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# TMC RESEARCH CORPORATION
PAT48PG4 (VER. 1.2A)
Processor 80486SX/SL80486SX/ODP486/CX486DX/80486DX/SL80486DX/
80486DX2/SL80486DX2/AM486DX4/(SL)AM486DX4/80486DX4/
SL80486DX4/P24T/P24CT/CX5X86
Processor 25/33/40/50(internal)/50/63(internal)/66(internal)/80(internal)/
Speed 83(internal)/100(internal)/120(internal)MHz
Chip Set OPTI
Video Chip None
Set
Maximum 128MB
Onboard
Memory
Maximum None
Video
Memory
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 | J5 | IDE interface | J7 pins |
| connector | | LED | 10 & 20 |
|------------------+-----------+-----------------+-----------|
| IDE interface | J6 | Power LED & | J7 pins |
| LED | | keylock | 11 - 15 |
|------------------+-----------+-----------------+-----------|
| Speaker | J7 pins 1 | Green PC LED | J8 |
| | – 4 | | |
|------------------+-----------+-----------------+-----------|
| Turbo switch | J7 pins 7 | 32-bit VESA | SL1 – SL3 |
| | & 17 | local bus slots | |
|------------------+-----------+-----------------+-----------|
| Turbo LED | J7 pins 8 | | |
| | & 18 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| | Monitor type select color | JP1 | Closed |
|---+---------------------------------+-------+--------------|
| | Monitor type select monochrome | JP1 | Open |
|---+---------------------------------+-------+--------------|
| | Battery type select internal | JP2 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Battery type select external | JP2 | Open |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | JP2 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | BIOS type select EPROM | JP3 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | BIOS type select flash BIOS | JP3 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP11 | Unidentified |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION 1 |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 2MB | None | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | None | (1) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 5MB | None | (1) 256K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 6MB | (4) 1M x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 8MB | None | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 8MB | (4) 1M x 9 | (1) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 16MB | None | (1) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 17MB | None | (1) 256K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 20MB | None | (1) 1M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (4) 4M x 9 | (1) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | None | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | (4) 4M x 9 | (1) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 64MB | None | (1) 16M x 36 | None |
|------------+---------------+---------------+---------------|
| 128MB | None | (1) 16M x 36 | (1) 16M x 36 |
|------------+---------------+---------------+---------------|
| 128MB | (4) 16M x 9 | (1) 16M x 36 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION 2 |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 2MB | (4) 256K x 9 | None | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | (4) 1M x 9 | None | None |
|------------+---------------+---------------+---------------|
| 5MB | (4) 256K x 9 | None | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 6MB | (4) 256K x 9 | (1) 1M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 8MB | (4) 1M x 9 | None | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 8MB | (4) 1M x 9 | (1) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 16MB | (4) 4M x 9 | None | None |
|------------+---------------+---------------+---------------|
| 17MB | (4) 256K x 9 | None | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (4) 1M x 9 | None | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (4) 1M x 9 | (1) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | (4) 4M x 9 | None | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | (4) 4M x 9 | (1) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 64MB | (4) 16M x 9 | None | None |
|------------+---------------+---------------+---------------|
| 128MB | (4) 16M x 9 | None | (1) 16M x 36 |
|------------+---------------+---------------+---------------|
| 128MB | (4) 16M x 9 | (1) 16M x 36 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION 3 |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 2MB | None | (1) 512K x 36 | None |
|------------+---------------+---------------+---------------|
| 4MB | None | (1) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 4MB | None | (1) 512K x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 6MB | None | (1) 512K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 6MB | (4) 1M x 9 | None | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 8MB | None | (1) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 8MB | None | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 8MB | (4) 1M x 9 | None | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 10MB | None | (1) 512K x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 12MB | None | (1) 1M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 16MB | None | (1) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 16MB | None | (1) 2M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 20MB | None | (1) 1M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (4) 4M x 9 | None | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | None | (1) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | None | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | None | (1) 16M x 36 | None |
|------------+---------------+---------------+---------------|
| 64MB | None | (1) 8M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 128MB | None | (1) 32M x 36 | None |
|------------+---------------+---------------+---------------|
| 128MB | None | (1) 16M x 36 | (1) 16M x 36 |
|------------+---------------+---------------+---------------|
| 128MB | (4) 16M x 9 | None | (1) 16M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Configuration | RNC1 | RNC2 | RNC3 |
|---------------+--------------+--------------+--------------|
| 1 | Installed | Not | Not |
| | | installed | installed |
|---------------+--------------+--------------+--------------|
| 2 | Not | Installed | Not |
| | installed | | installed |
|---------------+--------------+--------------+--------------|
| 3 | Not | Not | Installed |
| | installed | installed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG0 | TAG1 |
|-------+-------------+-------------+------+-----------------|
| 128KB | (4) 32K x 8 | None | None | (1) 8K x 8 |
|-------+-------------+-------------+------+-----------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | None | (1) 16K/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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| 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 |
|----------+---------------------+--------+---------+--------|
| 63iMHz | 1 & 2, 5 & 6 | 1 & 2 | Open | Open |
|----------+---------------------+--------+---------+--------|
| 66iMHz | 1 & 2, 3 & 4 | 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 |
|----------+---------------------+--------+---------+--------|
| 120iMHz | 3 & 4, 5 & 6, 7 & 8 | 2 & 3 | Open | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | RNA1 | RNA2 | RNA3 | RNA4 |
|-----------+------------+-----------+-----------+-----------|
| 80486SX | Not | Not | Installed | Not |
| | installed | installed | | installed |
|-----------+------------+-----------+-----------+-----------|
| Intel | Not | Not | Not | Not |
| S-series | installed | installed | installed | installed |
|-----------+------------+-----------+-----------+-----------|
| ODP486 | Not | Installed | Not | Not |
| | installed | | installed | installed |
|-----------+------------+-----------+-----------+-----------|
| CX486DX | Not | Not | Not | Installed |
| | installed | installed | installed | |
|-----------+------------+-----------+-----------+-----------|
| 80486DX | Installed | Not | Not | Not |
| | | installed | installed | installed |
|-----------+------------+-----------+-----------+-----------|
| 80486DX2 | Installed | Not | Not | Not |
| | | installed | installed | installed |
|-----------+------------+-----------+-----------+-----------|
| AM486DX4 | Installed | Not | Not | Not |
| | | installed | installed | installed |
|-----------+------------+-----------+-----------+-----------|
| AMD | Not | Not | Not | Not |
| enhanced | installed | installed | installed | installed |
|-----------+------------+-----------+-----------+-----------|
| 80486DX4 | Installed | Not | Not | Not |
| | | installed | installed | installed |
|-----------+------------+-----------+-----------+-----------|
| P24T | Not | Installed | Not | Not |
| | installed | | installed | installed |
|-----------+------------+-----------+-----------+-----------|
| P24CT | Not | Installed | Not | Not |
| | installed | | installed | installed |
|-----------+------------+-----------+-----------+-----------|
| CX 5X86 | Installed | Not | Not | Not |
| | | installed | installed | installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | RNB1 | RNB2 | RNB3 | W8 |
|------------+------------+------------+------------+--------|
| 80486SX | Installed | Not | Not | Closed |
| | | installed | installed | |
|------------+------------+------------+------------+--------|
| Intel | Not | Installed | Not | N/A |
| S-series | installed | | installed | |
|------------+------------+------------+------------+--------|
| ODP486 | Installed | Not | Not | Open |
| | | installed | installed | |
|------------+------------+------------+------------+--------|
| CX486DX | Not | Not | Installed | Closed |
| | installed | installed | | |
|------------+------------+------------+------------+--------|
| 80486DX | Installed | Not | Not | Closed |
| | | installed | installed | |
|------------+------------+------------+------------+--------|
| 80486DX2 | Installed | Not | Not | Closed |
| | | installed | installed | |
|------------+------------+------------+------------+--------|
| AM486DX4 | Not | Installed | Not | Open |
| | installed | | installed | |
|------------+------------+------------+------------+--------|
| AMD | Not | Installed | Not | N/A |
| enhanced | installed | | installed | |
|------------+------------+------------+------------+--------|
| 80486DX4 | Installed | Not | Not | Open |
| | | installed | installed | |
|------------+------------+------------+------------+--------|
| P24T | Installed | Not | Not | Open |
| | | installed | installed | |
|------------+------------+------------+------------+--------|
| P24CT | Installed | Not | Not | Open |
| | | installed | installed | |
|------------+------------+------------+------------+--------|
| CX 5X86 | Not | Installed | Not | Open |
| | installed | | installed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (WRITE BACK) |
|------------------------------------------------------------|
| Type | JP15 | JP16 |
|-------------------+--------------------+-------------------|
| AMD write back | Pins 1 & 2 closed | Pins 2 & 3 closed |
|-------------------+--------------------+-------------------|
| Intel write back | Pins 1 & 2 closed | Pins 2 & 3 closed |
|-------------------+--------------------+-------------------|
| Other CPU types | Open | Open |
+------------------------------------------------------------+