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# UNIDENTIFIED
386/25 CACHE
Processor 80386SX
Processor Speed 25MHz
Chip Set OPTI
Max. Onboard DRAM 16MB
Cache 32/64KB (location unidentified)
BIOS AMI
Dimensions 330mm x 220mm
I/O Options Memory card
NPU Options 80387SX/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+-----------+-----------------+-----------|
| External battery | J1 | Turbo switch | J14 (pins |
| | | | 7 & 8) |
|------------------+-----------+-----------------+-----------|
| Speaker | J14 (pins | Power LED & | J15 |
| | 1 - 4) | keylock | |
|------------------+-----------+-----------------+-----------|
| Reset switch | J14 (pins | External memory | S1 |
| | 5 & 6) | card | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Battery type select external | J1 | Closed |
|---+----------------------------------+--------+------------|
| | Battery type select internal | J1 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select color | J2 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | J2 | Open |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J4 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J10 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J11 | pins 1 & 2 |
| | alter | | 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 |
|-------+-------------+------------+------------+------------|
| 2.5MB | (2) 256K x | (2) 1M x 9 | NONE | NONE |
| | 9 | | | |
|-------+-------------+------------+------------+------------|
| 2.5MB | (2) 1M x 9 | (2) 256K x | NONE | NONE |
| | | 9 | | |
|-------+-------------+------------+------------+------------|
| 3MB | (2) 256K x | (2) 256K x | (2) 1M x 9 | NONE |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 3MB | (2) 256K x | (2) 1M x 9 | (2) 256K x | NONE |
| | 9 | | 9 | |
|-------+-------------+------------+------------+------------|
| 3MB | (2) 1M x 9 | (2) 256K x | (2) 256K x | NONE |
| | | 9 | 9 | |
|-------+-------------+------------+------------+------------|
| 3.5MB | (2) 256K x | (2) 256K x | (2) 1M x 9 | (2) 256K x |
| | 9 | 9 | | 9 |
|-------+-------------+------------+------------+------------|
| 3.5MB | (2) 256K x | (2) 1M x 9 | (2) 256K x | (2) 256K x |
| | 9 | | 9 | 9 |
|-------+-------------+------------+------------+------------|
| 3.5MB | (2) 1M x 9 | (2) 256K x | (2) 256K x | (2) 256K x |
| | | 9 | 9 | 9 |
|-------+-------------+------------+------------+------------|
| 4MB | (2) 1M x 9 | (2) 1M x 9 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 4.5MB | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 | NONE |
| | 9 | | | |
|-------+-------------+------------+------------+------------|
| 4.5MB | (2) 1M x 9 | (2) 1M x 9 | (2) 256K x | NONE |
| | | | 9 | |
|-------+-------------+------------+------------+------------|
| 4.5MB | (2) 1M x 9 | (2) 256K x | (2) 1M x 9 | NONE |
| | | 9 | | |
|-------+-------------+------------+------------+------------|
| 5MB | (2) 256K x | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 5MB | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 | (2) 256K x |
| | 9 | | | 9 |
|-------+-------------+------------+------------+------------|
| 5MB | (2) 1M x 9 | (2) 1M x 9 | (2) 256K x | (2) 256K x |
| | | | 9 | 9 |
|-------+-------------+------------+------------+------------|
| 10MB | (2) 1M x 9 | (2) 256K x | (2) 1M x 9 | (2) 256K x |
| | | 9 | | 9 |
|-------+-------------+------------+------------+------------|
| 6.5MB | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
| | 9 | | | |
|-------+-------------+------------+------------+------------|
| 6.5MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 256K x |
| | | | | 9 |
|-------+-------------+------------+------------+------------|
| 6.5MB | (2) 1M x 9 | (2) 256K x | (2) 1M x 9 | (2) 1M x 9 |
| | | 9 | | |
|-------+-------------+------------+------------+------------|
| 8MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 32KB | (4) 8K x 8 | NONE | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
|------------------------------------------------------------|
| Note: The location of CACHE is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J5 | J8 | J9 |
|---------+-------------------+----------+-------------------|
| 32KB | pins 1 & 2 closed | Open | pins 1 & 2 closed |
|---------+-------------------+----------+-------------------|
| 64KB | pins 2 & 3 closed | Closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE MEMORY LINE CONFIGURATION |
|------------------------------------------------------------|
| Size | J6 | J7 |
|--------------------+------------------+--------------------|
| 4 Bytes | Closed | pins 1 & 2 closed |
|--------------------+------------------+--------------------|
| 8 Bytes | Closed | pins 2 & 3 closed |
|--------------------+------------------+--------------------|
| 16 Bytes | Open | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS ROM TYPE CONFIGURATION |
|------------------------------------------------------------|
| TYPE | J3 |
|----------------------------+-------------------------------|
| 32Kb x 8 | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 64KB x 8 | pins 1 & 2 closed |
+------------------------------------------------------------+