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# REPLY CORPORATION
POWERBOARD 25-286, PS/2 MODEL 25
Processor CX486DX2/80486DX2/80486DX4
Processor 50(internal)/66(internal)/100(internal)MHz
Speed
Chip Set Unidentified
Max. Onboard 32MB
DRAM
Cache None
BIOS Reply
Dimensions 330mm x 218mm
I/O Options PS/2 mouse port, parallel port, serial port,
floppy drive interface, IDE interface, VGA
interface, riser slot
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| VGA interface | J4 | PS/2 mouse port | J21 |
|-------------------+----------+------------------+----------|
| Drive power | J5 | Headphone | J23 |
| connector | | connector | |
|-------------------+----------+------------------+----------|
| External battery | J6 | Parallel port | J24 |
|-------------------+----------+------------------+----------|
| IDE interface | J13 | Serial port | J25 |
|-------------------+----------+------------------+----------|
| Floppy drive | J15 | Riser Card | SL1 |
| interface | | | |
|-------------------+----------+------------------+----------|
| ST-506/412 | J19 | | |
| interface | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | VGA IRQ enabled | J3 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | VGA IRQ disabled | J3 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Floppy drive cable select type A | J12 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Floppy drive cable select type B | J12 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | IRQ5 enabled | J17 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | IRQ5 disabled | J17 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | J18 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | J18 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (1) 256K x 36 | NONE |
|------------------+--------------------+--------------------|
| 2MB | (1) 256K x 36 | (1) 256K x 36 |
|------------------+--------------------+--------------------|
| 4MB | (1) 1M x 36 | NONE |
|------------------+--------------------+--------------------|
| 5MB | (1) 1M x 36 | (1) 256K x 36 |
|------------------+--------------------+--------------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (1) 4M x 36 | NONE |
|------------------+--------------------+--------------------|
| 17MB | (1) 256K x 36 | (1) 4M x 36 |
|------------------+--------------------+--------------------|
| 17MB | (1) 4M x 36 | (1) 256K x 36 |
|------------------+--------------------+--------------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 |
|------------------+--------------------+--------------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | J1 | J2 |
|--------------------+-------------------+-------------------|
| CX486DX2 | Closed | Open |
|--------------------+-------------------+-------------------|
| 80486DX2 | Open | Closed |
|--------------------+-------------------+-------------------|
| 80486DX4 | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | SW1/1 | SW1/2 | SW1/3 |
|---------------+--------------+--------------+--------------|
| 50iMHz | Off | Off | On |
|---------------+--------------+--------------+--------------|
| 66iMHz | On | On | Off |
|---------------+--------------+--------------+--------------|
| 100iMHz | On | On | Off |
+------------------------------------------------------------+