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# BIOSTAR MICROTECH INTERNATIONAL CORPORATION
MB-1333C-CH/1340C-CH (B)
Processor 80386DX
Processor Speed 33/40MHz
Chip Set C & T
Max. Onboard DRAM 32MB
Cache 256KB
BIOS C & T
Dimensions 330mm x 218mm
I/O Options None
NPU Options 80387/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | JP2 | Power LED & | J19 |
| | | keylock | |
|------------------+----------+-------------------+----------|
| Turbo LED | D4 | Turbo switch | J50 |
|------------------+----------+-------------------+----------|
| Speaker | J18 | Reset switch | J51 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | J21 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Fast gate A20 enabled | J22 | Closed |
|---+----------------------------------+--------+------------|
| | Fast gate A20 disabled | J22 | Open |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | J23 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | J23 | Open |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | J42 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | J42 | 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) 256K x 9 | (4) 1 M x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 17MB | (4) 4M x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 20MB | (4) 4M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J48 |
|----------------------------+-------------------------------|
| 1MB | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 2MB | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 4MB | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 5MB | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 8MB | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 16MB | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 17MB | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 20MB | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 32MB | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG | TAG location |
|-----------+---------------+---------------+----------------|
| 64KB | (8) 16K x 4 | (2) 16K x 4 | U14 & U15 |
|-----------+---------------+---------------+----------------|
| 256KB | (8) 64K x 4 | (3) 64K x 4 | U8 & U14 & U15 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J25 | J26 | J27 | J28 | J29 | J33 | J34 |
|-------+--------+-------+-------+-------+-------+-----+-----|
| 64KB | Closed |Closed |Closed |Closed |Closed |1 & 2|1 & 2|
|-------+--------+-------+-------+-------+-------+-----+-----|
| 256KB | Open | Open | Open | Open | Open |2 & 3|2 & 3|
|------------------------------------------------------------|
|Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| POWER GOOD CONFIGURATION |
|------------------------------------------------------------|
| Setting | J31 | J32 |
|--------------------+-------------------+-------------------|
| Signal detect from | pins 2 & 3 closed | pins 2 & 3 closed |
| power supply | | |
|--------------------+-------------------+-------------------|
| Signal detect from | pins 1 & 2 closed | pins 1 & 2 closed |
| board | | |
+------------------------------------------------------------+