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# MICRONICS COMPUTERS, INC.
80486 ASIC EISA
Processor 80486DX/80486DX2
Processor Speed 25/33/50(internal)MHz
Chip Set Micronics
Max. Onboard DRAM 64MB
Cache 64/256KB
BIOS Phoenix
Dimensions 355mm x 302mm
I/O Options 32-bit external memory card slot
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| External keyboard | J1 | Speaker | J22 |
|-------------------+----------+------------------+----------|
| Parallel port | J4 | Power LED & | J23 |
| | | keylock | |
|-------------------+----------+------------------+----------|
| Serial port COM1 | J5 | Reset switch | W5 |
|-------------------+----------+------------------+----------|
| Serial port COM2 | J15 | Turbo switch | W6 |
|-------------------+----------+------------------+----------|
| Floppy drive | J17 | Turbo LED | W7 |
| interface | | | |
|-------------------+----------+------------------+----------|
| External battery | J18 | Local bus | S1 |
| | | expansion slot | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | Factory configured - do | W8 | pins 1 & 2 |
| | not alter | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | W10 | pins 2 & 3 |
| | not alter | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | W11 | pins 2 & 3 |
| | not alter | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | W12 | pins 1 & 2 |
| | not alter | | closed |
|---+---------------------------+---------------+------------|
| » | Floppy drive interface | W13 | pins 1 & 2 |
| | enabled | | closed |
|---+---------------------------+---------------+------------|
| | Floppy drive interface | W13 | pins 2 & 3 |
| | disabled | | closed |
|---+---------------------------+---------------+------------|
| » | CPU type select | W43 | Open |
| | 80486DX-33 | | |
|---+---------------------------+---------------+------------|
| | CPU type select | W43 | pins 1 & 2 |
| | 80486DX2-50 | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | W45 | pins 1 & 2 |
| | not alter | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW1/6 | On |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW1/7 | Off |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Monitor type select color | SW1/8 | On |
|---+---------------------------+---------------+------------|
| | Monitor type select | SW1/8 | Off |
| | monochrome | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (4) 256K x | NONE | NONE | NONE |
| | 9 | | | |
|------+-------------+-------------+------------+------------|
| 2MB | (4) 256K x | (4) 256K x | NONE | NONE |
| | 9 | 9 | | |
|------+-------------+-------------+------------+------------|
| 3MB | (4) 256K x | (4) 256K x | (4) 256K x | NONE |
| | 9 | 9 | 9 | |
|------+-------------+-------------+------------+------------|
| 4MB | (4) 256K x | (4) 256K x | (4) 256K x | (4) 256K x |
| | 9 | 9 | 9 | 9 |
|------+-------------+-------------+------------+------------|
| 4MB | (4) 1M x 9 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 5MB | (4) 256K x | (4) 1 M x 9 | NONE | NONE |
| | 9 | | | |
|------+-------------+-------------+------------+------------|
| 6MB | (4) 256K x | (4) 256K x | (4) 1M x 9 | NONE |
| | 9 | 9 | | |
|------+-------------+-------------+------------+------------|
| 7MB | (4) 256K x | (4) 256K x | (4) 256K x | (4) 1M x 9 |
| | 9 | 9 | 9 | |
|------+-------------+-------------+------------+------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 9MB | (4) 256K x | (4) 1M x 9 | (4) 1M x 9 | NONE |
| | 9 | | | |
|------+-------------+-------------+------------+------------|
| 10MB | (4) 256K x | (4) 256K x | (4) 1M x 9 | (4) 1M x 9 |
| | 9 | 9 | | |
|------+-------------+-------------+------------+------------|
| 12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
|------+-------------+-------------+------------+------------|
| 13MB | (4) 256K x | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
| | 9 | | | |
|------+-------------+-------------+------------+------------|
| 16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
|------+-------------+-------------+------------+------------|
| 16MB | (4) 4M x 9 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 24MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | NONE |
|------+-------------+-------------+------------+------------|
| 28MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|--------+------------+------------+------------+------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
|--------+------------+------------+------------+------------|
| 36MB | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
|--------+------------+------------+------------+------------|
| 40MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 |
|--------+------------+------------+------------+------------|
| 48MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
|--------+------------+------------+------------+------------|
| 52MB | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
|--------+------------+------------+------------+------------|
| 64MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM SWITCH CONFIGURATION |
|------------------------------------------------------------|
| Size | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 |
|----------+---------+---------+---------+---------+---------|
| 1MB | On | On | On | On | On |
|----------+---------+---------+---------+---------+---------|
| 2MB | Off | On | On | On | On |
|----------+---------+---------+---------+---------+---------|
| 3MB | On | Off | On | On | On |
|----------+---------+---------+---------+---------+---------|
| 4MB 1 | Off | Off | On | On | On |
|----------+---------+---------+---------+---------+---------|
| 4MB 2 | On | On | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 5MB | On | On | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| 6MB | On | Off | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| 7MB | Off | On | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| 8MB | Off | On | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 9MB | On | Off | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| 10MB | Off | Off | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| 12MB | On | Off | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 13MB | Off | Off | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| 16MB 1 | Off | Off | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 16MB 3 | On | On | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| 20MB | On | On | Off | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 24MB | On | Off | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 28MB | Off | On | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 32MB | Off | On | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| 36MB | On | Off | Off | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 40MB | Off | Off | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 48MB | On | Off | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| 52MB | Off | Off | Off | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 64MB | Off | Off | Off | On | Off |
|------------------------------------------------------------|
| Note 1 :Use this setting when banks are populated with (4) |
| 256K x 9 SIMMs |
| |
| Note 2 :Use this setting when banks are populated with (4) |
| 1M x 9 SIMMs |
| |
| Note 3 :Use this setting when banks are populated with (4) |
| 4M x 9 SIMMs |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 64KB | (8) 8K x 8 |
|----------------------------+-------------------------------|
| 256KB | (8) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | W20 | W21 | W41 | W44 |
|-------+-------------+------------+------------+------------|
| 64KB | pins 2 & 3 | Open | Open | Open |
| | closed | | | |
|-------+-------------+------------+------------+------------|
| 256KB | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT CONFIGURATION |
|------------------------------------------------------------|
| Size | W3 | W4 |
|------------------+--------------------+--------------------|
| LPT1 | pins 1 & 2 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| LPT2 | pins 1 & 2 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| LPT3 | pins 2 & 3 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| Disabled | pins 2 & 3 closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL COM PORT CONFIGURATION |
|------------------------------------------------------------|
| Size | W2 | W9 |
|----------------------------------+------------+------------|
| COM1 (J5) and COM2 (J15) enabled | pins 1 & 2 | pins 1 & 2 |
| | closed | closed |
|----------------------------------+------------+------------|
| COM1 (J5) enabled and COM2 (J15) | pins 1 & 2 | pins 2 & 3 |
| disabled | closed | closed |
|----------------------------------+------------+------------|
| COM1 (J5) disabled and COM2 | pins 2 & 3 | pins 1 & 2 |
| (J15) enabled | closed | closed |
|----------------------------------+------------+------------|
| COM1 (J5) and COM2 (J15) | pins 2 & 3 | pins 2 & 3 |
| disabled | closed | closed |
+------------------------------------------------------------+