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# OLIVETTI
M486
Processor 80486DX/i860
Processor Speed 25MHz
Chip Set C & T
Max. Onboard DRAM 64MB
Cache None
BIOS Olivetti
Dimensions 330mm x 218mm
I/O Options Parallel port, PS/2 mouse port, serial port
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| PS/2 mouse port | CN1 | Serial port | CN3 |
|---------------------+----------+----------------+----------|
| Parallel port | CN2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|----------------------------------+-----------+-------------|
| ยป | Password disabled | JP1 | Closed |
|---+------------------------------+-----------+-------------|
| | Password enabled | JP1 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 2MB | (2) 256K x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 4MB | (2) 256K x | (2) 256K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 6MB | (2) 256K x | (2) 256K x | (2) 256K x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 8MB | (2) 256K x | (2) 256K x | (2) 256K x | (2) 256K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | (2) 1M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 10MB | (2) 1M x 36 | (2) 256K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 12MB | (2) 1M x 36 | (2) 256K x | (2) 256K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 14MB | (2) 1M x 36 | (2) 256K x | (2) 256K x | (2) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 18MB | (2) 1M x 36 | (2) 1M x 36 | (2) 256K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 20MB | (2) 1M x 36 | (2) 1M x 36 | (2) 256K x | (2) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 24MB | (2) 1M x 36 | (2) 1M x 36 | (2) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 26MB | (2) 1M x 36 | (2) 1M x 36 | (2) 1M x | (2) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 28MB | (2) 1M x 36 | (2) 1M x 36 | (2) 1M x | (2) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (2) 4M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 34MB | (2) 4M x 36 | (2) 256K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 36MB | (2) 4M x 36 | (2) 256K x | (2) 256K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 38MB | (2) 4M x 36 | (2) 256K x | (2) 256K x | (2) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 44MB | (2) 4M x 36 | (2) 1M x 36 | (2) 256K x | (2) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 48MB | (2) 4M x 36 | (2) 1M x 36 | (2) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 50MB | (2) 4M x 36 | (2) 1M x 36 | (2) 1M x | (2) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 58MB | (2) 4M x 36 | (2) 1M x 36 | (2) 1M x | (2) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 | NONE | NONE |
+------------------------------------------------------------+