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# TMC RESEARCH CORPORATION
PAT48PG (VER. 2.0)/PAT48PG4 (VER. 1.0C)
Processor 80486SX/SL80486SX/CX486DX/80486DX/SL80486DX/80486DX2/
SL80486DX2/80486DX4/Pentium Overdrive
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/83(internal)
Speed 100(internal)MHz
Chip Set OPTI
Max. 128MB
Onboard
DRAM
Cache 128/256KB
BIOS Unidentified
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 | J3 | Reset switch | J7 pins 9 |
| | | | & 19 |
|------------------+-----------+-----------------+-----------|
| Green PC LED | J5 | IDE interface | J7 pins |
| | | LED | 10 & 20 |
|------------------+-----------+-----------------+-----------|
| IDE interface | J6 | Power LED & | J7 pins |
| LED | | keylock | 11 - 15 |
|------------------+-----------+-----------------+-----------|
| Speaker | J7 pins 1 | Green PC | J8 |
| | - 4 | connector | |
|------------------+-----------+-----------------+-----------|
| Turbo switch | J7 pins 7 | 32-bit VESA | SL1 - SL3 |
| | & 17 | local bus slots | |
|------------------+-----------+-----------------+-----------|
| Turbo LED | J7 pins 8 | | |
| | & 18 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Monitor type select color | JP1 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP1 | Open |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP2 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP2 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Battery type select external | JP2 | Open |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP10 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP11 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | W1 | N/A |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 1M x 36 | NONE | (1) 1M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 2M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 12MB | (1) 1M x 36 | NONE | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 2M x 36 | NONE | (1) 2M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 8M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 16M x | NONE | NONE | NONE |
| | 36 | | | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | NONE | (1) 8M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16M x | (1) 16M x | NONE | NONE |
| | 36 | 36 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|-------+-------------+-------------+------------------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
|-------+-------------+-------------+------------------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 16K x 8 or (1) 32K |
| | | | x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP6 | JP7 |
|------------------+--------------------+--------------------|
| 128KB | pins 1 & 2 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 256KB | pins 2 & 3 closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP15 | JP16 |
|--------------------+------------------+--------------------|
| Write back | Closed | pins 2 & 3 closed |
|--------------------+------------------+--------------------|
| Write through | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | RNA1 | RNA2 | RNA3 | RNA4 | W8 |
|--------+-----------+----------+----------+----------+------|
|80486SX | Not | Not |Installed | Not |Closed|
| | installed |installed | |installed | |
|--------+-----------+----------+----------+----------+------|
|CX486DX | Not | Not | Not |Installed |Closed|
| | installed |installed |installed | | |
|--------+-----------+----------+----------+----------+------|
|80486DX | Installed | Not | Not | Not |Closed|
| | |installed |installed |installed | |
|--------+-----------+----------+----------+----------+------|
|80486DX2| Installed | Not | Not | Not |Closed|
| | |installed |installed |installed | |
|--------+-----------+----------+----------+----------+------|
|80486DX4| Installed | Not | Not | Not | Open |
| | |installed |installed |installed | |
|--------+-----------+----------+----------+----------+------|
| P24T | Not |Installed | Not | Not |Closed|
| | installed | |installed |installed | |
|------------------------------------------------------------|
|Note: The 80486DX4 is only available on the PAT48PG4. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | RNB1 | RNB2 | RNB3 |
|---------------+---------------+---------------+------------|
| Cyrix series | Not installed | Not installed | Installed |
|---------------+---------------+---------------+------------|
| 80486 series | Installed | Not installed | Not |
| | | | installed |
|---------------+---------------+---------------+------------|
| SL80486 | Not installed | Installed | Not |
| series | | | installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP5 | JP12 | JP13 | JP14 |
|----------+---------------------+--------+---------+--------|
| 25MHz | 1 & 2, 5 & 6 | 1 & 2 | Open | Open |
|----------+---------------------+--------+---------+--------|
| 33MHz | 1 & 2, 3 & 4 | 1 & 2 | Open | Open |
|----------+---------------------+--------+---------+--------|
| 40MHz | 3 & 4, 5 & 6, 7 & 8 | 2 & 3 | Open | Closed |
|----------+---------------------+--------+---------+--------|
| 50iMHz | 1 & 2, 5 & 6 | 1 & 2 | Open | Open |
|----------+---------------------+--------+---------+--------|
| 50MHz | 1 & 2, 5 & 6, 7 & 8 | 2 & 3 | Closed | Closed |
|----------+---------------------+--------+---------+--------|
| 66iMHz | 1 & 2, 3 & 4 | 1 & 2 | Open | Open |
|----------+---------------------+--------+---------+--------|
| 75iMHz | 1 & 2, 5 & 6 | 1 & 2 | Open | Open |
|----------+---------------------+--------+---------+--------|
| 80iMHz | 3 & 4, 5 & 6, 7 & 8 | 2 & 3 | Open | Closed |
|----------+---------------------+--------+---------+--------|
| 83iMHz | 1 & 2, 3 & 4 | 1 & 2 | Open | Open |
|----------+---------------------+--------+---------+--------|
| 100iMHz | 1 & 2, 3 & 4 | 1 & 2 | Open | Open |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+