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# CAF TECHNOLOGY, INC.
C747 (Ver. 002)
Processor 80386DX/CX486DLC/80486SX/80487SX/80486DX/80486DX2
Processor 20/25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set EFAR
Max. Onboard 32MB
DRAM
SRAM Cache 64/256KB
BIOS AMI
Dimensions 331mm x 219mm
I/O Options Floppy drive interface, game port, IDE interface,
parallel port, serial port (2)
NPU Options 80387/CX83D87/3167
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| External battery | J3 | Floppy drive | CN1 |
| | | interface | |
|-------------------+----------+------------------+----------|
| IDE interface LED | J5 | Serial port 1 | CN2 |
|-------------------+----------+------------------+----------|
| Reset switch | J6 | Serial port 2 | CN3 |
|-------------------+----------+------------------+----------|
| Speaker | J7 | IDE interface | CN4 |
|-------------------+----------+------------------+----------|
| Turbo switch | J8 | Parallel port | CN5 |
|-------------------+----------+------------------+----------|
| Turbo LED | J9 | Game port | CN6 |
|-------------------+----------+------------------+----------|
| Power LED & | J10 | | |
| keylock | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Monitor type select color | JP1 | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP1 | open |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP6 | pins 2 & 3 |
| | (internal battery) | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory normal operation | JP6 | open |
| | (external battery) | | |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP6 | pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP2 | JP7 | JP8 | JP9 |
|-----------+------------+------------+------------+---------|
| 64KB | open | open | open | open |
|-----------+------------+------------+------------+---------|
| 256KB | closed | closed | closed | open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 64KB | (8) 8K x 8 | (1) 8K x 8 |
|------------------+--------------------+--------------------|
| 256KB | (8) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| CPU | JP3 | JP4 | JP5 |
|----------------+----------------+-----------+--------------|
| 80486DX2 1 | pins 1 & 2 | closed | pins 2 & 3 |
| | closed | | closed |
|----------------+----------------+-----------+--------------|
| 80486DX 1 | pins 1 & 2 | closed | pins 2 & 3 |
| | closed | | closed |
|----------------+----------------+-----------+--------------|
| 80487SX 1 | pins 1 & 2 | closed | pins 1 & 2 |
| | closed | | closed |
|----------------+----------------+-----------+--------------|
| CX486DLC 2 | N/A | N/A | N/A |
|----------------+----------------+-----------+--------------|
| 80486SX 1 | pins 2 & 3 | open | open |
| | closed | | |
|----------------+----------------+-----------+--------------|
| 80368DX 2 | N/A | N/A | N/A |
|------------------------------------------------------------|
| Note 1 :Jumpers JP10, JP11, JP12, JP13, JP14, JP15, JP16, |
| JP17, JP18, JP19, JP20, pins 2 & 3 closed. |
| |
| Note 2 :Jumpers JP10, JP11, JP12, JP13, JP14, JP15, JP16, |
| JP17, JP18, JP19, JP20, pins 1 & 2 closed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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) 1M x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 20MB | (4) 4M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU CLOCK CONFIGURATION |
|------------------------------------------------------------|
| CPU | JP21 | JP22 | JP23 | JP30 |
|-------------+--------+--------+--------+-------------------|
| 80486-50 | open | open | open | pins 2 & 3 closed |
|-------------+--------+--------+--------+-------------------|
| 80486-40 | open | open | closed | pins 2 & 3 closed |
|-------------+--------+--------+--------+-------------------|
| 80486-33 | closed | open | open | pins 2 & 3 closed |
| | | | | |
| 80486DX2-66 | | | | |
|-------------+--------+--------+--------+-------------------|
| 80486-25 | closed | open | closed | pins 2 & 3 closed |
| | | | | |
| 80486DX2-50 | | | | |
|-------------+--------+--------+--------+-------------------|
| 80386-40 | open | open | closed | pins 1 & 2 closed |
| | | | | |
| CX486DLC-40 | | | | |
|-------------+--------+--------+--------+-------------------|
| 80386-33 | closed | open | open | pins 1 & 2 closed |
| | | | | |
| CX486DLC-33 | | | | |
|-------------+--------+--------+--------+-------------------|
| 80386-25 | closed | open | closed | pins 1 & 2 closed |
|-------------+--------+--------+--------+-------------------|
| 80386-20 | open | closed | open | pins 1 & 2 closed |
| | | | | |
| 80486-20 | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O CONTROLLER CONFIGURATION |
|------------------------------------------------------------|
| Device | Jumper | Enabled | Disabled |
|------------------------------+--------+---------+----------|
| Game port (CN6) | JP24 | open | closed |
|------------------------------+--------+---------+----------|
| IDE interface (CN4) | JP25 | open | closed |
|------------------------------+--------+---------+----------|
| Parallel port (CN5) | JP26 | open | closed |
|------------------------------+--------+---------+----------|
| Floppy drive interface (CN1) | JP27 | open | closed |
|------------------------------+--------+---------+----------|
| COM1 (CN2) | JP28 | open | closed |
|------------------------------+--------+---------+----------|
| COM2 (CN3) | JP29 | open | closed |
+------------------------------------------------------------+