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# OLIVETTI
M400-60 (BA334)
Processor 80486SX/80487SX/80486DX2
Processor Speed 25/33/50(internal)/66(internal)MHz
Chip Set Unidentified
Video Chip Set Unidentified
Maximum Onboard 52MB
Memory
Maximum Video Unidentified
Memory
Cache None
BIOS Unidentified
Dimensions 355mm x 304mm
I/O Options Floppy drive interface, IDE interface,
parallel port, PS/2 mouse port, serial port,
feature connector, VGA port, riser slot,
console connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|-------------------+-------+------------------------+-------|
| PS/2 mouse port | CN1 | IDE interface | CN6 |
|-------------------+-------+------------------------+-------|
| Parallel port | CN2 | Floppy drive interface | CN7 |
|-------------------+-------+------------------------+-------|
| Serial port | CN3 | Console connector | CN8 |
|-------------------+-------+------------------------+-------|
| VGA port | CN4 | Riser slot | SL1 |
|-------------------+-------+------------------------+-------|
| Feature connector | CN5 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|-----------------------------------------+-------+----------|
| » | ROM BIOS enabled | J11 | Closed |
|---+-------------------------------------+-------+----------|
| | ROM BIOS disabled | J11 | Open |
|---+-------------------------------------+-------+----------|
| » | Floppy drive oscillator enabled | J13 | Closed |
|---+-------------------------------------+-------+----------|
| | Floppy drive oscillator disabled | J13 | Open |
|---+-------------------------------------+-------+----------|
| » | CMOS memory normal operation | J15 | Open |
|---+-------------------------------------+-------+----------|
| | CMOS memory clear | J15 | Closed |
|---+-------------------------------------+-------+----------|
| » | Hard drives installed 1 | J16 | Closed |
|---+-------------------------------------+-------+----------|
| | Hard drives installed 2 | J16 | Open |
|---+-------------------------------------+-------+----------|
| » | Serial port enabled | SW1/1 | On |
|---+-------------------------------------+-------+----------|
| | Serial port disabled | SW1/1 | Off |
|---+-------------------------------------+-------+----------|
| » | Factory configured - do not alter | SW1/2 | On |
|---+-------------------------------------+-------+----------|
| » | Floppy drive write protect disabled | SW1/3 | On |
|---+-------------------------------------+-------+----------|
| | Floppy drive write protect enabled | SW1/3 | Off |
|---+-------------------------------------+-------+----------|
| » | Factory configured - do not alter | SW1/4 | N/A |
|------------------------------------------------------------|
| Note: The location of pin 1 on SW1 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|--------+---------+-------------+-------------+-------------|
| 4MB | 4MB | None | None | None |
|--------+---------+-------------+-------------+-------------|
| 8MB | 4MB | (4) 1M x 9 | None | None |
|--------+---------+-------------+-------------+-------------|
| 12MB | 4MB | (4) 1M x 9 | (4) 1M x 9 | None |
|--------+---------+-------------+-------------+-------------|
| 16MB | 4MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
|--------+---------+-------------+-------------+-------------|
| 20MB | 4MB | (4) 4M x 9 | None | None |
|--------+---------+-------------+-------------+-------------|
| 24MB | 4MB | (4) 1M x 9 | (4) 4M x 9 | None |
|--------+---------+-------------+-------------+-------------|
| 36MB | 4MB | (4) 4M x 9 | (4) 4M x 9 | None |
|--------+---------+-------------+-------------+-------------|
| 40MB | 4MB | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 |
|--------+---------+-------------+-------------+-------------|
| 40MB | 4MB | (4) 4M x 9 | (4) 4M x 9 | (4) 1M x 9 |
|--------+---------+-------------+-------------+-------------|
| 52MB | 4MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
|------------------------------------------------------------|
| Note: Bank 0 is factory installed and is not configurable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Note: The size and chip type of the video memory is |
| unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Setting | J18 | J19 | J20 |
|-----------+-------------------+--------+-------------------|
| 80486SX | Open | Open | Pins 2 & 3 closed |
|-----------+-------------------+--------+-------------------|
| 80487SX | Pins 2 & 3 closed | Closed | Pins 1 & 2 closed |
|-----------+-------------------+--------+-------------------|
| 80486DX2 | Pins 1 & 2 closed | Closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | J21 |
|----------------------------+-------------------------------|
| 25MHz | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 33MHz | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 50iMHz | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 66iMHz | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RING INDICATOR/INPUT SIGNAL CONFIGURATION |
|------------------------------------------------------------|
| Setting | J7 | J8 |
|-------------------------+-----------------+----------------|
| | FAIL SAFE enabled | Closed | Closed |
|----+--------------------+-----------------+----------------|
| » | FAIL SAFE disabled | Open | Open |
+------------------------------------------------------------+