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# MAGITRONICS
386DX/486SX/486DX/486DX2
Processor 80386DX/80486SX/80487SX/80486DX/80486DX2
Processor Speed 25/33/40/50(internal)/50/66(internal)MHz
Chip Set Unidentified
Max. Onboard DRAM 32MB
Cache 64/128/256KB
BIOS AMI
Dimensions 254mm x 220mm
I/O Options None
NPU Options 80387DX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+----------+---------------------+----------|
| Reset switch | J1 | Speaker | J4 |
|----------------+----------+---------------------+----------|
| Turbo switch | J2 | Power LED & keylock | J5 |
|----------------+----------+---------------------+----------|
| Turbo LED | J3 | External battery | J7 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+--------+--------------|
| » | CMOS memory normal operation | P1 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | CMOS memory clear | P1 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | Monitor type select color | P2 | Closed |
|---+--------------------------------+--------+--------------|
| | Monitor type select monochrome | P2 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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) 1M x 9 |
|------------------+--------------------+--------------------|
| 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) 256K x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 17MB | (4) 4M x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 20MB | (4) 4M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 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 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | P3 | P5 | P7 | P9 |
|---------+-------------------+----------+---------+---------|
| 64KB | pins 2 & 3 closed | Open | Open | Open |
|---------+-------------------+----------+---------+---------|
| 128KB | pins 1 & 2 closed | Open | Closed | Closed |
|---------+-------------------+----------+---------+---------|
| 256KB | pins 2 & 3 closed | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | P4 | P25 | P33 | P100 |
|---------+---------------+------------+--------+------------|
| 80386 | pins 1 & 2 | pins 2 & 3 | Open | pins 2 & 3 |
| (PQFP) | closed | closed | | closed |
|---------+---------------+------------+--------+------------|
| 80486 | pins 2 & 3 | pins 1 & 2 | Closed | pins 1 & 2 |
| (PQFP) | closed | closed | | closed |
|---------+---------------+------------+--------+------------|
| 80486 | pins 2 & 3 | pins 1 & 2 | Closed | pins 2 & 3 |
| (PGA) | closed | closed | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | P12 | P13 | P14 |
|-----------+-------------------+-------------------+--------|
| 80486SX | pins 2 & 3 closed | Open | Open |
|-----------+-------------------+-------------------+--------|
| 80487SX | pins 1 & 2 closed | pins 2 & 3 closed | Closed |
|-----------+-------------------+-------------------+--------|
| 80486DX | pins 1 & 2 closed | pins 1 & 2 closed | Closed |
|-----------+-------------------+-------------------+--------|
| 80486DX2 | pins 1 & 2 closed | pins 1 & 2 closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | P30 | P31 | P32 | P97 |
|------------+-----------+-----------+-----------+-----------|
| 25MHz | Closed | Open | Closed | Open |
|------------+-----------+-----------+-----------+-----------|
| 33MHz | Closed | Closed | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 40MHz | Open | Open | Closed | Closed |
|------------+-----------+-----------+-----------+-----------|
| 50MHz | Closed | Open | Closed | Closed |
|------------+-----------+-----------+-----------+-----------|
| 50iMHz | Closed | Open | Closed | Open |
|------------+-----------+-----------+-----------+-----------|
| 66iMHz | Closed | Closed | Open | Open |
+------------------------------------------------------------+