TEXT View Source
# PINE TECHNOLOGY
PT-428
Processor 80486SX/80486DX/80486DX2
Processor Speed 25/33/40/50(internal)/50/66(internal)MHz
Chip Set UMC
Max. Onboard DRAM 32MB
Cache 32/64/128/256KB
BIOS AMI
Dimensions 250mm x 220mm
I/O Options 32-bit VESA local bus slots (3)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | J1 | Speaker | J5 |
|------------------+----------+-------------------+----------|
| Reset switch | J2 | Power LED & | J6 |
| | | keylock | |
|------------------+----------+-------------------+----------|
| Turbo switch | J3 | 32-bit VESA Local | SL1,SL2 |
| | | bus slots | & SL3 |
|------------------+----------+-------------------+----------|
| Turbo LED | J4 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Battery type select - internal | JP1 | Closed |
|---+----------------------------------+--------+------------|
| | Battery type select - internal | JP1 | Open |
|---+----------------------------------+--------+------------|
| » | Power good signal detect from | JP2 | pins 1 & 2 |
| | power supply | | closed |
|---+----------------------------------+--------+------------|
| | Power good signal detect from | JP2 | pins 2 & 3 |
| | board | | closed |
|---+----------------------------------+--------+------------|
| » | VGA card select - normal | JP3 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | VGA card select - POWER 9000 | JP3 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | CPU test logic enabled | JP6 | Open |
|---+----------------------------------+--------+------------|
| | CPU test logic disabled | JP6 | Closed |
|---+----------------------------------+--------+------------|
| » | (MCA1) LDEV# direct connect to | JP7 | pins 1 & 2 |
| | 491 ELBA# | | closed |
|---+----------------------------------+--------+------------|
| | LDEV# through and gate to 491 | JP7 | pins 2 & 3 |
| | ELBA# | | closed |
|---+----------------------------------+--------+------------|
| » | CPU speed select < 33MHz | JP11 | Open |
|---+----------------------------------+--------+------------|
| | CPU speed select > 33MHz | JP11 | 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) 1M x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 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 |
|------------+---------------+---------------+---------------|
| 32KB | (4) 8K x 8 | NONE | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP12 | JP13 | JP14 | JP15 | JP16 |
|----------+---------+---------+---------+---------+---------|
| 32MB | Open | 2 & 3 | Open | Open | Open |
|----------+---------+---------+---------+---------+---------|
| 64KB | Open | 1 & 2 | Open | Closed | Open |
|----------+---------+---------+---------+---------+---------|
| 128KB | 2 & 3 | 2 & 3 | Open | Closed | Closed |
|----------+---------+---------+---------+---------+---------|
| 256KB | 1 & 2 | 1 & 2 | Closed | Closed | Closed |
|------------------------------------------------------------|
| Note: pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| CPU Type | J17 | J18 |
|-------------------+--------------------+-------------------|
| 80486SX | pins 2 & 3 closed | Open |
|-------------------+--------------------+-------------------|
| 80486DX/DX2 | pins 1, 2, 3 & 4 | pins 1 & 2 closed |
| | closed | |
|-------------------+--------------------+-------------------|
| Pentium Overdrive | pins 1, 2, 3 & 4 | pins 2 & 3 closed |
| | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (CHRONTEL CH9007C CLOCK) |
|------------------------------------------------------------|
| Speed | JP8 | JP9 |
|------------------+--------------------+--------------------|
| 25MHz | pins 1 & 2 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 33MHz | pins 2 & 3 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 40MHz | pins 1 & 2 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 50iMHz | pins 1 & 2 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 50MHz | pins 2 & 3 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 66iMHz | pins 2 & 3 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (PHASE LINE PLL52C05) |
|------------------------------------------------------------|
| Speed | JP8 | JP9 | JP21 |
|----------+-------------------+-------------------+---------|
| 25MHz | pins 1 & 2 closed | pins 1 & 2 closed | Closed |
|----------+-------------------+-------------------+---------|
| 33MHz | pins 2 & 3 closed | pins 1 & 2 closed | Closed |
|----------+-------------------+-------------------+---------|
| 40MHz | pins 1 & 2 closed | pins 2 & 3 closed | Open |
|----------+-------------------+-------------------+---------|
| 50iMHz | pins 1 & 2 closed | pins 1 & 2 closed | Closed |
|----------+-------------------+-------------------+---------|
| 50MHz | pins 2 & 3 closed | pins 2 & 3 closed | Open |
|----------+-------------------+-------------------+---------|
| 66iMHz | pins 2 & 3 closed | pins 1 & 2 closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA ID4 CONFIGURATION |
|------------------------------------------------------------|
| 50MHz delay | JP4 | JP5 |
|------------------+--------------------+--------------------|
| No delay | pins 1 & 2 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 1 - T | pins 2 & 3 closed | pins 2 & 3 closed |
+------------------------------------------------------------+