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# INFORMTECH INTERNATIONAL, INC.
IT-AM33/40-DLC
Processor 80386DX/AMD386DX/CX486DLC
Processor Speed 16/25/33/40MHz
Chip Set Maconics
Max. Onboard DRAM 32MB
Cache None
BIOS AMI
Dimensions 220mm x 170mm
I/O Options None
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| Turbo LED | D5 | Speaker | J5 |
|---------------------+----------+----------------+----------|
| External battery | J3 | Turbo switch | J6 |
|---------------------+----------+----------------+----------|
| Power LED & keylock | J4 | Reset switch | J7 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | MC146818 enabled | JP1 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | DS1287 enabled | JP1 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select monochrome | JP2 | Open |
|---+----------------------------------+--------+------------|
| | Monitor type select color | JP2 | Closed |
|---+----------------------------------+--------+------------|
| » | CPU brand selection INTEL/AMD | JP3 | pins 1 & 2 |
| | 80386DX CPU | | closed |
|---+----------------------------------+--------+------------|
| | CPU brand selection CYRIX 486DLC | JP3 | pins 2 & 3 |
| | CPU | | closed |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP4 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory data clear | JP4 | pins 2 & 3 |
| | | | closed |
|------------------------------------------------------------|
| Note:The exact location of JP3 is unidentified by the |
| manufacturer. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|------------------+--------------------+--------------------|
| 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CLOCK GENERATOR FREQUENCY CONFIGURATION |
|------------------------------------------------------------|
| Clock | CPU Speed | JS1 | JS2 | JS3 |
| Speed | | | | |
|--------+-----------+---------------+-----------+-----------|
| 80MHz | 40MHz | pins 1 & 2 | pins 2 & | pins 2 & |
| | | closed | 3 closed | 3 closed |
|--------+-----------+---------------+-----------+-----------|
| 66MHz | 33MHz | pins 2 & 3 | pins 1 & | pins 2 & |
| | | closed | 2 closed | 3 closed |
|--------+-----------+---------------+-----------+-----------|
| 50MHz | 25MHz | pins 1 & 2 | pins 1 & | pins 2 & |
| | | closed | 2 closed | 3 closed |
|--------+-----------+---------------+-----------+-----------|
| 33MHz | 16MHz | pins 1 & 2 | pins 2 & | pins 1 & |
| | | closed | 3 closed | 2 closed |
+------------------------------------------------------------+