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# MICRONICS COMPUTERS, INC.
386-20
Processor 80386DX
Processor Speed 20MHz
Chip Set Micronics
Max. Onboard DRAM 8MB (on system memory card)
Cache 16KB (on M100C and M400C system memory cards
only)
BIOS Award/Phoenix
Dimensions 355.6mm x 255.4mm
I/O Options 32-bit system memory card slot
NPU Options 80387/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------------+----------+--------------+----------|
| External battery | J1 | Speaker | J22 |
|-----------------------+----------+--------------+----------|
| 32-bit system memory | J11 | Turbo LED | W7 |
| card power | | | |
|-----------------------+----------+--------------+----------|
| 32-bit system memory | J20 | Reset switch | W9 |
| card | | | |
|-----------------------+----------+--------------+----------|
| Power LED & keylock | J21 | | |
|------------------------------------------------------------|
| Note:The system memory card is inserted into both J11 & |
| J20. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | Factory configured - do | SW1/1 | On |
| | not alter | | |
|---+---------------------------+---------------+------------|
| | NPU enabled | SW1/2 | On |
|---+---------------------------+---------------+------------|
| | NPU disabled | SW1/2 | Off |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW1/3 | Off |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Video BIOS shadowing | SW1/4 | On |
| | enabled | | |
|---+---------------------------+---------------+------------|
| | Video BIOS shadowing | SW1/4 | Off |
| | disabled | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW1/5 | Off |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Monitor type select color | SW1/6 | On |
|---+---------------------------+---------------+------------|
| | Monitor type select | SW1/6 | Off |
| | monochrome | | |
|---+---------------------------+---------------+------------|
| | Cache enabled | SW1/7 | On |
|---+---------------------------+---------------+------------|
| | Cache disabled | SW1/7 | Off |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW1/8 | Off |
| | not alter | | |
|---+---------------------------+---------------+------------|
| | BIOS type select 27128 | W1 | pins 1 & 2 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | BIOS type select 27256 | W1 | pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | NPU mode select | W4 | pins 2 & 3 |
| | synchronous with CPU | | closed |
| | | W6 | |
| | | | open |
|---+---------------------------+---------------+------------|
| | NPU mode select | W4 | pins 1 & 2 |
| | asynchronous with CPU | | closed |
| | | W6 | |
| | | | closed |
|------------------------------------------------------------|
| Note:Cache configuration applies to main memory boards |
| M100C and M400C only. |
+------------------------------------------------------------+
SYSTEM MEMORY CARD MODEL M100
IMG IMG 2
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location |
|-----------------------------------------+------------------|
| 32-bit piggy back memory card | S1 & S2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Jumper W1 |
|------+-------------+-------------+-------------------------|
| 1MB | (36) 256K x | NONE | pins 2 & 3, 4 & 5, 7 & |
| | 1 | | 8 closed |
|------+-------------+-------------+-------------------------|
| 2MB | (36) 256K x | (36) 256K x | pins 1 & 2, 4 & 5, 7 & |
| | 1 | 1 | 8 closed |
+------------------------------------------------------------+
IMG IMG 3
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location |
|-----------------------------------------+------------------|
| 32-bit piggy back memory card | S1 & S2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Jumper W1 |
|------+-------------+-------------+-------------------------|
| 4MB | (36) 1M x 1 | NONE | pins 1 & 2, 3 & 4 |
| | | | closed |
|------+-------------+-------------+-------------------------|
| 8MB | (36) 1M x 1 | (36) 1M x 1 | pins 3 & 4 closed |
+------------------------------------------------------------+
SYSTEM MEMORY CARD MODEL M300
IMG IMG 4
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location |
|-----------------------------------------+------------------|
| 32-bit piggy back memory card | S1 & S2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank | Parity | Bank | Parity | Bank 2 | SW1 |
| | 0 | (P-0) | 1 | (P-1) | | |
|------+-------+--------+-------+--------+--------+----------|
| 1MB | (8) | (4) | NONE | NONE | NONE | switches |
| | 44256 | 4464 | | | | 5, 6, & |
| | | | | | | 8 closed |
|------+-------+--------+-------+--------+--------+----------|
| 2MB | (8) | (4) | (8) | (4) | NONE | switches |
| | 44256 | 4464 | 44256 | 4464 | | 3, 5, 6, |
| | | | | | | & 8 |
| | | | | | | closed |
|------+-------+--------+-------+--------+--------+----------|
| 6MB | (8) | (4) | (8) | (4) | (36) | switches |
| | 44256 | 4464 | 44256 | 4464 | 411000 | 2, 3, 5, |
| | | | | | | 6, & 8 |
| | | | | | | closed |
+------------------------------------------------------------+
IMG IMG 5
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location |
|-----------------------------------------+------------------|
| 32-bit piggy back memory card | S1 & S2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Jumper W1 | Jumper W3 |
|-------+-----------+-----------+---------------+------------|
| 1MB | (36) 256K | NONE | pins 1 & 2 | closed |
| | x 1 | | closed | |
|-------+-----------+-----------+---------------+------------|
| 2MB | (36) 256K | (36) 256K | pins 2 & 3 | closed |
| | x 1 | x 1 | closed | |
|------------------------------------------------------------|
| Note:Jumper W3 enables cache controller chip. Disabling |
| this jumper will decrease system speed. |
+------------------------------------------------------------+
SYSTEM MEMORY CARD MODEL M400C
IMG IMG 6
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Jumper W1 | Jumper W3 |
|-------+-----------+-----------+---------------+------------|
| 4MB | (36) 1M x | NONE | pins 1 & 2 | closed |
| | 1 | | closed | |
|-------+-----------+-----------+---------------+------------|
| 8MB | (36) 1M x | (36) 1M x | pins 2 & 3 | closed |
| | 1 | 1 | closed | |
|------------------------------------------------------------|
| Note:Jumper W3 enables cache controller chip. Disabling |
| this jumper will decrease system speed. |
+------------------------------------------------------------+