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# L & K MICRO SUPPLY, INC.
486 CONTAQ CACHE
Processor 80486SX/80487SX/80486DX
Processor Speed 16/20/25/33/40/50MHz
Chip Set CONTAQ
Max. Onboard DRAM 32MB
Cache 64/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options None
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| Speaker | J3 | Turbo switch | JP18 |
|---------------------+----------+----------------+----------|
| External battery | J7 | Turbo LED | JP20 |
|---------------------+----------+----------------+----------|
| Power LED & keylock | J8 | Reset switch | JP21 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | NPU read cycle select 0 wait | JP5 | pins 1 & 2 |
| | states | | closed |
|---+----------------------------------+--------+------------|
| | NPU read cycle select 1 wait | JP5 | pins 2 & 3 |
| | state | | closed |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP24 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP24 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select monochrome | JP25 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select color | JP25 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 3 |
|------------------+--------------------+--------------------|
| 1MB | (4) 256K x 9 | NONE |
|------------------+--------------------+--------------------|
| 2MB | (4) 256K x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 4MB | (4) 1M x 9 | NONE |
|------------------+--------------------+--------------------|
| 5MB | (4) 256K x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank | Bank | TAG | Location | Dirty | Location |
| | 0 | 1 | | | Bit | |
|-------+-------+-------+------+----------+-------+----------|
| 64KB | (4) | (4) | (2) | U14 & | (1) | U16 |
| | 8K x | 8K x | 16K | U15 | 16K x | |
| | 8 | 8 | x 4 | | 4 | |
|-------+-------+-------+------+----------+-------+----------|
| 64KB | (4) | (4) | (2) | U14 & | (1) | U18 |
| | 8K x | 8K x | 16K | U15 | 16K x | |
| | 8 | 8 | x 4 | | 1 | |
|-------+-------+-------+------+----------+-------+----------|
| 64KB | (4) | (4) | (1) | NU1 | (1) | U16 |
| | 8K x | 8K x | 8K x | | 16K x | |
| | 8 | 8 | 8 | | 4 | |
|-------+-------+-------+------+----------+-------+----------|
| 64KB | (4) | (4) | (1) | NU1 | (1) | U18 |
| | 8K x | 8K x | 8K x | | 16K x | |
| | 8 | 8 | 8 | | 1 | |
|-------+-------+-------+------+----------+-------+----------|
| 256KB | (4) | (4) | (2) | U14 & | (1) | U16 |
| | 32K x | 32K x | 16K | U15 | 16K x | |
| | 8 | 8 | x 4 | | 4 | |
|-------+-------+-------+------+----------+-------+----------|
| 256KB | (4) | (4) | (2) | U14 & | (1) | U18 |
| | 32K x | 32K x | 16K | U15 | 16K x | |
| | 8 | 8 | x 4 | | 1 | |
|-------+-------+-------+------+----------+-------+----------|
| 256KB | (4) | (4) | (1) | NU1 | (1) | U16 |
| | 32K x | 32K x | 32K | | 16K x | |
| | 8 | 8 | x 8 | | 4 | |
|-------+-------+-------+------+----------+-------+----------|
| 256KB | (4) | (4) | (1) | NU1 | (1) | U18 |
| | 32K x | 32K x | 32K | | 16K x | |
| | 8 | 8 | x 8 | | 1 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP7 | JP8 | JP9 | JP10 |
|-------+-------------+------------+------------+------------|
| 64KB | 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 | JP1 | JP2 | JP3 | JP4 |
|---------+------------+------------+------------+-----------|
| 80486SX | pins 2 & 3 | pins 2 & 3 | Open | pins 1 & |
| | closed | closed | | 3 closed |
|---------+------------+------------+------------+-----------|
| 80487SX | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | pins 2 & |
| | closed | closed | closed | 3 closed |
|---------+------------+------------+------------+-----------|
| 80486DX | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 | pins 1 & |
| | closed | closed | closed | 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | Crystal at | JP6 | JP11 | JP12 |
| | OSC1 | | | |
|-------+------------+-------------+------------+------------|
| 16MHz | 32MHz | pins 5 & 6 | pins 2 & 3 | pins 2 & 3 |
| | | closed | closed | closed |
|-------+------------+-------------+------------+------------|
| 20MHz | 40MHz | pins 5 & 6 | pins 2 & 3 | pins 2 & 3 |
| | | closed | closed | closed |
|-------+------------+-------------+------------+------------|
| 25MHz | 25MHz | pins 3 & 4 | pins 1 & 2 | pins 2 & 3 |
| | | closed | closed | closed |
|-------+------------+-------------+------------+------------|
| 33MHz | 33MHz | pins 3 & 4 | pins 2 & 3 | pins 1 & 2 |
| | | closed | closed | closed |
|-------+------------+-------------+------------+------------|
| 40MHz | 40MHz | pins 3 & 4 | pins 2 & 3 | pins 2 & 3 |
| | | closed | closed | closed |
|-------+------------+-------------+------------+------------|
| 50MHz | 50MHz | pins 3 & 4 | pins 1 & 2 | pins 1 & 2 |
| | | closed | closed | closed |
+------------------------------------------------------------+