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# TMC RESEARCH CORPORATION
PAT48AN
Processor CX486M6/80486SX/80487SX/CX486M7/80486DX/80486DX2/
Pentium Overdrive
Processor 25/33/40/50(internal)/50/66(internal)/MHz
Speed
Chip Set ALI
Max. Onboard 128MB
DRAM
Cache 64/128/256KB
BIOS Unidentified
Dimensions 254mm x 218mm
I/O Options 32-bit VESA local bus slots (3)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+------------------+-----------|
| External battery | J2 | Reset switch | J8 pins 9 |
| | | | & 19 |
|------------------+----------+------------------+-----------|
| IDE interface | J7 | IDE interface | J8 pins |
| LED | | LED | 10 & 20 |
|------------------+----------+------------------+-----------|
| Speaker | J8 pins | Power LED & | J8 pins |
| | 1 - 4 | keylock | 11 - 15 |
|------------------+----------+------------------+-----------|
| Turbo switch | J8 pins | 32-bit VESA | SL1 - SL3 |
| | 7 & 17 | local bus slots | |
|------------------+----------+------------------+-----------|
| Turbo LED | J8 pins | | |
| | 8 & 18 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Monitor type select color | J3 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | J3 | Open |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J4 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J5 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Battery type select internal | JP2 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Battery type select external | JP2 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP2 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION 1 |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 4MB | (1) 1M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 16MB | (1) 4M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 36 | (1) 1M x 36 | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 36 | (1) 4M x 36 | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 36MB | (1) 1M x 36 | (1) 4M x 36 | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 36MB | (1) 4M x 36 | (1) 4M x 36 | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 64MB | (1) 16M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 72MB | (1) 1M x 36 | (1) 1M x 36 | (4) 16M x 9 |
|------------+---------------+---------------+---------------|
| 80MB | (1) 4M x 36 | (1) 16M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 84MB | (1) 1M x 36 | (1) 4M x 36 | (4) 16M x 9 |
|------------+---------------+---------------+---------------|
| 84MB | (1) 4M x 36 | (1) 16M x 36 | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 96MB | (1) 4M x 36 | (1) 4M x 36 | (4) 16M x 9 |
|------------+---------------+---------------+---------------|
| 96MB | (1) 4M x 36 | (1) 16M x 36 | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 128MB | (1) 16M x 36 | (1) 16M x 36 | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION 2 |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 4MB | NONE | NONE | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 8MB | (1) 1M x 36 | NONE | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 16MB | NONE | NONE | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 20MB | (1) 4M x 36 | NONE | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 36 | (1) 4M x 36 | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 24MB | (1) 4M x 36 | (1) 1M x 36 | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 36 | (1) 1M x 36 | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 4M x 36 | NONE | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 36MB | (1) 4M x 36 | (1) 4M x 36 | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 36MB | (1) 4M x 36 | (1) 1M x 36 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION 2 (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 64MB | NONE | NONE | (4) 16M x 9 |
|------------+---------------+---------------+---------------|
| 72MB | (1) 1M x 36 | (1) 16M x 36 | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 80MB | (1) 16M x 36 | NONE | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 84MB | (1) 4M x 36 | (1) 16M x 36 | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 84MB | (1) 16M x 36 | (1) 1M x 36 | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 96MB | (1) 4M x 36 | (1) 16M x 36 | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 96MB | (1) 16M x 36 | (1) 4M x 36 | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 128MB | (1) 16M x 36 | NONE | (4) 16M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION 3 |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 2 |
|------------------+--------------------+--------------------|
| 12MB | (1) 2M x 36 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 24MB | (1) 2M x 36 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 36MB | (1) 8M x 36 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 48MB | (1) 8M x 36 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 72MB | (1) 2M x 36 | (4) 16M x 9 |
|------------------+--------------------+--------------------|
| 96MB | (1) 8M x 36 | (4) 16M x 9 |
|------------------+--------------------+--------------------|
| 128MB | (1) 32M x 36 | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Configuration | RNA | RNB | RNC |
|---------------+--------------+--------------+--------------|
| 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 | TAG |
|------------+---------------+---------------+---------------|
| 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 RESISTOR CONFIGURATION |
|------------------------------------------------------------|
| Size | RN64 | RN128 | RN256 |
|------------+---------------+---------------+---------------|
| 64KB | Installed | Not installed | Not installed |
|------------+---------------+---------------+---------------|
| 128KB | Not installed | Installed | Not installed |
|------------+---------------+---------------+---------------|
| 256KB | Not installed | Not installed | Installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP6 | JP7 | JP8 | JP12 |
|------------+-----------+-----------+-----------+-----------|
| CX486M6 | pins 2 & | pins 1 & | pins 2 & | Open |
| | 3 closed | 2 closed | 3 closed | |
|------------+-----------+-----------+-----------+-----------|
| CXM6 | pins 1 & | pins 1 & | pins 1 & | pins 2 & |
| module | 2 closed | 2 closed | 2 closed | 3 closed |
|------------+-----------+-----------+-----------+-----------|
| 80486SX | pins 1 & | pins 1 & | pins 1 & | Open |
| | 2 closed | 2 closed | 2 closed | |
|------------+-----------+-----------+-----------+-----------|
| 80487SX | pins 1 & | pins 1 & | pins 1 & | pins 1 & |
| | 2 closed | 2 closed | 2 closed | 2 closed |
|------------+-----------+-----------+-----------+-----------|
| CX486M7 | pins 1 & | pins 1 & | pins 1 & | pins 2 & |
| | 2 closed | 2 closed | 2 closed | 3 closed |
|------------+-----------+-----------+-----------+-----------|
| 80486DX | pins 1 & | pins 1 & | pins 1 & | pins 2 & |
| | 2 closed | 2 closed | 2 closed | 3 closed |
|------------+-----------+-----------+-----------+-----------|
| 80486DX2 | pins 1 & | pins 1 & | pins 1 & | pins 2 & |
| | 2 closed | 2 closed | 2 closed | 3 closed |
|------------+-----------+-----------+-----------+-----------|
| Pentium | pins 1 & | pins 2 & | pins 1 & | pins 1 & |
| Overdrive | 2 closed | 3 closed | 2 closed | 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP13 | JP14 | JP15 | JP16 |
|----------------+------------+------------+--------+--------|
| CX486M6 | pins 1 & 2 | pins 1 & 2 | Open | Open |
| | closed | closed | | |
|----------------+------------+------------+--------+--------|
| CXM6 module | pins 1 & 2 | pins 1 & 2 | Closed | Closed |
| | closed | closed | | |
|----------------+------------+------------+--------+--------|
| 80486SX | pins 1 & 2 | pins 1 & 2 | Closed | Closed |
| | closed | closed | | |
|----------------+------------+------------+--------+--------|
| 80487SX | pins 1 & 2 | pins 1 & 2 | Closed | Closed |
| | closed | closed | | |
|----------------+------------+------------+--------+--------|
| CX486M7 | pins 1 & 2 | pins 1 & 2 | Closed | Closed |
| | closed | closed | | |
|----------------+------------+------------+--------+--------|
| 80486DX | pins 1 & 2 | pins 1 & 2 | Closed | Closed |
| | closed | closed | | |
|----------------+------------+------------+--------+--------|
| 80486DX2 | pins 1 & 2 | pins 1 & 2 | Closed | Closed |
| | closed | closed | | |
|----------------+------------+------------+--------+--------|
| Pentium | pins 2 & 3 | pins 2 & 3 | Closed | Closed |
| Overdrive | closed | closed | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP17 | JP18 | JP19 | JP26 | JP27 |
|------------------+-------+-------+--------+-------+--------|
| CX486M6 | 2 & 3 | 1 & 2 | Closed | 1 & 2 | Open |
|------------------+-------+-------+--------+-------+--------|
| CXM6 module | Open | 2 & 3 | Open | 2 & 3 | Closed |
|------------------+-------+-------+--------+-------+--------|
| 80486SX | Open | 1 & 2 | Open | 1 & 2 | Open |
|------------------+-------+-------+--------+-------+--------|
| 80487SX | Open | 2 & 3 | Open | 1 & 2 | Open |
|------------------+-------+-------+--------+-------+--------|
| CX486M7 | Open | 2 & 3 | Open | 1 & 2 | Open |
|------------------+-------+-------+--------+-------+--------|
| 80486DX | Open | 2 & 3 | Open | 1 & 2 | Open |
|------------------+-------+-------+--------+-------+--------|
| 80486DX2 | Open | 2 & 3 | Open | 1 & 2 | Open |
|------------------+-------+-------+--------+-------+--------|
| Pentium | 1 & 2 | 2 & 3 | Open | 1 & 2 | Open |
| Overdrive | | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP20 | JP24 |
|--------+-------------------------------+-------------------|
| 25MHz | pins 1 & 2, 5 & 6, 7 & 8 | pins 1 & 2 closed |
| | closed | |
|--------+-------------------------------+-------------------|
| 33MHz | pins 1 & 2, 3 & 4, 7 & 8 | pins 1 & 2 closed |
| | closed | |
|--------+-------------------------------+-------------------|
| 40MHz | pins 3 & 4, 5 & 6, 7 & 8 | pins 2 & 3 closed |
| | closed | |
|--------+-------------------------------+-------------------|
| 50iMHz | pins 1 & 2, 5 & 6, 7 & 8 | pins 1 & 2 closed |
| | closed | |
|--------+-------------------------------+-------------------|
| 50MHz | pins 1 & 2, 5 & 6, 7 & 8 | pins 2 & 3 closed |
| | closed | |
|--------+-------------------------------+-------------------|
| 66iMHz | pins 1 & 2, 3 & 4, 7 & 8 | pins 1 & 2 closed |
| | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU FREQUENCY CONFIGURATION |
|------------------------------------------------------------|
| Frequency | JP9 | JP21 | JP22 |
|-----------+----------------+---------------+---------------|
| Single | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed |
|-----------+----------------+---------------+---------------|
| Dual | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE CONFIGURATION |
|------------------------------------------------------------|
| Wait states | JP23 |
|----------------------------+-------------------------------|
| 0 wait states | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 1 wait state | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL-BUS MASTER AND DRAM BANK CONFIGURATION |
|------------------------------------------------------------|
| VL-bus master | DRAM banks | JP10 | JP11 |
|---------------+------------+------------------+------------|
| 1 | 4 | pins 2 & 3 | pins 1 & 2 |
| | | closed | closed |
|---------------+------------+------------------+------------|
| 2 | 2 | pins 2 & 3 | pins 1 & 2 |
| | | closed | closed |
+------------------------------------------------------------+