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# MICRONICS COMPUTERS, INC.
80386SX BOARD
Processor 80386SX
Processor Speed 25MHz
Chip Set Micronics
Max. Onboard DRAM 16MB
Cache None
BIOS Phoenix
Dimensions 330mm x 218mm
I/O Options None
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------+--------------+--------------+-----------------|
| Keylock | JP13/pins 1 | Turbo switch | JP13/pins 15, |
| connector | & 2 | | 16 & 17 |
|------------+--------------+--------------+-----------------|
| Power LED | JP13/pins 3, | Reset switch | JP13/pins 19 & |
| | 4 & 5 | | 20 |
|------------+--------------+--------------+-----------------|
| Speaker | JP13/pins 7, | External | J2/pins 1(pos) |
| | 8, 9 & 10 | Battery | & 4(neg) |
|------------+--------------+--------------+-----------------|
| Turbo LED | JP13/pins 12 | | |
| | & 13 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+--------+--------------|
| » | Internal battery select | J2 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | External battery select | J2 | pins 2 & 3 |
| | | | open |
|---+--------------------------------+--------+--------------|
| » | Monitor type select color | JP2 | Closed |
|---+--------------------------------+--------+--------------|
| | Monitor type select monochrome | JP2 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 512KB | (2) 256KB x | NONE | NONE | NONE |
| | 9 | | | |
|-------+-------------+------------+------------+------------|
| 1MB | (2) 256KB x | (2) 256KB | NONE | NONE |
| | 9 | x 9 | | |
|-------+-------------+------------+------------+------------|
| 1.5MB | (2) 256KB x | (2) 256KB | (2) 256KB | NONE |
| | 9 | x 9 | x 9 | |
|-------+-------------+------------+------------+------------|
| 2MB | (2) 256KB x | (2) 256KB | (2) 256KB | (2) 256KB |
| | 9 | x 9 | x 9 | x 9 |
|-------+-------------+------------+------------+------------|
| 2.5MB | (2) 256KB x | (2) 1MB x | NONE | NONE |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 3MB | (2) 256KB x | (2) 256KB | (2) 1MB x | NONE |
| | 9 | x 9 | 9 | |
|-------+-------------+------------+------------+------------|
| 4.MB | (2) 1MB x 9 | (2) 1MB x | NONE | NONE |
| | | 9 | | |
|-------+-------------+------------+------------+------------|
| 4.5MB | (2) 256KB x | (2) 1MB x | (2) 1MB x | NONE |
| | 9 | 9 | 9 | |
|-------+-------------+------------+------------+------------|
| 5MB | (2) 256KB x | (2) 1MB x | (2) 256KB | (2) 1MB x |
| | 9 | 9 | x 9 | 9 |
|-------+-------------+------------+------------+------------|
| 6MB | (2) 1MB x 9 | (2) 1MB x | (2) 1MB x | NONE |
| | | 9 | 9 | |
|-------+-------------+------------+------------+------------|
| 8MB | (2) 1MB x 9 | (2) 1MB x | (2) 1MB x | (2) 1MB x |
| | | 9 | 9 | 9 |
|-------+-------------+------------+------------+------------|
| 8MB | (2) 4MB x 9 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 8.5MB | (2) 256KB x | (2) 4MB x | NONE | NONE |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 9MB | (2) 256KB x | (2) 256KB | (2) 4MB x | NONE |
| | 9 | x 9 | 9 | |
|-------+-------------+------------+------------+------------|
| 10MB | (2) 1MB x 9 | (2) 4MB x | NONE | NONE |
| | | 9 | | |
|-------+-------------+------------+------------+------------|
| 12MB | (2) 1MB x 9 | (2) 1MB x | (2) 4MB x | NONE |
| | | 9 | 9 | |
|-------+-------------+------------+------------+------------|
| 16MB | (2) 4MB x 9 | (2) 4MB x | NONE | NONE |
| | | 9 | | |
+------------------------------------------------------------+