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# DTK COMPUTER, INC.
PKM-0038E (VER. 1.00)
Processor CX486M6/80486SX/CX486M7/80486DX/80486DX2
Processor Speed 25/33/40/50(internal)/50/66(internal)MHz
Chip Set Unidentified
Max. Onboard DRAM 256MB
Cache 128/256KB
BIOS AMI
Dimensions 254mm x 218mm
I/O Options 32-bit VESA local bus slots (3)
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | JP2 | Power LED & | JP31 |
| | | keylock | |
|------------------+----------+-------------------+----------|
| Turbo LED | JP28 | Speaker | JP32 |
|------------------+----------+-------------------+----------|
| Turbo switch | JP29 | 32-bit VESA local | SL1 - |
| | | bus slots | SL3 |
|------------------+----------+-------------------+----------|
| Reset switch | JP30 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|----------------------------------+--------+----------------|
| » | CMOS memory normal operation | JP7 | pins 2 & 3 |
| | | | closed |
|---+------------------------------+--------+----------------|
| | CMOS memory clear | JP7 | pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | | |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 256K x | (1) 256K x | (1) 256K x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 1M x 36 | (1) 256K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 256K x | (1) 1M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 256K x | (1) 1M x 36 | (1) 1M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 4M x 36 | (1) 256K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 256K x | (1) 4M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 19MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 19MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 25MB | (1) 256K x | (1) 4M x 36 | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 33MB | (1) 256K x | (1) 4M x 36 | (1) 4M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 49MB | (1) 256K x | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 52MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 52MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 16M x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 65MB | (1) 16M x | (1) 256K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 65MB | (1) 256K x | (1) 16M x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 66MB | (1) 16M x | (1) 256K x | (1) 256K x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 67MB | (1) 16M x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 68MB | (1) 16M x | (1) 1M x 36 | NONE | NONE |
| | 36 | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 68MB | (1) 1M x 36 | (1) 16M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 69MB | (1) 1M x 36 | (1) 16M x | (1) 256K x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 70MB | (1) 1M x 36 | (1) 16M x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 16M x | (1) 1M x | (1) 1M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 76MB | (1) 16M x | (1) 1M x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 16M x | (1) 4M x | NONE | NONE |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 4M x 36 | (1) 16M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 81MB | (1) 4M x 36 | (1) 16M x | (1) 256K x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 16M x | (1) 4M x | (1) 4M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 97MB | (1) 4M x 36 | (1) 256K x | (1) 16M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 112MB | (1) 16M x | (1) 4M x | (1) 4M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16M x | (1) 16M x | NONE | NONE |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 129MB | (1) 16M x | (1) 16M x | (1) 256K x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 129MB | (1) 256K x | (1) 16M x | (1) 16M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 130MB | (1) 16M x | (1) 16M x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 132MB | (1) 1M x 36 | (1) 16M x | (1) 16M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 133MB | (1) 16M x | (1) 16M x | (1) 1M x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 144MB | (1) 4M x 36 | (1) 16M x | (1) 16M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 145MB | (1) 256K x | (1) 16M x | (1) 16M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 145MB | (1) 256K x | (1) 16M x | (1) 16M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 192MB | (1) 16M x | (1) 16M x | (1) 16M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 193MB | (1) 256K x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 196MB | (1) 1M x 36 | (1) 16M x | (1) 16M x | (1) 16M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 208MB | (1) 4M x 36 | (1) 16M x | (1) 16M x | (1) 16M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 256MB | (1) 16M x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 36 | 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 | JP8 | JP11 | JP17 |
|---------+----------+-------------------+-------------------|
| 128KB | Open | pins 2 & 3 closed | pins 2 & 3 closed |
|---------+----------+-------------------+-------------------|
| 256KB | Closed | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP13 | JP14 | JP15 | JP16 |
|----------+--------+--------+------------------+------------|
| CX486M6 | Open | Open | pins 2 & 3 | Open |
| | | | closed | |
|----------+--------+--------+------------------+------------|
| 80486SX | Open | Open | pins 2 & 3 | Open |
| | | | closed | |
|----------+--------+--------+------------------+------------|
| CX486M7 | Closed | Open | pins 2 & 3 | Open |
| | | | closed | |
|----------+--------+--------+------------------+------------|
| 80486DX | Open | Closed | pins 1 & 2 | pins 2 & 3 |
| | | | closed | closed |
|----------+--------+--------+------------------+------------|
| 80486DX2 | Open | Closed | pins 1 & 2 | pins 2 & 3 |
| | | | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | jp18 | jp19 | jp20 | jp21 |
|----------+---------+---------+---------+-------------------|
| 25MHz | Closed | Open | Open | pins 1 & 2 closed |
|----------+---------+---------+---------+-------------------|
| 33MHz | Closed | Closed | Closed | pins 1 & 2 closed |
|----------+---------+---------+---------+-------------------|
| 40MHz | Closed | Closed | Open | pins 1 & 2 closed |
|----------+---------+---------+---------+-------------------|
| 50iMHz | Closed | Open | Open | pins 1 & 2 closed |
|----------+---------+---------+---------+-------------------|
| 50MHz | Open | Open | Closed | pins 2 & 3 closed |
|----------+---------+---------+---------+-------------------|
| 66iMHz | Closed | Closed | Closed | pins 1 & 2 closed |
+------------------------------------------------------------+