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# MICRONICS COMPUTERS, INC.
LPX30WB REV. 3A
Processor 80486SX/CX486DX/80486DX/AM486DXL/CX486DX2/80486DX2/SL80486DX2/80486DX4/Pentium
Overdrive
Processor 25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set Micronics
Max. 128MB
Onboard
DRAM
Cache 128KB
BIOS Phoenix
Dimensions 260mm x 218mm
I/O Riser card slot, floppy drive interface, IDE interface, parallel port, PS/2
Options mouse port, serial ports (2), VGA feature connector, VGA port
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+-----------------+----------|
| VGA feature | CN1 | Turbo switch | J18 |
| connector | | | |
|--------------------+----------+-----------------+----------|
| PS/2 mouse port | J6 | Turbo LED | J19 |
|--------------------+----------+-----------------+----------|
| Serial port 1 | J10 | Power LED & | J20 |
| | | keylock | |
|--------------------+----------+-----------------+----------|
| Serial port 2 | J11 | Reset switch | J21 |
|--------------------+----------+-----------------+----------|
| Parallel port | J12 | Power module | J22 |
| | | connector | |
|--------------------+----------+-----------------+----------|
| IDE interface | J13 | IDE interface | J23 |
| (primary) | | LED | |
|--------------------+----------+-----------------+----------|
| IDE interface | J14 | VGA port | J31 |
| (secondary) | | | |
|--------------------+----------+-----------------+----------|
| Floppy drive | J15 | Riser card slot | SL1 & |
| interface | | | SL2 |
|--------------------+----------+-----------------+----------|
| Speaker | J17 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | J9 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | W1 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | W2 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | W2 | Open |
|---+----------------------------------+--------+------------|
| » | Flash BIOS normal mode | W4 | Open |
|---+----------------------------------+--------+------------|
| | Flash BIOS programing mode | W4 | Closed |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | W5 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | W5 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | VESA IDE controller enabled | W7 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | VESA IDE controller disabled | W7 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | IDE controller enabled | W8 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | IDE controller disabled | W8 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Buzzer enabled | W31 | Closed |
|---+----------------------------------+--------+------------|
| | Buzzer disabled | W31 | Open |
|---+----------------------------------+--------+------------|
| » | On-board VGA IRQ9 disabled | W35 | Open |
|---+----------------------------------+--------+------------|
| | On-board VGA IRQ9 enabled | W35 | Closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | W40 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | W41 | N/A |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 2M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x | (1) 1M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 2M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 24MB | (1) 2M x 36 | (1) 2M x | (1) 2M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 24MB | (1) 2M x 36 | (1) 2M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 8M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 2M x 36 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 4M x 36 | (1) 4M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | (1) 8M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 8M x 36 | (1) 8M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 8M x 36 | (1) 8M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 8M x 36 | (1) 8M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG0 | TAG1 |
|-------+-------------+------------+------------+------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 | NONE |
|-------+-------------+------------+------------+------------|
| 256KB | (4) 32K x 8 | (4) 32K x | (1) 32K x | (1) 32K x |
| | | 8 | 8 | 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | W13 | W14 | W15 | W17 |
|-------+-------------+------------+------------+------------|
| None | Open | Open | Open | Open |
|-------+-------------+------------+------------+------------|
| 128KB | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed | closed |
|-------+-------------+------------+------------+------------|
| 256KB | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | W11 | W12 | W18 | W19 | W20 |
|----------------+------------+-------+------+-------+-------|
| 80486SX | 2 & 3 | Open | Open | 2 & 3 | Open |
|----------------+------------+-------+------+-------+-------|
| CX486DX | 1 & 2, 3 & | 3 & 4 | Open | 2 & 3 | 1 & 2 |
| | 4 | | | | |
|----------------+------------+-------+------+-------+-------|
| 80486DX | 1 & 2, 3 & | 3 & 4 | Open | 2 & 3 | Open |
| | 4 | | | | |
|----------------+------------+-------+------+-------+-------|
| AM486DXL | 1 & 2, 3 & | 3 & 4 | Open | 2 & 3 | Open |
| | 4 | | | | |
|----------------+------------+-------+------+-------+-------|
| CX486DX2 | 1 & 2, 3 & | 3 & 4 | Open | 2 & 3 | 1 & 2 |
| | 4 | | | | |
|----------------+------------+-------+------+-------+-------|
| 80486DX2 | 1 & 2, 3 & | 3 & 4 | Open | 2 & 3 | 2 & 3 |
| | 4 | | | | |
|----------------+------------+-------+------+-------+-------|
| 80486DX2 (WB) | 1 & 2, 3 & | 3 & 4 | Open | 1 & 2 | 2 & 3 |
| | 4 | | | | |
|----------------+------------+-------+------+-------+-------|
| SL80486DX2 | 1 & 2, 3 & | 3 & 4 | Open | 2 & 3 | 2 & 3 |
| | 4 | | | | |
|----------------+------------+-------+------+-------+-------|
| 80486DX4 | 1 & 2, 3 & | 3 & 4 | Open | 2 & 3 | 2 & 3 |
| | 4 | | | | |
|----------------+------------+-------+------+-------+-------|
| Pentium | 1 & 2, 3 & | 3 & 4 | Open | 1 & 2 | 2 & 3 |
| Overdrive | 4 | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | W21 | W22 | W23 | W24 |
|------------+--------+------------+------------+------------|
| 80486SX | Open | Open | pins 1 & 2 | pins 2 & 3 |
| | | | closed | closed |
|------------+--------+------------+------------+------------|
| CX486DX | Open | Open | pins 2 & 3 | pins 1 & 2 |
| | | | closed | closed |
|------------+--------+------------+------------+------------|
| 80486DX | Open | Open | pins 1 & 2 | pins 2 & 3 |
| | | | closed | closed |
|------------+--------+------------+------------+------------|
| AM486DXL | Open | Open | pins 1 & 2 | pins 2 & 3 |
| | | | closed | closed |
|------------+--------+------------+------------+------------|
| CX486DX2 | Open | Open | 2 & 3 | pins 1 & 2 |
| | | | | closed |
|------------+--------+------------+------------+------------|
| 80486DX2 | Open | Open | pins 1 & 2 | pins 2 & 3 |
| | | | closed | closed |
|------------+--------+------------+------------+------------|
| 80486DX2 | Closed | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 |
| (WB) | | closed | closed | closed |
|------------+--------+------------+------------+------------|
| SL80486DX2 | Open | Open | pins 1 & 2 | pins 2 & 3 |
| | | | closed | closed |
|------------+--------+------------+------------+------------|
| 80486DX4 | Open | Open | pins 1 & 2 | pins 2 & 3 |
| | | | closed | closed |
|------------+--------+------------+------------+------------|
| Pentium | Open | Open | pins 1 & 2 | pins 1 & 2 |
| Overdrive | | | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | W25 | W26 | W27 | W28 |
|-------------------+--------+--------+-------+--------------|
| 80486SX | Open | Open | Open | Open |
|-------------------+--------+--------+-------+--------------|
| CX486DX | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
|-------------------+--------+--------+-------+--------------|
| 80486DX | Open | Open | Open | Open |
|-------------------+--------+--------+-------+--------------|
| AM486DXL | Open | Open | Open | Open |
|-------------------+--------+--------+-------+--------------|
| CX486DX2 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
|-------------------+--------+--------+-------+--------------|
| 80486DX2 | Open | Open | Open | Open |
|-------------------+--------+--------+-------+--------------|
| 80486DX2 (WB) | 1 & 2 | 4 & 5 | 1 & 2 | 1 & 2, 3 & 4 |
|-------------------+--------+--------+-------+--------------|
| SL80486DX2 | Open | 4 & 5 | Open | 3 & 4 |
|-------------------+--------+--------+-------+--------------|
| 80486DX4 | Open | 4 & 5 | Open | 3 & 4 |
|-------------------+--------+--------+-------+--------------|
| Pentium Overdrive | 1 & 2 | 1 & 2 | 1 & 2 | 3 & 4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | W9 | W10 |
|--------------------+-------------------+-------------------|
| 25MHz | Open | Open |
|--------------------+-------------------+-------------------|
| 33MHz | Closed | Closed |
|--------------------+-------------------+-------------------|
| 40MHz | Open | Closed |
|--------------------+-------------------+-------------------|
| 50iMHz | Open | Open |
|--------------------+-------------------+-------------------|
| 66iMHz | Closed | Closed |
|--------------------+-------------------+-------------------|
| 75iMHz | Open | Open |
|--------------------+-------------------+-------------------|
| 100iMHz | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| IRQ CONFIGURATION |
|------------------------------------------------------------|
| IRQ | W32 | W33 |
|------------------+--------------------+--------------------|
| IRQ14 | pins 2 & 3 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| IRQ15 | pins 1 & 2 closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VGA CONFIGURATION |
|------------------------------------------------------------|
| VGA | W34 | W39 |
|------------------+--------------------+--------------------|
| Enabled | pins 2 & 3 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| Disabled | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 512MB | (1) 256K x 16 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 1MB | (1) 256K x 16 | (1) 256K x 16 | NONE |
|------------+---------------+---------------+---------------|
| 2MB | (1) 256K x 16 | (1) 256K x 16 | (1) 256K x 16 |
+------------------------------------------------------------+