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# PACKARD BELL
386/25
Processor 80386SX
Processor 25MHz
Speed
Chip Set Unidentified
Max. Onboard 32MB
DRAM
Cache 64KB
BIOS Unidentified
Dimensions 330mm x 218mm
I/O Options Parallel port, serial ports (2), external memory
cards (2)
NPU Options 80387SX/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+----------+--------------------+----------|
| PS/2 mouse port | J2 | Reset switch | J23 |
|-----------------+----------+--------------------+----------|
| Parallel port | J4 | Speaker | J24 |
|-----------------+----------+--------------------+----------|
| Serial port 1 | J5 | Front panel | J25 |
| | | connector | |
|-----------------+----------+--------------------+----------|
| Serial port 2 | J6 | External memory | SL1 & |
| | | cards | SL2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Printer edge select trailing | JP1 | pins 2 & 3 |
| | edge | | closed |
|---+----------------------------------+--------+------------|
| | Printer edge select leading edge | JP1 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Parallel port 1 enabled | JP2 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Parallel port 1 disabled | JP2 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Parallel port 2 enabled | JP3 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Parallel port 2 disabled | JP3 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | COM 1 enabled | JP4 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | COM 1 disabled | JP4 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | COM 2 enabled | JP5 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | COM 2 disabled | JP5 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | JP6 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP6 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP7 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | BIOS type select 27256 | JP8 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | BIOS type select 27512 | JP8 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | DRAM speed select 100ns | JP13 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | DRAM speed select 85ns | JP13 | pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | SL1 | SL2 |
|------+-------------+-------------+-----------+-------------|
| 1MB | (2) 256K x | (2) 256K x | Not | Not |
| | 9 | 9 | installed | installed |
|------+-------------+-------------+-----------+-------------|
| 2MB | (2) 1M x 9 | NONE | Not | Not |
| | | | installed | installed |
|------+-------------+-------------+-----------+-------------|
| 4MB | (2) 1M x 9 | (2) 1M x 9 | Not | Not |
| | | | installed | installed |
|------+-------------+-------------+-----------+-------------|
| 8MB | (2) 4M x 9 | NONE | Not | Not |
| | | | installed | installed |
|------+-------------+-------------+-----------+-------------|
| 9MB | (2) 256K x | (2) 256K x | Not | 8MB card |
| | 9 | 9 | installed | installed |
|------+-------------+-------------+-----------+-------------|
| 10MB | (2) 1M x 9 | NONE | Not | 8MB card |
| | | | installed | installed |
|------+-------------+-------------+-----------+-------------|
| 32MB | (2) 4M x 9 | (2) 4M x 9 | Not | 16MB card |
| | | | installed | installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP9 | JP10 | JP11 | JP12 |
|------+--------------+------------+------------+------------|
| 1MB | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 | pins 1 & 2 |
| | closed | closed | closed | closed |
|------+--------------+------------+------------+------------|
| 2MB | pins 1 & 2 | pins 2 & 3 | pins 2 & 3 | pins 1 & 2 |
| | closed | closed | closed | closed |
|------+--------------+------------+------------+------------|
| 4MB | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 |
| | closed | closed | closed | closed |
|------+--------------+------------+------------+------------|
| 8MB | pins 2 & 3 | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 |
| | closed | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP14 | JP15 |
|-------------------+--------------------+-------------------|
| Fast page mode | pins 1 & 2 closed | pins 1 & 2 closed |
|-------------------+--------------------+-------------------|
| Static column | pins 2 & 3 closed | pins 1 & 2 closed |
|-------------------+--------------------+-------------------|
| Standard RAS/CAS | pins 2 & 3 closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 64KB | (8) 16K x 4 | (4) 8K x 8 | (3) 16K x 4 |
+------------------------------------------------------------+