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# DTK COMPUTER, INC.
PKM-0039S/FEAT-39
Processor CX486M6/80486SX/AMD486SL/CX486M7/80486DX/80486DX2/80486DX4
Processor 20/25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set Unidentified
Max. 128MB
Onboard
DRAM
Cache 128/256/512/1024KB
BIOS Award
Dimensions 254mm x 218mm
I/O 32-bit VESA local bus slots (3), green PC connector
Options
NPU None
Options
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | J2 | Turbo LED | J35 |
|------------------+----------+-------------------+----------|
| Green PC LED | J25 | Power LED & | J36 |
| | | keylock | |
|------------------+----------+-------------------+----------|
| Reset switch | J33 | Speaker | J37 |
|------------------+----------+-------------------+----------|
| Turbo switch | J34 | 32-bit VESA local | SL1 - |
| | | bus slots | SL3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | CMOS memory normal operation | J2 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | J2 | pins 3 & 4 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Battery type select external | J2 | Closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J11 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J13 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J16 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J24 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | AMD CPU clock speed select 2x | J40 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | AMD CPU clock speed select 3x | J40 | pins 2 & 3 |
| | | | closed |
|------------------------------------------------------------|
| Note: The location of J40 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+---------------+-------------+------------+----------|
| 1MB | (1) 256K x 36 | NONE | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 2MB | (1) 256K x 36 | (1) 256K x | NONE | NONE |
| | | 36 | | |
|------+---------------+-------------+------------+----------|
| 2MB | (1) 512K x 36 | NONE | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 4MB | (1) 256K x 36 | (1) 256K x | (1) 512K x | NONE |
| | | 36 | 36 | |
|------+---------------+-------------+------------+----------|
| 4MB | (1) 512K x 36 | (1) 512K x | NONE | NONE |
| | | 36 | | |
|------+---------------+-------------+------------+----------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 5MB | (1) 256K x 36 | (1) 1M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 6MB | (1) 256K x 36 | (1) 256K x | (1) 1M x | NONE |
| | | 36 | 36 | |
|------+---------------+-------------+------------+----------|
| 6MB | (1) 512K x 36 | (1) 1M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 8MB | (1) 256K x 36 | (1) 256K x | (1) 512K x | (1) 1M x |
| | | 36 | 36 | 36 |
|------+---------------+-------------+------------+----------|
| 8MB | (1) 512K x 36 | (1) 512K x | (1) 1M x | NONE |
| | | 36 | 36 | |
|------+---------------+-------------+------------+----------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 8MB | (1) 2M x 36 | NONE | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 10MB | (1) 256K x 36 | (1) 256K x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|------+---------------+-------------+------------+----------|
| 12MB | (1) 512K x 36 | (1) 512K x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|------+---------------+-------------+------------+----------|
| 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) 2M x 36 | (1) 2M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 17MB | (1) 256K x 36 | (1) 4M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 18MB | (1) 256K x 36 | (1) 256K x | (1) 4M x | NONE |
| | | 36 | 36 | |
|------+---------------+-------------+------------+----------|
| 18MB | (1) 512K x 36 | (1) 4M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 20MB | (1) 512K x 36 | (1) 512K x | (1) 4M x | NONE |
| | | 36 | 36 | |
|------+---------------+-------------+------------+----------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 24MB | (1) 512K x 36 | (1) 512K x | (1) 1M x | (1) 4M x |
| | | 36 | 36 | 36 |
|------+---------------+-------------+------------+----------|
| 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+---------------+-------------+------------+----------|
| 24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | NONE |
| | | | 36 | |
|------+---------------+-------------+------------+----------|
| 32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|------+---------------+-------------+------------+----------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 32MB | (1) 8M x 36 | NONE | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 36MB | (1) 512K x 36 | (1) 512K x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 4M x | (1) 4M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 8M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 1M x 36 | (1) 1M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 1M x 36 | (1) 1M x | (1) 8M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M 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 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 16M x | NONE | NONE | NONE |
| | 36 | | | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x | (1) 8M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | (1) 8M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 65MB | (1) 256K x | (1) 16M x | NONE | NONE |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 68MB | (1) 1M x 36 | (1) 16M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 68MB | (1) 1M x 36 | (1) 8M x | (1) 8M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 1M x 36 | (1) 1M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 4M x 36 | (1) 8M x | (1) 8M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 4M x 36 | (1) 4M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16M x | (1) 16M x | NONE | NONE |
| | 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 or (1) |
| | | | 32K x 8 |
|-------+--------------+--------------+----------------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
|-------+--------------+--------------+----------------------|
| 256KB | (4) 64K x 8 | NONE | (1) 32K x 8 |
|-------+--------------+--------------+----------------------|
| 512KB | (4) 64K x 8 | (4) 64K x 8 | (1) 32K x 8 |
|-------+--------------+--------------+----------------------|
| 512KB | (4) 128K x 8 | NONE | (1) 32K x 8 |
|-------+--------------+--------------+----------------------|
| 1MB | (4) 128K x 8 | (4) 128K x 8 | (1) 64K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J6 | J7 | J8 | J9 | J10 |
|---------+---------+---------+-------+-------+--------------|
| 128KB | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2, 3 & 4 |
|---------+---------+---------+-------+-------+--------------|
| 256KB | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3, 4 & 5 |
|---------+---------+---------+-------+-------+--------------|
| 256KB | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | 1 & 2, 3 & 4 |
|---------+---------+---------+-------+-------+--------------|
| 512KB | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3, 4 & 5 |
|---------+---------+---------+-------+-------+--------------|
| 512KB | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2, 3 & 4 |
|---------+---------+---------+-------+-------+--------------|
| 1MB | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3, 4 & 5 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | J14 | J15 | J17 | J18 |
|--------+------------+------------+------------+------------|
|CX486M6 | Installed | Not | Not | Installed |
| | | installeld | installeld | |
|--------+------------+------------+------------+------------|
|80486SX | Not | Installed | Not | Installed |
| | installeld | | installeld | |
|--------+------------+------------+------------+------------|
|AMD486SL| Not | Installed | Installed | Not |
| | installeld | | | installeld |
|--------+------------+------------+------------+------------|
|CX486M7 | Installed | Not | Installed | Not |
| | | installeld | | installeld |
|--------+------------+------------+------------+------------|
|80486DX | Not | Installed | Installed | Not |
| | installeld | | | installeld |
|--------+------------+------------+------------+------------|
|80486DX2| Not | Installed | Installed | Not |
| | installeld | | | installeld |
|--------+------------+------------+------------+------------|
|80486DX4| Not | Installed | Installed | Not |
| | installeld | | | installeld |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | J19 | J22 | J23 | J28 | J29 |
|-----------+---------+---------+---------+--------+---------|
| CX486M6 | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 | Closed |
|-----------+---------+---------+---------+--------+---------|
| 80486SX | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 | Open |
|-----------+---------+---------+---------+--------+---------|
| AMD486SL | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 | Closed |
|-----------+---------+---------+---------+--------+---------|
| CX486M7 | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 | Closed |
|-----------+---------+---------+---------+--------+---------|
| 80486DX | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 | Closed |
|-----------+---------+---------+---------+--------+---------|
| 80486DX2 | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 | Closed |
|-----------+---------+---------+---------+--------+---------|
| 80486DX4 | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (MX8315) |
|------------------------------------------------------------|
| Speed | J27 |
|--------------------------+---------------------------------|
| 20MHz | Open |
|--------------------------+---------------------------------|
| 25MHz | pins 5 & 6 closed |
|--------------------------+---------------------------------|
| 33MHz | pins 1 & 2, 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 40MHz | pins 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 50iMHz | pins 5 & 6 closed |
|--------------------------+---------------------------------|
| 50MHz | pins 1 & 2 closed |
|--------------------------+---------------------------------|
| 66iMHz | pins 1 & 2, 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 75iMHz | pins 5 & 6 closed |
|--------------------------+---------------------------------|
| 100iMHz | pins 1 & 2, 3 & 4, 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (KDN-1401/1402C) |
|------------------------------------------------------------|
| Speed | J27 |
|----------------------------+-------------------------------|
| 20MHz | pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| 25MHz | pins 1 & 2, 5 & 6 closed |
|----------------------------+-------------------------------|
| 33MHz | pins 3 & 4, 5 & 6 closed |
|----------------------------+-------------------------------|
| 40MHz | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 50iMHz | pins 1 & 2, 5 & 6 closed |
|----------------------------+-------------------------------|
| 50MHz | pins 3 & 4 closed |
|----------------------------+-------------------------------|
| 66iMHz | pins 3 & 4, 5 & 6 closed |
|----------------------------+-------------------------------|
| 75iMHz | pins 1 & 2, 5 & 6 closed |
|----------------------------+-------------------------------|
| 100iMHz | pins 3 & 4, 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | J21 |
|----------------------------+-------------------------------|
| 3.3v | pins 5 & 6, 7 & 8 closed |
|----------------------------+-------------------------------|
| 5v | pins 1 & 2, 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE CONFIGURATION |
|------------------------------------------------------------|
| Wait states | J31 |
|----------------------------+-------------------------------|
| 0 wait states | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 1 wait state | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | J30 |
|----------------------------+-------------------------------|
| <= 33MHz | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| > 33MHz | pins 2 & 3 closed |
+------------------------------------------------------------+