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# MAGITRONICS
A-B341H
Processor 80386DX
Processor Speed 40MHz
Chip Set UMC
Max. Onboard DRAM 32MB
SRAM Cache 32/64/128/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options None
NPU Options 80387/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location | Function | Location |
|------------------+----------+-------------------+----------|
| External battery | J1 | Reset switch | J4 |
|------------------+----------+-------------------+----------|
| Turbo LED | J2 | Speaker | J5 |
|------------------+----------+-------------------+----------|
| Turbo switch | J3 | Power LED & | J6 |
| | | keylock | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|-------------------------------------+-----------+----------|
| » | Battery select internal | W1 | closed |
|---+---------------------------------+-----------+----------|
| | Battery select external | W1 | open |
|---+---------------------------------+-----------+----------|
| » | Monitor type select color | W2 | closed |
|---+---------------------------------+-----------+----------|
| | Monitor type select monochrome | W2 | open |
|---+---------------------------------+-----------+----------|
| » | NPU disabled | W4 | open |
|---+---------------------------------+-----------+----------|
| | NPU enabled | W4 | closed |
|---+---------------------------------+-----------+----------|
| » | CMOS memory normal operation | W20 | open |
|---+---------------------------------+-----------+----------|
| | CMOS memory clear | W20 | closed |
|------------------------------------------------------------|
| Note:Location of jumper W2 is unknown. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Cache | Location | TAG |
|------------+---------------+---------------+---------------|
| 32KB | (4) 8K x 8 | Bank 0 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 64KB | (8) 8K x 8 | Banks 0 & 1 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | Bank 0 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (8) 32K x 8 | Banks 0 & 1 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | W8 | W9 | W10 | W11 | W12 | W13 | W14 | W15 |
|-------+-----+-----+------+------+------+------+-----+------|
| 32KB | 1 & | 1 & | 1 & | 1 & | 2 & | 1 & | 1 & | open |
| | 2 | 2 | 2 | 2 | 3 | 2 | 2 | |
|-------+-----+-----+------+------+------+------+-----+------|
| 64KB | 2 & | 1 & | 1 & | 2 & | 1 & | 1 & | 1 & | open |
| | 3 | 2 | 2 | 3 | 2 | 2 | 2 | |
|-------+-----+-----+------+------+------+------+-----+------|
| 128KB | 2 & | 2 & | 2 & | 2 & | 2 & | 1 & | 1 & | 1 & |
| | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 |
|-------+-----+-----+------+------+------+------+-----+------|
| 256KB | 2 & | 2 & | 2 & | 2 & | 1 & | 2 & | 2 & | 2 & |
| | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 3 |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+