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# OLIVETTI
M4-60/62/64/65/66
Processor 80486SX/80487SX/80486DX/80486DX2
Processor 25/33/50(internal)/50/66(internal)MHz
Speed
Chip Set Unidentified
Max. Onboard 36MB
DRAM
Cache None
BIOS Unidentified
Dimensions 330mm x 218mm
I/O Options Floppy drive interface, IDE interface, parallel
port, PS/2 mouse port, serial ports (2), VGA port
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+----------+--------------------+----------|
| VGA port | CN1 | CD ROM interface | CN6 |
|-----------------+----------+--------------------+----------|
| Serial port 2 | CN2 | IDE interface | CN7 |
|-----------------+----------+--------------------+----------|
| Serial port 1 | CN3 | Floppy drive | CN8 |
| | | interface | |
|-----------------+----------+--------------------+----------|
| Parallel port | CN4 | Riser Card | SL1 |
|-----------------+----------+--------------------+----------|
| PS/2 mouse port | CN5 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | CMOS memory normal operation | J12 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | J12 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | IRQ12 enabled for PS/2 mouse | J13 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | IRQ12 disabled | J13 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Serial port 1 bootstrapping | J21 | pins 2 & 3 |
| | enabled | | closed |
|---+----------------------------------+--------+------------|
| | Serial port 1 bootstrapping | J21 | pins 1 & 2 |
| | disabled | | closed |
|---+----------------------------------+--------+------------|
| » | Serial port 2 bootstrapping | J25 | pins 2 & 3 |
| | enabled | | closed |
|---+----------------------------------+--------+------------|
| | Serial port 2 bootstrapping | J25 | pins 1 & 2 |
| | disabled | | closed |
|---+----------------------------------+--------+------------|
| » | Floppy drive write enabled | J33 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Floppy drive write disabled | J33 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | On board VGA enabled | J45 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | On board VGA disabled | J45 | pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|-----------------+------------------+-----------------------|
| 4MB | 4MB | NONE |
|-----------------+------------------+-----------------------|
| 8MB | 4MB | (1) 1M x 36 |
|-----------------+------------------+-----------------------|
| 12MB | 4MB | (1) 2M x 36 |
|-----------------+------------------+-----------------------|
| 20MB | 4MB | (1) 4M x 36 |
|-----------------+------------------+-----------------------|
| 36MB | 4MB | (1) 8M x 36 |
|------------------------------------------------------------|
| Note: Bank 0 is factory installed and is not configurable. |
| The location is unknown. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 512KB | (1) 411000 | NONE |
|------------------+--------------------+--------------------|
| 1MB | (1) 411000 | (1) 411000 |
+------------------------------------------------------------+