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# MICRONICS COMPUTERS, INC.
486V WITH ZIF SOCKET
Processor 80486SX/80486DX/80486DX2/Pentium Overdrive
Processor 25/33/50(internal)/66(internal)MHz
Speed
Chip Set Unidentified
Max. Onboard 64MB
DRAM
Cache 64/128/256KB (on external cache card)
BIOS AMI
Dimensions 330mm x 218mm
I/O Options External cache card, 32-bit VESA local bus slots
(2), floppy drive interface, IDE interface (2),
parallel port, serial ports (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Serial port 1 | J11 | IDE interface | J30 |
| | | (secondary) | |
|------------------+----------+-------------------+----------|
| Parallel port | J12 | External keyboard | J36 |
|------------------+----------+-------------------+----------|
| Serial port 2 | J14 | Reset switch | W15 |
|------------------+----------+-------------------+----------|
| Floppy drive | J15 | Turbo LED | W17 |
| interface | | | |
|------------------+----------+-------------------+----------|
| IDE interface | J16 | Turbo switch | W18 |
| (primary) | | | |
|------------------+----------+-------------------+----------|
| External battery | J24 | IDE interface LED | W19 |
|------------------+----------+-------------------+----------|
| Speaker | J28 | 32-bit VESA local | SL1 & |
| | | bus slots | SL2 |
|------------------+----------+-------------------+----------|
| Power LED & | J29 | External cache | SL3 |
| keylock | | card slot | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Parallel port unidirectional | W16 | pins 1 & 2 |
| | (printer) | | closed |
|---+----------------------------------+--------+------------|
| | Parallel port bidirectional | W16 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Flash BIOS write protect enabled | W20 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Flash BIOS write protect | W20 | pins 1 & 2 |
| | disabled | | closed |
|---+----------------------------------+--------+------------|
| » | CPU type select 80486DX/DX2 | W22 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CPU type select Pentium | W22 | pins 2 & 3 |
| | Overdrive | | closed |
|---+----------------------------------+--------+------------|
| » | CPU type select 80486SX (do not | W23 | pins 1 & 2 |
| | install in ZIF socket) | | closed |
|---+----------------------------------+--------+------------|
| | CPU type select non 80486SX | W23 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 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 |
|------+-------------+-------------+------------+------------|
| 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 | |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 4M x |
| | | | 36 | 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 | |
|------+-------------+-------------+------------+------------|
| 52MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM SWITCH CONFIGURATION |
|------------------------------------------------------------|
| Size | SW8/1 | SW8/2 | SW8/3 | SW8/4 |
|-----------+------------+-----------+-----------+-----------|
| 4MB | On | On | On | On |
|-----------+------------+-----------+-----------+-----------|
| 8MB | Off | On | On | On |
|-----------+------------+-----------+-----------+-----------|
| 12MB | On | Off | On | On |
|-----------+------------+-----------+-----------+-----------|
| 16MB | Off | Off | On | On |
|-----------+------------+-----------+-----------+-----------|
| 16MB | On | On | Off | On |
|-----------+------------+-----------+-----------+-----------|
| 20MB | On | On | Off | Off |
|-----------+------------+-----------+-----------+-----------|
| 24MB | On | Off | On | Off |
|-----------+------------+-----------+-----------+-----------|
| 28MB | Off | On | On | Off |
|-----------+------------+-----------+-----------+-----------|
| 32MB | Off | On | Off | On |
|-----------+------------+-----------+-----------+-----------|
| 36MB | On | Off | Off | Off |
|-----------+------------+-----------+-----------+-----------|
| 40MB | Off | Off | On | Off |
|-----------+------------+-----------+-----------+-----------|
| 48MB | On | Off | Off | On |
|-----------+------------+-----------+-----------+-----------|
| 52MB | Off | Off | Off | Off |
|-----------+------------+-----------+-----------+-----------|
| 64MB | Off | Off | Off | On |
|------------------------------------------------------------|
| Note:This table corresponds exactly to the above DRAM |
| configuration table. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Size | SW8/5 | SW8/6 | SW8/7 | SW8/8 |
|---------+------------+------------+------------+-----------|
| 25MHz | Off | Off | On | Off |
|---------+------------+------------+------------+-----------|
| 33MHz | Off | On | Off | Off |
|---------+------------+------------+------------+-----------|
| 50iMHz | Off | Off | On | Off |
|---------+------------+------------+------------+-----------|
| 66iMHz | Off | On | Off | Off |
+------------------------------------------------------------+