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# UNIDENTIFIED
80386 AT
Processor 80386SX
Processor Speed 25/33MHz
Chip Set Unidentified
Max. Onboard DRAM 16MB
Cache 64KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options 32-bit external memory card
NPU Options 80387SX/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | J13 | Speaker | J19 |
|------------------+----------+-------------------+----------|
| Reset switch | J15 | Power LED & | J20 |
| | | keylock | |
|------------------+----------+-------------------+----------|
| Turbo switch | J17 | 32-bit external | SL1 |
| | | memory card | |
|------------------+----------+-------------------+----------|
| Turbo LED | J18 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank | Bank | Bank 2 | Bank 2A | Bank 3 | Bank |
| | 0 | 1 | | | | 3A |
|------+-------+-------+---------+---------+--------+--------|
| 1MB | (4) | NONE | NONE | NONE | NONE | NONE |
| | 256K | | | | | |
| | x 9 | | | | | |
|------+-------+-------+---------+---------+--------+--------|
| 2MB | (4) | (4) | NONE | NONE | NONE | NONE |
| | 256K | 256K | | | | |
| | x 9 | x 9 | | | | |
|------+-------+-------+---------+---------+--------+--------|
| 4MB | (4) | NONE | NONE | NONE | NONE | NONE |
| | 1M x | | | | | |
| | 9 | | | | | |
|------+-------+-------+---------+---------+--------+--------|
| 4MB | (4) | (4) | (8) | (4) | (8) | (4) |
| | 256K | 256K | 44256 | 41256 | 44256 | 41256 |
| | x 9 | x 9 | | | | |
|------+-------+-------+---------+---------+--------+--------|
| 8MB | (4) | (4) | NONE | NONE | NONE | NONE |
| | 1M x | 1M x | | | | |
| | 9 | 9 | | | | |
|------+-------+-------+---------+---------+--------+--------|
| 10MB | (4) | (4) | (8) | (4) | (8) | (4) |
| | 1M x | 1M x | 44256 | 41256 | 44256 | 41256 |
| | 9 | 9 | | | | |
|------+-------+-------+---------+---------+--------+--------|
| 16MB | (4) | (4) | (8) | (4) | (8) | (4) |
| | 1M x | 1M x | 441000 | 411000 | 441000 | 411000 |
| | 9 | 9 | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|-----------+----------------+---------------+---------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
|------------------------------------------------------------|
| Note: Cache is factory installed and is not configurable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| NPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | J24 | J25 |
|--------------------+-------------------+-------------------|
| Asynchronous | Closed | Closed |
|--------------------+-------------------+-------------------|
| Synchronous | Open | Open |
+------------------------------------------------------------+