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# PEAKTRON COMPUTER, INC.
PA 286-16/20/25 & PA 386SX-16/20
Processor 80286/80386SX
Processor Speed 16/20/25MHz
Chip Set Peaktron
Max. Onboard DRAM 16MB
Cache None
BIOS AMI
Dimensions 330mm x 220mm
I/O Options None
NPU Options 80287/80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+----------+---------------------+----------|
| Reset switch | J1 | Speaker | J4 |
|----------------+----------+---------------------+----------|
| Turbo switch | J2 | Power LED & keylock | J5 |
|----------------+----------+---------------------+----------|
| Turbo LED | J3 | External battery | JP1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|--------------------------------+---------------+-----------|
| » | CPU speed select | J6 | open |
| | switchable at turbo switch | | |
|---+----------------------------+---------------+-----------|
| | CPU speed select | J6 | 1 & 2 or |
| | switchable at keyboard | | 2 & 3 |
|---+----------------------------+---------------+-----------|
| » | Monitor type select | J7 | open |
| | monochrome | | |
|---+----------------------------+---------------+-----------|
| | Monitor type select color | J7 | closed |
|---+----------------------------+---------------+-----------|
| » | NPU mode select | J11 | pins 2 & |
| | synchronous with CPU | | 3 closed |
|---+----------------------------+---------------+-----------|
| | NPU mode select | J11 | pins 1 & |
| | asynchronous with CPU | | 2 closed |
|---+----------------------------+---------------+-----------|
| » | Bus speed select ATCLK/2 | SW1/1 | Open |
|---+----------------------------+---------------+-----------|
| | Bus speed select ATCLK/3 | SW1/1 | Closed |
|---+----------------------------+---------------+-----------|
| » | Parity check enabled | SW1/2 | Closed |
|---+----------------------------+---------------+-----------|
| | Parity check disabled | SW1/2 | Open |
|---+----------------------------+---------------+-----------|
| » | DRAM select 0 wait states | SW1/3 | Closed |
|---+----------------------------+---------------+-----------|
| | DRAM select 1 wait state | SW1/3 | Open |
|---+----------------------------+---------------+-----------|
| » | Shadow BIOS ROM disabled | SW1/4 | Closed |
|---+----------------------------+---------------+-----------|
| | Shadow BIOS ROM enabled | SW1/4 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | P-0 | Bank 1 | P-1 | Bank | Bank |
| | | | | | 2 | 3 |
|-------+---------+---------+---------+--------+------+------|
| 512KB | (4) | (2) | NONE | NONE | NONE | NONE |
| | 44256 | 41256 | | | | |
|-------+---------+---------+---------+--------+------+------|
| 512KB | NONE | NONE | NONE | NONE | (2) | NONE |
| | | | | | 256K | |
| | | | | | x 9 | |
|-------+---------+---------+---------+--------+------+------|
| 1MB | (4) | (2) | (4) | (2) | NONE | NONE |
| | 44256 | 41256 | 44256 | 41256 | | |
|-------+---------+---------+---------+--------+------+------|
| 1MB | NONE | NONE | NONE | NONE | (2) | (2) |
| | | | | | 256K | 256K |
| | | | | | x 9 | x 9 |
|-------+---------+---------+---------+--------+------+------|
| 1.5MB | (4) | (2) | (4) | (2) | (2) | NONE |
| | 44256 | 41256 | 44256 | 41256 | 256K | |
| | | | | | x 9 | |
|-------+---------+---------+---------+--------+------+------|
| 2MB | (4) | (2) | NONE | NONE | NONE | NONE |
| | 441000 | 411000 | | | | |
|-------+---------+---------+---------+--------+------+------|
| 2MB | NONE | NONE | NONE | NONE | (2) | NONE |
| | | | | | 1M x | |
| | | | | | 9 | |
|-------+---------+---------+---------+--------+------+------|
| 3MB | (4) | (2) | (4) | (2) | (2) | NONE |
| | 44256 | 41256 | 44256 | 41256 | 1M x | |
| | | | | | 9 | |
|-------+---------+---------+---------+--------+------+------|
| 4MB | (4) | (2) | (4) | (2) | NONE | NONE |
| | 441000 | 411000 | 441000 | 411000 | | |
|-------+---------+---------+---------+--------+------+------|
| 4MB | NONE | NONE | NONE | NONE | (2) | (2) |
| | | | | | 1M x | 1M x |
| | | | | | 9 | 9 |
|-------+---------+---------+---------+--------+------+------|
| 6MB | (4) | (2) | (4) | (2) | (2) | NONE |
| | 441000 | 411000 | 441000 | 411000 | 1M x | |
| | | | | | 9 | |
|-------+---------+---------+---------+--------+------+------|
| 8MB | NONE | NONE | NONE | NONE | (2) | NONE |
| | | | | | 4M x | |
| | | | | | 9 | |
|-------+---------+---------+---------+--------+------+------|
| 16MB | NONE | NONE | NONE | NONE | (2) | (2) |
| | | | | | 4M x | 4M x |
| | | | | | 9 | 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
|Size |SW1/5 |SW1/6 |SW1/7 |SW1/8 | J8 | J9 |
|-----+------+------+------+------+---------------+----------|
|512KB| Open |Closed| Open | Open | pins 2 & 3 |pins 1 & 2|
| | | | | | closed | closed |
|-----+------+------+------+------+---------------+----------|
|512KB| Open |Closed| Open | Open | pins 1 & 2 |pins 2 & 3|
| | | | | | closed | closed |
|-----+------+------+------+------+---------------+----------|
| 1MB | Open |Closed| Open |Closed| pins 2 & 3 |pins 1 & 2|
| | | | | | closed | closed |
|-----+------+------+------+------+---------------+----------|
| 1MB | Open |Closed| Open |Closed| pins 1 & 2 |pins 2 & 3|
| | | | | | closed | closed |
|-----+------+------+------+------+---------------+----------|
|1.5MB| Open | Open |Closed| Open | pins 2 & 3 |pins 1 & 2|
| | | | | | closed | closed |
|-----+------+------+------+------+---------------+----------|
| 2MB |Closed| Open | Open | Open | pins 2 & 3 |pins 1 & 2|
| | | | | | closed | closed |
|-----+------+------+------+------+---------------+----------|
| 2MB |Closed| Open | Open | Open | pins 1 & 2 |pins 2 & 3|
| | | | | | closed | closed |
|-----+------+------+------+------+---------------+----------|
| 3MB | Open |Closed|Closed| Open | pins 2 & 3 |pins 1 & 2|
| | | | | | closed | closed |
|-----+------+------+------+------+---------------+----------|
| 4MB |Closed| Open | Open |Closed| pins 2 & 3 |pins 1 & 2|
| | | | | | closed | closed |
|-----+------+------+------+------+---------------+----------|
| 4MB |Closed| Open | Open |Closed| pins 1 & 2 |pins 2 & 3|
| | | | | | closed | closed |
|-----+------+------+------+------+---------------+----------|
| 6MB |Closed| Open |Closed| Open | pins 2 & 3 |pins 1 & 2|
| | | | | | closed | closed |
|-----+------+------+------+------+---------------+----------|
| 8MB |Closed|Closed| Open | Open | pins 2 & 3 |pins 1 & 2|
| | | | | | closed | closed |
|-----+------+------+------+------+---------------+----------|
|16MB |Closed|Closed| Open |Closed| pins 1 & 2 |pins 2 & 3|
| | | | | | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS CONFIGURATION |
|------------------------------------------------------------|
| Type | J10 | J12 |
|------------------+--------------------+--------------------|
| 27256 | pins 1 & 2 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 27512 | Open | Closed |
+------------------------------------------------------------+