TEXT View Source
# MICRONICS COMPUTERS, INC.
JX30 VL-BUS
Processor 80486SX/80486DX/ODP486SX/80486DX2/Pentium
Overdrive
Processor 25/33/50(internal)/66(internal)MHz
Speed
Chip Set Micronics
Max. Onboard 64MB
DRAM
Cache 64/128/256KB
BIOS Phoenix
Dimensions 330mm x 218mm
I/O Options 32-bit VESA local bus slots (2), floppy drive
interface,
IDE interface, parallel port, serial ports (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+-----------------+----------|
| IDE interface | CN1 | Power LED & | J34 |
| | | keylock | |
|--------------------+----------+-----------------+----------|
| Floppy drive | CN2 | 32-bit VESA | S1 |
| interface | | Local bus slot | |
|--------------------+----------+-----------------+----------|
| External battery | J8 | 32-bit VESA | S2 |
| | | Local bus slot | |
|--------------------+----------+-----------------+----------|
| External keyboard | J10 | Hard drive LED | W11 |
| connector | | | |
|--------------------+----------+-----------------+----------|
| Serial port (COM1) | J12 | Reset switch | W12 |
|--------------------+----------+-----------------+----------|
| Parallel port | J15 | Turbo LED | W13 |
|--------------------+----------+-----------------+----------|
| Serial port (COM2) | J16 | Turbo switch | W14 |
|--------------------+----------+-----------------+----------|
| Speaker | J33 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | Factory configured - do | SW1/switch 2 | On |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW1/switch 3 | Off |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW1/switch 4 | Off |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Parallel port | W5 | pins 1 & 2 |
| | unidirectional (for | | closed |
| | printer) | | |
|---+---------------------------+---------------+------------|
| | Parallel port | W5 | pins 2 & 3 |
| | bi-directional | | closed |
|---+---------------------------+---------------+------------|
| » | Monitor type select color | W6 | Closed |
|---+---------------------------+---------------+------------|
| | Monitor type select | W6 | Open |
| | monochrome | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | W7 | Open |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | CMOS memory normal | W8 | pins 2 & 3 |
| | operation | | closed |
|---+---------------------------+---------------+------------|
| | CMOS memory clear | W8 | pins 1 & 2 |
| | | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | W20 | pins 1 & 2 |
| | not alter | | closed |
|---+---------------------------+---------------+------------|
| | DALLAS Real Time Clock | W31 | Closed |
| | memory clear | | |
|---+---------------------------+---------------+------------|
| | Real Time Clock normal | W31 | Open |
| | operation | | |
|---+---------------------------+---------------+------------|
| » | Local bus Bus-Mastering | W40 | Open |
| | peripherals enabled | | |
|---+---------------------------+---------------+------------|
| | Local bus Bus-Mastering | W40 | Closed |
| | peripherals disabled | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REAL TIME CLOCK CONFIGURATION |
|------------------------------------------------------------|
| Real Time Clock | W1 |
|-------------------------------+----------------------------|
| DALLAS Real Time Clock | Closed |
|-------------------------------+----------------------------|
| MOTOROLA 146818 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (1) 256K x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 256K x | (1) 256K x | (1) 1M x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 256K x | (1) 256K x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 256K x | (1) 256K x | (1) 4M x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|----------+----------------+----------------+---------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
|----------+----------------+----------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
|----------+----------------+----------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | W64 | W65 | W66 | W67 | W68 |
|-------+------------+----------+----------+--------+--------|
| 64KB | pins 1 & 2 | pins 1 & | pins 2 & | pins 2 | pins 1 |
| | | 2 | 3 | & 3 | & 2 |
|-------+------------+----------+----------+--------+--------|
| 128KB | pins 2 & 3 | pins 1 & | pins 1 & | pins 1 | pins 2 |
| | | 2 | 2 | & 2 | & 3 |
|-------+------------+----------+----------+--------+--------|
| 256KB | pins 2 & 3 | pins 2 & | pins 2 & | pins 2 | pins 2 |
| | | 3 | 3 | & 3 | & 3 |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | W70 | W71 |
|--------------------+-------------------+-------------------|
| 80486SX | pins 1 & 2 closed | N/A |
|--------------------+-------------------+-------------------|
| 80486DX | pins 2 & 3 closed | pins 2 & 3 closed |
|--------------------+-------------------+-------------------|
| ODP486SX | N/A | pins 1 & 2 closed |
|--------------------+-------------------+-------------------|
| 80486DX2 | pins 2 & 3 closed | pins 2 & 3 closed |
|--------------------+-------------------+-------------------|
| Pentium Overdrive | pins 2 & 3 closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | SW1/switch 1 |
|----------------------------+-------------------------------|
| 25MHz | On |
|----------------------------+-------------------------------|
| 33MHz | Off |
|----------------------------+-------------------------------|
| 50i MHz | On |
|----------------------------+-------------------------------|
| 66i MHz | Off |
+------------------------------------------------------------+