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# DTK COMPUTER, INC.
PPM-1661D(S)/PPM-2061D(S)/PPM-2561D(S)
Processor 80386SX
Processor Speed 16/20/25MHz
Chip Set DTK
Video Chip Set None
Maximum Onboard 8MB
Memory
Maximum Video None
Memory
Cache None
BIOS AMI/DTK
Dimensions 333mm x 222mm
I/O Options Floppy drive interface, IDE interface,
parallel port, PS/2 mouse port, serial ports
(2), game interface
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Serial port | CN1 | Reset switch | J6 |
|------------------+----------+-------------------+----------|
| Serial port | CN2 | External battery | J7 |
|------------------+----------+-------------------+----------|
| Parallel port | CN3 | Game interface | J13 |
|------------------+----------+-------------------+----------|
| PS/2 mouse port | CN4 | IDE interface LED | J15 |
|------------------+----------+-------------------+----------|
| Power LED & | J1 | IDE interface | J16 |
| keylock | | | |
|------------------+----------+-------------------+----------|
| Turbo switch | J3 | Floppy drive | J17 |
| | | interface | |
|------------------+----------+-------------------+----------|
| Turbo LED | J5 | Riser slot | SL1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|------------------------------------+----------+------------|
| » | NPU not installed | J8 | Closed |
|---+--------------------------------+----------+------------|
| | NPU installed | J8 | Open |
|---+--------------------------------+----------+------------|
| » | Floppy drive interface enabled | J19 pins | Closed |
| | | 3 & 4 | |
|---+--------------------------------+----------+------------|
| | Floppy drive interface | J19 pins | Open |
| | disabled | 3 & 4 | |
|---+--------------------------------+----------+------------|
| » | IDE interface disabled | J19 pins | Open |
| | | 13 & 14 | |
|---+--------------------------------+----------+------------|
| | IDE interface enabled | J19 pins | Closed |
| | | 13 & 14 | |
|---+--------------------------------+----------+------------|
| | Game port enabled | J19 pins | Closed |
| | | 15 & 16 | |
|---+--------------------------------+----------+------------|
| | Game port disabled | J19 pins | Open |
| | | 15 & 16 | |
|---+--------------------------------+----------+------------|
| » | BIOS type select 27256 | W7 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | BIOS type select 27128 | W7 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | NPU clock input select 387CLK | W10 | Open |
| | = 386CLK | | |
|---+--------------------------------+----------+------------|
| | NPU clock input select 387CLK | W10 | Closed |
| | = 386CLK/3 | | |
|---+--------------------------------+----------+------------|
| » | Battery type select external | W11 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | Battery type select internal | W11 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | Monitor type select monochrome | W12 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | Monitor type select color | W12 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 512KB | (2) 256K x | None | None | None |
| | 9 | | | |
|-------+-------------+------------+------------+------------|
| 1MB | (2) 256K x | (2) 256K x | None | None |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 1.5MB | (2) 256K x | (2) 256K x | (2) 256K x | None |
| | 9 | 9 | 9 | |
|-------+-------------+------------+------------+------------|
| 2MB | (2) 256K x | (2) 256K x | (2) 256K x | (2) 256K x |
| | 9 | 9 | 9 | 9 |
|-------+-------------+------------+------------+------------|
| 2MB | (2) 1M x 9 | None | None | None |
|-------+-------------+------------+------------+------------|
| 3MB | (2) 256K x | (2) 256K x | (2) 1M x 9 | None |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 4MB | (2) 1M x 9 | (2) 1M x 9 | None | None |
|-------+-------------+------------+------------+------------|
| 5MB | (2) 256K x | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 6MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | None |
|-------+-------------+------------+------------+------------|
| 8MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT ADDRESS/IRQ SELECTION |
|------------------------------------------------------------|
| Setting | IRQ | J19 pins 5 & 6 | J19 pins 7 & 8 |
|-----------------+--------+----------------+----------------|
| » | LPT1 | IRQ7 | Open | Closed |
|---+-------------+--------+----------------+----------------|
| | LPT2 | IRQ5 | Closed | Open |
|---+-------------+--------+----------------+----------------|
| | Disabled | None | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT SELECTION |
|------------------------------------------------------------|
| Port 1 | Port 2 | IRQ3 | IRQ4 | J19 | J19 | J19 |
| | | | | pins | pins | pins |
| | | | | 1&2 | 9&10 |11&12 |
|----------+--------+---------+---------+------+------+------|
|»| COM1 | COM2 | COM2 | COM1 |Closed|Closed|Closed|
|-+--------+--------+---------+---------+------+------+------|
| | COM3 | COM4 | COM4 | COM3 | Open |Closed|Closed|
|-+--------+--------+---------+---------+------+------+------|
| | COM1 |Disabled|Available| COM1 |Closed|Closed| Open |
|-+--------+--------+---------+---------+------+------+------|
| |Disabled| COM2 | COM2 |Available|Closed| Open |Closed|
|-+--------+--------+---------+---------+------+------+------|
| | COM3 |Disabled|Available| COM3 | Open |Closed| Open |
|-+--------+--------+---------+---------+------+------+------|
| |Disabled| COM4 | COM4 |Available| Open | Open |Closed|
+------------------------------------------------------------+