 | Closed | Closed |
|---------------+---------+--------------+---------+---------|
| 80486DX | 1 & 2 | 1 & 2, 3 & 4 | Closed | Closed |
|---------------+---------+--------------+---------+---------|
| SL80486DX | 1 & 2 | 1 & 2, 3 & 4 | Open | Closed |
|---------------+---------+--------------+---------+---------|
| CX486DX2 | 1 & 2 | 1 & 2, 3 & 4 | Open | Closed |
|---------------+---------+--------------+---------+---------|
| CX486DX2V-80 | 1 & 2 | 1 & 2, 3 & 4 | Open | Open |
|---------------+---------+--------------+---------+---------|
| AM486DX2 | 1 & 2 | 1 & 2, 3 & 4 | Closed | Closed |
|---------------+---------+--------------+---------+---------|
| 80486DX2 | 1 & 2 | 1 & 2, 3 & 4 | Closed | Closed |
|---------------+---------+--------------+---------+---------|
| SL80486DX2 | 1 & 2 | 1 & 2, 3 & 4 | Open | Closed |
|---------------+---------+--------------+---------+---------|
| AM486DX4 | 1 & 2 | 1 & 2, 3 & 4 | Open | Closed |
|---------------+---------+--------------+---------+---------|
| 80486DX4 | 1 & 2 | 1 & 2, 3 & 4 | Open | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP6 | JP7 | JP8 |
|---------------+--------------+--------------+--------------|
| 25MHz | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 33MHz | Closed | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 40MHz | Open | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 50iMHz | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 50MHz | Closed | Open | Open |
|---------------+--------------+--------------+--------------|
| 66iMHz | Closed | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 75iMHz | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 100iMHz | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP24 | JP25 | JP26 |
|---------+----------------+----------------+----------------|
| 3.3v | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 4v | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 5v | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE CONFIGURATION |
|------------------------------------------------------------|
| Wait states | JP16 |
|-------------------------------+----------------------------|
| 0 wait states | Open |
|-------------------------------+----------------------------|
| 1 wait state | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | JP17 |
|-------------------------------+----------------------------|
| <= 33MHz | Open |
|-------------------------------+----------------------------|
| > 33MHz | Closed |
|------------------------------------------------------------|
| Note: The location of JP17 is unidentified. |
+------------------------------------------------------------+