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# RECTRON ELECTRONIC ENTERPRISES, INC.
386DX-33 PEAK DM
Processor 80386DX
Processor Speed 25/33/40MHz
Chip Set C & T Peak DM
Max. Onboard DRAM 32MB
Cache 64/128/256KB
BIOS AMI
Dimensions 330mm x 215mm
I/O Options None
NPU Options 80387/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Turbo LED | D4 | Turbo switch | J50 |
|-------------------+----------+------------------+----------|
| Speaker | J18 | Reset switch | J51 |
|-------------------+----------+------------------+----------|
| Power LED & | J19 | External battery | JP2 |
| keylock | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|----------------------------------+--------+----------------|
| » | Monitor type set color | J23 | Closed |
|---+------------------------------+--------+----------------|
| | Monitor type set 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 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Tag |
|------------+---------------+---------------+---------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (2) 16K x 4 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (2) 64K x 4 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (2) 64K x 4 |
|------------------------------------------------------------|
| Note:Use tag chips without output enable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
|Size| J26 | J28 | J29 | J33 | J35 | J36 | J37 | J38 |J39 |
|----+-----+------+------+------+-----+-----+-----+-----+----|
|64K |1 & 2| Open |Closed|Closed|Open |Open |2 & 3|1 & 2|1 & |
| | | | | | | | | | 2 |
|----+-----+------+------+------+-----+-----+-----+-----+----|
|128K|2 & 3| Open |Closed| Open |Open |1 & 2|1 & 2|2 & 3|2 & |
| | | | | | | | | | 3 |
|----+-----+------+------+------+-----+-----+-----+-----+----|
|256K|2 & 3|Closed| Open | Open |1 & 2|1 & 2|1 & 2|2 & 3|1 & |
| | | | | | | | | | 2 |
|------------------------------------------------------------|
|Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+