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# MAGUS DATA TECHNOLOGY, INC.
B386 EDITION 2.1
Processor 80386SX
Processor Speed 20/25MHz
Chip Set C & T
Max. Onboard DRAM 16MB (on external memory cards)
Cache None
BIOS Phoenix
Dimensions 330mm x 218mm
I/O Options 32-bit external memory cards (2)
NPU Options 80287(location unidentified)/80387SX/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | J21 | Power LED & | J27 |
| | | keylock | |
|------------------+----------+-------------------+----------|
| Reset switch | J22 | Auxiliary | J21B |
| | | keyboard | |
| | | connector | |
|------------------+----------+-------------------+----------|
| Turbo LED | J23 | 32-bit external | SL1 & |
| | | memory cards | SL2 |
|------------------+----------+-------------------+----------|
| Speaker | J26 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Monitor type select CGA | J20 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select EGA/VGA | J20 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Power good signal detect from | J21A | pins 2 & 3 |
| | power supply | | closed |
|---+----------------------------------+--------+------------|
| | Power good signal detect from | J21A | pins 1 & 2 |
| | board | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | 1MB | NONE |
|------------------+--------------------+--------------------|
| 2MB | 2MB | NONE |
|------------------+--------------------+--------------------|
| 4MB | 2MB | 2MB |
|------------------+--------------------+--------------------|
| 4MB | 4MB | NONE |
|------------------+--------------------+--------------------|
| 8MB | 8MB | NONE |
|------------------+--------------------+--------------------|
| 10MB | 2MB | 8MB |
|------------------+--------------------+--------------------|
| 16MB | 8MB | 8MB |
|------------------------------------------------------------|
| Note: Bank 0 is located in slot SL1 & Bank 1 is |
| located in slot SL2. Memory boards must be Magus and |
| are available in the following sizes: 1MB, 2MB, 4MB & |
| 8MB. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| NPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | J25 | JMP1 |
|--------------------+--------------------+------------------|
| None | Open | Open |
|--------------------+--------------------+------------------|
| 80287 | pins 1 & 2 closed | Open |
|--------------------+--------------------+------------------|
| 80387 | pins 2 & 3 closed | Closed |
|--------------------+--------------------+------------------|
| 3167 | Open | Open |
|--------------------+--------------------+------------------|
| 80387 & 3167 | pins 2 & 3 closed | Closed |
+------------------------------------------------------------+