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# TMC RESEARCH CORPORATION
PAT 38PC
Processor 80386DX
Processor Speed 25/33MHz
Chip Set Unidentifed
Max. Onboard DRAM 24MB (16MB on external memory card)
Cache 32/64KB
BIOS Unidentified
Dimensions 330mm x 218mm
I/O Options External memory card slots
NPU Options 80387/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| IDE interface LED | J24 | Reset switch | J25 (9 & |
| | | | 19) |
|-------------------+----------+------------------+----------|
| Speaker | J25 (1 - | IDE interface | J25 (10 |
| | 4) | LED | & 20) |
|-------------------+----------+------------------+----------|
| Turbo switch | J25 (7 & | Power LED & | J25 (11 |
| | 17) | keylock | - 15) |
|-------------------+----------+------------------+----------|
| Turbo LED | J25 (8 & | External memory | S1 |
| | 18) | card slot | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | J1 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J23 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | JP2 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP2 | Open |
|---+----------------------------------+--------+------------|
| » | Pipeline mode enabled | JP9 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Pipeline mode disabled | JP9 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | NPU disabled | JP10 | Open |
|---+----------------------------------+--------+------------|
| | NPU enabled | JP10 | Closed |
|---+----------------------------------+--------+------------|
| » | Battery type select internal | JP15 | Closed |
|---+----------------------------------+--------+------------|
| | Battery type select external | JP15 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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) 256K x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 5MB | (4) 1M x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 32KB | (4) 8K x 8 | NONE |
|------------------+--------------------+--------------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP4 | JP5 | JP6 | JP11 |
|------+------------------+--------+------------+------------|
| 32KB | pins 2 & 3 | Open | pins 1 & 2 | pins 1 & 2 |
| | closed | | closed | closed |
|------+------------------+--------+------------+------------|
| 64KB | pins 2 & 3 | Closed | pins 2 & 3 | pins 2 & 3 |
| | closed | | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE LINE SIZE CONFIGURATION |
|------------------------------------------------------------|
| Size | JP7 | JP8 |
|--------------------+------------------+--------------------|
| 4 bytes | Closed | pins 1 & 2 closed |
|--------------------+------------------+--------------------|
| 8 bytes | Closed | pins 2 & 3 closed |
|--------------------+------------------+--------------------|
| 16 bytes | Open | pins 2 & 3 closed |
+------------------------------------------------------------+
IMG IMG 2
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 3 | Bank 4 |
|------+-------------+-------------+------------+------------|
| 1MB | (4) 256K x | NONE | NONE | NONE |
| | 9 | | | |
|------+-------------+-------------+------------+------------|
| 2MB | (4) 256K x | (4) 256K x | NONE | NONE |
| | 9 | 9 | | |
|------+-------------+-------------+------------+------------|
| 3MB | (4) 256K x | (4) 256K x | (4) 256K x | NONE |
| | 9 | 9 | 9 | |
|------+-------------+-------------+------------+------------|
| 4MB | (4) 256K x | (4) 256K x | (4) 256K x | (4) 256K x |
| | 9 | 9 | 9 | 9 |
|------+-------------+-------------+------------+------------|
| 4MB | (4) 1M x 9 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 6MB | (4) 1M x 9 | (4) 256K x | (4) 256K x | NONE |
| | | 9 | 9 | |
|------+-------------+-------------+------------+------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 10MB | (4) 1M x 9 | (4) 1M x 9 | (4) 256K x | (4) 256K x |
| | | | 9 | 9 |
|------+-------------+-------------+------------+------------|
| 12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
|------+-------------+-------------+------------+------------|
| 16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
+------------------------------------------------------------+
IMG IMG 3
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0/2 | Bank 1/3 |
|------------------+--------------------+--------------------|
| 4MB | (36) 411000 | NONE |
|------------------+--------------------+--------------------|
| 8MB | (36) 411000 | (36) 411000 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP1 | JP2 | JP3 | JP4 | JP5 |
|-----------+----------+----------+--------+--------+--------|
| Bank 0/1 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
|-----------+----------+----------+--------+--------+--------|
| Bank 1/3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Setting | JP6 | JP7 | JP8 | JP9 | JP10 |
|-----------+----------+----------+--------+--------+--------|
| Bank 0/1 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
|-----------+----------+----------+--------+--------+--------|
| Bank 1/3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in closed position. |
+------------------------------------------------------------+