TEXT View Source
# MICRONICS COMPUTERS, INC.
LPM30 (REV. 3A)
Processor 80486SX/SL80486SX/CX486DX/AM486DX/80486DX/SL80486DX/CX486DX2/
AM486DX2/80486DX2/SL80486DX2/AM486DX4/80486DX4/ Pentium
Overdrive
Processor 25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set Micronics
Max. 128MB
Onboard
DRAM
Cache 128/256KB
BIOS Phoenix
Dimensions 330mm x 218mm
I/O Riser card slot, floppy drive interface, game port, IDE
Options interfaces (2), parallel port, PS/2 mouse port, serial ports
(2), VGA feature connector, VGA port, LAN connector, modem port,
audio connector, microphone input, line level input, line level
output, speaker port
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+-----------------+----------|
| Modem connector | CN1 | Turbo switch | J23 |
|--------------------+----------+-----------------+----------|
| Parallel port | CN2 | Reset switch | J24 |
|--------------------+----------+-----------------+----------|
| LAN connector | CN3 | IDE interface | J36 |
| | | LED | |
|--------------------+----------+-----------------+----------|
| Floppy drive | CN4 | PS/2 mouse port | S1 |
| interface | | | |
|--------------------+----------+-----------------+----------|
| IDE interface | CN5 | Serial port 1 | S2 |
| (secondary) | | | |
|--------------------+----------+-----------------+----------|
| IDE interface | CN6 | Game port | S3 |
| (primary) | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECTIONS (CON’T) |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Serial port 2 | CN7 | Microphone input | S4 |
|------------------+----------+-------------------+----------|
| Audio connector | CN8 | Line level input | S5 |
|------------------+----------+-------------------+----------|
| VGA Feature | CN9 | Line level output | S6 |
| connector | | | |
|------------------+----------+-------------------+----------|
| Power LED & | J19 | Speaker port | S7 |
| keylock | | | |
|------------------+----------+-------------------+----------|
| Speaker | J20 | VGA port | S8 |
| connector | | | |
|------------------+----------+-------------------+----------|
| Power module | J21 | Riser card slot | SL1 & |
| connector | | | SL2 |
|------------------+----------+-------------------+----------|
| Turbo LED | J22 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+--------+--------------|
| » | Monitor type select color | W1 | Closed |
|---+--------------------------------+--------+--------------|
| | Monitor type select monochrome | W1 | Open |
|---+--------------------------------+--------+--------------|
| » | Game port enabled | W2 | Closed |
|---+--------------------------------+--------+--------------|
| | Game port disabled | W2 | Open |
|---+--------------------------------+--------+--------------|
| » | On-board sound address select | W3 | pins 1 & 2 |
| | 240h | | closed |
|---+--------------------------------+--------+--------------|
| | On-board sound address select | W3 | pins 2 & 3 |
| | 220h | | closed |
|---+--------------------------------+--------+--------------|
| » | On-board sound enabled | W4 | Open |
|---+--------------------------------+--------+--------------|
| | On-board sound disabled | W4 | Closed |
|---+--------------------------------+--------+--------------|
| » | IRQ select IRQ5 | W5 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | IRQ select IRQ7 | W5 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | On-board sound IRQ select IRQ5 | W7 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | On-board sound IRQ select IRQ9 | W7 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | On-board I/O enabled | W11 | Open |
|---+--------------------------------+--------+--------------|
| | On-board I/O disabled | W11 | Closed |
|---+--------------------------------+--------+--------------|
| » | Factory configured - do not | W13 | pins 1 & 2 |
| | alter | | closed |
|---+--------------------------------+--------+--------------|
| » | On-board VGA enabled | W14 | Open |
|---+--------------------------------+--------+--------------|
| | On-board VGA disabled | W14 | Closed |
|---+--------------------------------+--------+--------------|
| » | RAMDAC enabled | W15 | Open |
|---+--------------------------------+--------+--------------|
| | RAMDAC disabled/feature | W15 | Closed |
| | enabled | | |
|---+--------------------------------+--------+--------------|
| » | Factory configured - do not | W17 | Open |
| | alter | | |
|---+--------------------------------+--------+--------------|
| » | Flash BIOS normal mode | W18 | Open |
|---+--------------------------------+--------+--------------|
| | Flash BIOS programing mode | W18 | Closed |
|---+--------------------------------+--------+--------------|
| » | Factory configured - do not | W19 | pins 1 & 2, |
| | alter | | 3 & 4 closed |
|---+--------------------------------+--------+--------------|
| » | Buzzer enabled | W20 | Closed |
|---+--------------------------------+--------+--------------|
| | Buzzer disabled | W20 | Open |
|---+--------------------------------+--------+--------------|
| » | DRAM select standard 5v | W21 | Open |
|---+--------------------------------+--------+--------------|
| | DRAM select micron 12v | W21 | Closed |
|---+--------------------------------+--------+--------------|
| » | CMOS memory normal operation | W25 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | CMOS memory clear | W25 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | IDE interface enabled | W28 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | IDE interface disabled | W28 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | Factory configured - do not | W29 | pins 2 & 3 |
| | alter | | closed |
|------------------------------------------------------------|
| Note: The location of W17 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | TAG |
|------------+---------------+---------------+---------------|
| 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 | W39 | W42 |
|----------------+--------------------------+----------------|
| 128KB | pins 1 & 2, 3 & 4 closed | Open |
|----------------+--------------------------+----------------|
| 256KB | pins 2 & 3, 4 & 5 closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | W22 | W23 | W30 | W31 | W32 |
|-----------------+-------+-------+----------+-------+-------|
| 80486SX | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 |
|-----------------+-------+-------+----------+-------+-------|
| SL80486SX | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
| | | | & 4 | | |
|-----------------+-------+-------+----------+-------+-------|
| CX486DX | 1 & 2 | 2 & 3 | 1 & 2, 3 | 1 & 2 | 2 & 3 |
| | | | & 4 | | |
|-----------------+-------+-------+----------+-------+-------|
| AM486DX | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
| | | | & 4 | | |
|-----------------+-------+-------+----------+-------+-------|
| 80486DX | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
| | | | & 4 | | |
|-----------------+-------+-------+----------+-------+-------|
| SL80486DX | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
| | | | & 4 | | |
|-----------------+-------+-------+----------+-------+-------|
| CX486DX2 | 1 & 2 | 2 & 3 | 1 & 2, 3 | 1 & 2 | 2 & 3 |
| | | | & 4 | | |
|-----------------+-------+-------+----------+-------+-------|
| AM486DX2 | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
| | | | & 4 | | |
|-----------------+-------+-------+----------+-------+-------|
| 80486DX2 | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
| | | | & 4 | | |
|-----------------+-------+-------+----------+-------+-------|
| 80486DX2(WB) | 1 & 2 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 1 & 2 |
| | | | & 4 | | |
|-----------------+-------+-------+----------+-------+-------|
| SL80486DX2 | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
| | | | & 4 | | |
|-----------------+-------+-------+----------+-------+-------|
| AM486DXL4 | 2 & 3 | 1 & 2 | 1 & 2, 3 | Open | 2 & 3 |
| | | | & 4 | | |
|-----------------+-------+-------+----------+-------+-------|
| 80486DX4 | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 2 & 3 |
| | | | & 4 | | |
|-----------------+-------+-------+----------+-------+-------|
| Pentium | 1 & 2 | 1 & 2 | 1 & 2, 3 | 2 & 3 | 1 & 2 |
| Overdrive | | | & 4 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | W33 | W34 | W35 | W38 | W40 |
|----------------+--------+-------+-------+----------+-------|
| 80486SX | Open | Open | Open | 3 & 4 | 4 & 5 |
|----------------+--------+-------+-------+----------+-------|
| SL80486SX | Open | Open | 1 & 2 | 3 & 4 | 4 & 5 |
|----------------+--------+-------+-------+----------+-------|
| CX486DX | Open | 1 & 2 | Open | 3 & 4 | 2 & 3 |
|----------------+--------+-------+-------+----------+-------|
| AM486DX | Open | Open | Open | 1 & 2, 3 | 4 & 5 |
| | | | | & 4 | |
|----------------+--------+-------+-------+----------+-------|
| 80486DX | Open | Open | Open | 3 & 4 | 4 & 5 |
|----------------+--------+-------+-------+----------+-------|
| SL80486DX | Open | Open | 1 & 2 | 3 & 4 | 4 & 5 |
|----------------+--------+-------+-------+----------+-------|
| CX486DX2 | Open | 1 & 2 | Open | 3 & 4 | 2 & 3 |
|----------------+--------+-------+-------+----------+-------|
| AM486DX2 | Open | Open | Open | 1 & 2, 3 | 4 & 5 |
| | | | | & 4 | |
|----------------+--------+-------+-------+----------+-------|
| 80486DX2 | Open | Open | Open | 3 & 4 | 4 & 5 |
|----------------+--------+-------+-------+----------+-------|
| 80486DX2(WB) | Closed | 1 & 2 | 2 & 3 | 3 & 4 | 4 & 5 |
|----------------+--------+-------+-------+----------+-------|
| SL80486DX2 | Open | Open | 1 & 2 | 3 & 4 | 4 & 5 |
|----------------+--------+-------+-------+----------+-------|
| AM486DXL4 | Open | 2 & 3 | Open | 1 & 2, 3 | 4 & 5 |
| | | | | & 4 | |
|----------------+--------+-------+-------+----------+-------|
| 80486DX4 | Open | Open | Open | 3 & 4 | 4 & 5 |
|----------------+--------+-------+-------+----------+-------|
| Pentium | Open | Open | Open | 2 & 3 | 1 & 2 |
| Overdrive | | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | W41 | W43 | W44 | W45 |
|-------------------+--------------+--------+--------+-------|
| 80486SX | 3 & 4 | 1 & 2 | Open | Open |
|-------------------+--------------+--------+--------+-------|
| SL80486SX | 3 & 4 | 1 & 2 | Open | Open |
|-------------------+--------------+--------+--------+-------|
| CX486DX | 2 & 3 | 2 & 3 | Open | Open |
|-------------------+--------------+--------+--------+-------|
| AM486DX | Open | 1 & 2 | Closed | 1 & 2 |
|-------------------+--------------+--------+--------+-------|
| 80486DX | 3 & 4 | 1 & 2 | Open | Open |
|-------------------+--------------+--------+--------+-------|
| SL80486DX | 3 & 4 | 1 & 2 | Open | Open |
|-------------------+--------------+--------+--------+-------|
| CX486DX2 | 2 & 3 | 2 & 3 | Open | Open |
|-------------------+--------------+--------+--------+-------|
| AM486DX2 | Open | 1 & 2 | Closed | 1 & 2 |
|-------------------+--------------+--------+--------+-------|
| 80486DX2 | 3 & 4 | 1 & 2 | Open | Open |
|-------------------+--------------+--------+--------+-------|
| 80486DX2(WB) | 1 & 2, 3 & 4 | 1 & 2 | Open | Open |
|-------------------+--------------+--------+--------+-------|
| SL80486DX2 | 3 & 4 | 1 & 2 | Open | Open |
|-------------------+--------------+--------+--------+-------|
| AM486DXL4 | Open | 1 & 2 | Closed | Open |
|-------------------+--------------+--------+--------+-------|
| 80486DX4 | 3 & 4 | 1 & 2 | Open | Open |
|-------------------+--------------+--------+--------+-------|
| Pentium Overdrive | 3 & 4 | 1 & 2 | Open | Open |
|------------------------------------------------------------|
| Note: Pins designated should be in closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | W26 | W27 |
|--------------------+-------------------+-------------------|
| 25MHz | Open | Open |
|--------------------+-------------------+-------------------|
| 33MHz | Open | Closed |
|--------------------+-------------------+-------------------|
| 40MHz | Closed | Open |
|--------------------+-------------------+-------------------|
| 50iMHz | Open | Open |
|--------------------+-------------------+-------------------|
| 66iMHz | Open | Closed |
|--------------------+-------------------+-------------------|
| 75iMHz | Open | Open |
|--------------------+-------------------+-------------------|
| 100iMHz | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CONFIGURATION |
|------------------------------------------------------------|
| DMA | W6 | W10 |
|------------------+--------------------+--------------------|
| None | Open | Open |
|------------------+--------------------+--------------------|
| DMA1 | pins 1 & 2 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| DMA3 | pins 2 & 3 closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRQ CONFIGURATION |
|------------------------------------------------------------|
| DRQ | W8 | W9 |
|------------------+--------------------+--------------------|
| None | pins 2 & 3 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| DRQ0 | pins 1 & 2 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| DRQ1 | pins 2 & 3 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| DRQ3 | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|--------------+----------------------+----------------------|
| 1MB | (2) 256K x 16 | NONE |
|--------------+----------------------+----------------------|
| 2MB | (2) 256K x 16 | (2) 256K x 16 |
|------------------------------------------------------------|
| Note: Bank 0 is factory installed and is not configurable. |
+------------------------------------------------------------+