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# TMC RESEARCH CORPORATION
PCI48AF (VER. 3.0)
Processor SL80486SX/80486SX/SL80486SX2/SL80486DX/80486DX/CX486M7/
TI486DX2/UMCU5/(SL)AM486DX2/AM486DX2/SL80486DX2/80486DX2/CXM1/(SL)AM486DX4/AM486DX4/80486DX4/P24D/Pentium
Overdrive
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/100(internal)/ 120(internal)MHz
Speed
Chip Set ALI
Max. 128MB
Onboard
DRAM
Cache 128/256/512KB
BIOS Unidentified
Dimensions 254mm x 218mm
I/O PS/2 mouse interface, parallel port, serial ports (2), 32-bit PCI slots (4), floppy drive interface, IDE
Options interface (2)
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+---------------+------------|
| Serial port 1 | J1 | Speaker | JP23 pins |
| | | | 1 - 4 |
|--------------------+----------+---------------+------------|
| Serial port 2 | J2 | Turbo switch | JP23 pins |
| | | | 7 & 17 |
|--------------------+----------+---------------+------------|
| Parallel port | J3 | Turbo LED | JP23 pins |
| | | | 8 & 18 |
|--------------------+----------+---------------+------------|
| Floppy drive | J4 | Reset switch | JP23 pins |
| interface | | | 9 & 19 |
|--------------------+----------+---------------+------------|
| IDE interface 1 | J5 | Power LED & | JP23 pins |
| | | keylock | 11 - 15 |
|--------------------+----------+---------------+------------|
| IDE interface 2 | J6 | IDE interface | JP23 pins |
| | | LED | 10 & 20 |
|--------------------+----------+---------------+------------|
| PS/2 mouse | JP3 | 32-bit PCI | PC1 - PC4 |
| interface | | slots | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|----------------------------------+--------+----------------|
| » | CMOS memory normal operation | JP22 | pins 1 & 2 |
| | | | closed |
|---+------------------------------+--------+----------------|
| | CMOS memory clear | JP22 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | NONE | NONE |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 2MB | (1) 512K x | NONE | NONE | NONE |
| | 36 | | | |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 512K x | NONE | (1) 256K x | (1) 256K x |
| | 36 | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 512K x | NONE | (1) 512K x | NONE |
| | 36 | | 36 | |
|-------+-------------+------------+------------+------------|
| 5MB | (1) 256K x | (1) 1M x | NONE | NONE |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 6MB | (1) 256K x | (1) 256K x | (1) 1M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 6MB | (1) 512K x | NONE | (1) 1M x | NONE |
| | 36 | | 36 | |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 2M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 10MB | (1) 256K x | (1) 256K x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 10MB | (1) 512K x | NONE | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 10MB | (1) 512K x | NONE | (1) 2M x | NONE |
| | 36 | | 36 | |
|-------+-------------+------------+------------+------------|
| 12MB | (1) 1M x 36 | NONE | (1) 2M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 2M x 36 | NONE | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 2M x 36 | NONE | (1) 2M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 17MB | (1) 256K x | (1) 4M x | NONE | NONE |
| | 36 | 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) 16M x | NONE | NONE | NONE |
| | 36 | | | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | NONE | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | NONE | (1) 8M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16M x | (1) 16M x | NONE | NONE |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 32M x | NONE | NONE | NONE |
| | 36 | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 128KB | (4) 32K x 8 | (1) 8K x 8 |
|------------------+--------------------+--------------------|
| 256KB | (4) 64K x 8 | (1) 16K x 8 |
|------------------+--------------------+--------------------|
| 512KB | (4) 128K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP4 | JP5 |
|------------------+--------------------+--------------------|
| 128KB | pins 2 & 3 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 256KB | pins 2 & 3 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 512KB | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP10 | JP11 | JP12 | JP13 | JP14 |
|--------------+---------+---------+--------+-------+--------|
| SL80486SX | 1 & 2 | 1 & 2 | 3 & 4 | 3 & 4 | Closed |
|--------------+---------+---------+--------+-------+--------|
| 80486SX | 1 & 2 | 1 & 2 | Open | 1 & 2 | Open |
|--------------+---------+---------+--------+-------+--------|
| SL80486SX2 | 1 & 2 | 1 & 2 | 3 & 4 | 3 & 4 | Closed |
|--------------+---------+---------+--------+-------+--------|
| SL80486DX | 2 & 3 | 1 & 2 | 3 & 4 | 3 & 4 | Closed |
|--------------+---------+---------+--------+-------+--------|
| 80486DX | 2 & 3 | 1 & 2 | Open | 1 & 2 | Open |
|--------------+---------+---------+--------+-------+--------|
| CX486M7 | 2 & 3 | 1 & 2 | 5 & 6 | 5 & 6 | Closed |
|--------------+---------+---------+--------+-------+--------|
| TI486DX2 | 2 & 3 | 1 & 2 | 5 & 6 | 5 & 6 | Closed |
|--------------+---------+---------+--------+-------+--------|
| UMC U5 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | Open |
|--------------+---------+---------+--------+-------+--------|
| SL AM486DX2 | 2 & 3 | 2 & 3 | 3 & 4 | 3 & 4 | Closed |
|--------------+---------+---------+--------+-------+--------|
| AM486DX2 | 2 & 3 | 1 & 2 | Open | 1 & 2 | Open |
|--------------+---------+---------+--------+-------+--------|
| SL80486DX2 | 2 & 3 | 1 & 2 | 3 & 4 | 3 & 4 | Closed |
|--------------+---------+---------+--------+-------+--------|
| 80486DX2 | 2 & 3 | 1 & 2 | Open | 1 & 2 | Open |
|--------------+---------+---------+--------+-------+--------|
| CXM1 | 2 & 3 | 1 & 2 | 3 & 4 | 3 & 4 | Closed |
|--------------+---------+---------+--------+-------+--------|
| SL AM486DX4 | 2 & 3 | 2 & 3 | 3 & 4 | 3 & 4 | Closed |
|--------------+---------+---------+--------+-------+--------|
| AM486DX4 | 2 & 3 | 1 & 2 | Open | 1 & 2 | Closed |
|--------------+---------+---------+--------+-------+--------|
| 80486DX4 | 2 & 3 | 1 & 2 | 3 & 4 | 3 & 4 | Closed |
|--------------+---------+---------+--------+-------+--------|
| P24D | 2 & 3 | 2 & 3 | 3 & 4 | 3 & 4 | Closed |
|--------------+---------+---------+--------+-------+--------|
| P24T | 2 & 3 | 2 & 3 | 3 & 4 | 3 & 4 | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP15 | JP17 | JP18 | JP19 | JP20 |
|-------------+--------+------------+-------+-------+--------|
| SL80486SX | Open | Open | 3 & 4 | Open | Closed |
|-------------+--------+------------+-------+-------+--------|
| 80486SX | Open | Open | Open | Open | Closed |
|-------------+--------+------------+-------+-------+--------|
| SL80486SX2 | Open | Open | 3 & 4 | Open | Closed |
|-------------+--------+------------+-------+-------+--------|
| SL80486DX | Open | Open | 3 & 4 | 2 & 3 | Closed |
|-------------+--------+------------+-------+-------+--------|
| 80486DX | Open | Open | Open | 2 & 3 | Closed |
|-------------+--------+------------+-------+-------+--------|
| CX486M7 | Open | 1 & 2 | 5 & 6 | 2 & 3 | Open |
|-------------+--------+------------+-------+-------+--------|
| TI486DX2 | Open | 1 & 2 | 5 & 6 | 2 & 3 | Open |
|-------------+--------+------------+-------+-------+--------|
| UMC U5 | Open | Open | 1 & 2 | Open | Closed |
|-------------+--------+------------+-------+-------+--------|
| SL AM486DX2 | Open | 1 & 3, 5 & | 3 & 4 | 2 & 3 | Closed |
| | | 6 | | | |
|-------------+--------+------------+-------+-------+--------|
| AM486DX2 | Closed | Open | Open | 2 & 3 | Closed |
|-------------+--------+------------+-------+-------+--------|
| SL80486DX2 | Open | Open | 3 & 4 | 2 & 3 | Closed |
|-------------+--------+------------+-------+-------+--------|
| 80486DX2 | Open | Open | Open | 2 & 3 | Closed |
|-------------+--------+------------+-------+-------+--------|
| CXM1 | Open | 5 & 6 | 3 & 4 | 2 & 3 | Closed |
|-------------+--------+------------+-------+-------+--------|
| SL AM486DX4 | Open | 5 & 6 | 3 & 4 | 2 & 3 | Closed |
|-------------+--------+------------+-------+-------+--------|
| AM486DX4 | Open | Open | Open | 2 & 3 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP15 | JP17 | JP18 | JP19 | JP20 |
|------------+--------+---------+---------+--------+---------|
| 80486DX4 | Open | Open | 3 & 4 | 2 & 3 | Closed |
|------------+--------+---------+---------+--------+---------|
| P24D | Open | 5 & 6 | 3 & 4 | 2 & 3 | Closed |
|------------+--------+---------+---------+--------+---------|
| P24T | Open | Open | 3 & 4 | 1 & 2 | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP6 | JP8 |
|--------------------+-------------------+-------------------|
| 25MHz | Open | Open |
|--------------------+-------------------+-------------------|
| 33MHz | Closed | Closed |
|--------------------+-------------------+-------------------|
| 40MHz | Closed | Open |
|--------------------+-------------------+-------------------|
| 50iMHz | Open | Open |
|--------------------+-------------------+-------------------|
| 50MHz | Open | Closed |
|--------------------+-------------------+-------------------|
| 66iMHz | Closed | Closed |
|--------------------+-------------------+-------------------|
| 75iMHz | Open | Open |
|--------------------+-------------------+-------------------|
| 80iMHz | Closed | Open |
|--------------------+-------------------+-------------------|
| 100iMHz | Closed | Closed |
|--------------------+-------------------+-------------------|
| 120iMHz | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP21 |
|----------------------------+-------------------------------|
| 3.45v | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 4v | pins 3 & 4 closed |
|----------------------------+-------------------------------|
| 5v | pins 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CONFIGURATION |
|------------------------------------------------------------|
| DMA | JP1 | JP2 |
|------------------+--------------------+--------------------|
| DMA 1 | pins 2 & 3 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| DMA 3 | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+