TEXT View Source
# PEAKTRON COMPUTER, INC.
PA386SX-SMT-16/20/25
PA286-SMT-12/16/20/25
Processor 80286/80386SX
Processor Speed 12/16/20/25MHz
Chip Set Peaktron
Max. Onboard DRAM 16MB
Cache None
BIOS AMI
Dimensions 248mm x 218mm
I/O Options None
NPU Options 80287/80387
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 |
|------------------------------------------------------------|
| Note:Motherboard is supplied with either an 80386SX & |
| 80387SX socket or an 80286 & 80287 socket. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | Monitor type select | J7 | open |
| | monochrome | | |
|---+---------------------------+---------------+------------|
| | Monitor type select color | J7 | closed |
|---+---------------------------+---------------+------------|
| » | NPU mode select | J11 | pins 2 & 3 |
| | synchronous with OSC1 | | closed |
|---+---------------------------+---------------+------------|
| | NPU mode select | J11 | pins 1 & 2 |
| | synchronous with | | closed |
| | oscillator at U49 | | |
|---+---------------------------+---------------+------------|
| | Bus speed select ATCLK/2 | SW1/1 | Off |
|---+---------------------------+---------------+------------|
| | Bus speed select ATCLK/3 | SW1/1 | On |
|---+---------------------------+---------------+------------|
| » | Parity check enabled | SW1/2 | On |
|---+---------------------------+---------------+------------|
| | Parity check disabled | SW1/2 | Off |
|---+---------------------------+---------------+------------|
| » | Shadow ram disabled | SW1/4 | On |
|---+---------------------------+---------------+------------|
| | Shadow ram enabled | SW1/4 | Off |
|------------------------------------------------------------|
| Note:Socket at U49 may not be available on all boards. |
| |
| If 8 bit SIMM/SIPPs are used, SW1/switch 2 must be open, |
| otherwise it must be closed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank | Bank | P - 0 | P - 1 |
| | | | 2 | 3 | | |
|-------+---------+---------+-------+------+--------+--------|
| 512KB | (4) | NONE | NONE | NONE | (2) | NONE |
| | 44256 | | | | 41256 | |
|-------+---------+---------+-------+------+--------+--------|
| 512KB | NONE | NONE | (2) | NONE | NONE | NONE |
| | | | 256K | | | |
| | | | x 9 | | | |
|-------+---------+---------+-------+------+--------+--------|
| 1MB | (4) | (4) | NONE | NONE | (2) | (2) |
| | 44256 | 44256 | | | 41256 | 41256 |
|-------+---------+---------+-------+------+--------+--------|
| 1MB | NONE | NONE | (2) | (2) | NONE | NONE |
| | | | 256K | 256K | | |
| | | | x 9 | x 9 | | |
|-------+---------+---------+-------+------+--------+--------|
| 1.5MB | (4) | (4) | (2) | NONE | NONE | NONE |
| | 44256 | 44256 | 256K | | | |
| | | | x 9 | | | |
|-------+---------+---------+-------+------+--------+--------|
| 2MB | (4) | NONE | NONE | NONE | (2) | NONE |
| | 441000 | | | | 411000 | |
|-------+---------+---------+-------+------+--------+--------|
| 2MB | NONE | NONE | (2) | NONE | NONE | NONE |
| | | | 1M x | | | |
| | | | 9 | | | |
|-------+---------+---------+-------+------+--------+--------|
| 3MB | (4) | (4) | (2) | NONE | NONE | NONE |
| | 44256 | 44256 | 1M x | | | |
| | | | 9 | | | |
|-------+---------+---------+-------+------+--------+--------|
| 4MB | (4) | (4) | NONE | NONE | (2) | (2) |
| | 441000 | 441000 | | | 411000 | 411000 |
|-------+---------+---------+-------+------+--------+--------|
| 4MB | NONE | NONE | (2) | (2) | NONE | NONE |
| | | | 1M x | 1M x | | |
| | | | 9 | 9 | | |
|-------+---------+---------+-------+------+--------+--------|
| 5MB | (4) | (4) | (2) | (2) | NONE | NONE |
| | 44256 | 44256 | 1M x | 1M x | | |
| | | | 9 | 9 | | |
|-------+---------+---------+-------+------+--------+--------|
| 6MB | (4) | (4) | (2) | NONE | NONE | NONE |
| | 441000 | 441000 | 1M x | | | |
| | | | 9 | | | |
|-------+---------+---------+-------+------+--------+--------|
| 8MB | NONE | NONE | (2) | NONE | NONE | NONE |
| | | | 4M x | | | |
| | | | 9 | | | |
|-------+---------+---------+-------+------+--------+--------|
| 16MB | NONE | NONE | (2) | (2) | NONE | NONE |
| | | | 4M x | 4M x | | |
| | | | 9 | 9 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER/SWITCH CONFIGURATION |
|------------------------------------------------------------|
| Size | J8 | J9 | SW1/5 | SW1/6 | SW1/7 | SW1/8 |
|--------+--------+--------+--------+--------+-------+-------|
| 512KB | 2 & 3 | 1 & 2 | Off | On | Off | Off |
|--------+--------+--------+--------+--------+-------+-------|
| 512KB | 1 & 2 | 2 & 3 | Off | On | Off | Off |
|--------+--------+--------+--------+--------+-------+-------|
| 1MB | 2 & 3 | 1 & 2 | Off | On | Off | On |
|--------+--------+--------+--------+--------+-------+-------|
| 1MB | 1 & 2 | 2 & 3 | Off | On | Off | On |
|--------+--------+--------+--------+--------+-------+-------|
| 1.5MB | 2 & 3 | 1 & 2 | Off | Off | On | Off |
|--------+--------+--------+--------+--------+-------+-------|
| 2MB | 2 & 3 | 1 & 2 | On | Off | Off | Off |
|--------+--------+--------+--------+--------+-------+-------|
| 2MB | 1 & 2 | 2 & 3 | On | Off | Off | Off |
|--------+--------+--------+--------+--------+-------+-------|
| 3MB | 2 & 3 | 1 & 2 | Off | On | On | On |
|--------+--------+--------+--------+--------+-------+-------|
| 4MB | 2 & 3 | 1 & 2 | On | Off | Off | On |
|--------+--------+--------+--------+--------+-------+-------|
| 4MB | 1 & 2 | 2 & 3 | On | Off | Off | On |
|--------+--------+--------+--------+--------+-------+-------|
| 5MB | 2 & 3 | 1 & 2 | Off | On | On | On |
|--------+--------+--------+--------+--------+-------+-------|
| 6MB | 2 & 3 | 1 & 2 | On | Off | On | Off |
|--------+--------+--------+--------+--------+-------+-------|
| 8MB | 1 & 2 | 2 & 3 | On | On | Off | Off |
|--------+--------+--------+--------+--------+-------+-------|
| 16MB | 1 & 2 | 2 & 3 | On | On | Off | On |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS CONFIGURATION |
|------------------------------------------------------------|
| Size | J10 | J12 |
|-------------------+--------------------+-------------------|
| 27256 | pins 1 & 2 closed | Open |
|-------------------+--------------------+-------------------|
| 27512 | pins 2 & 3 closed | Closed |
+------------------------------------------------------------+