OLIVETTI
M386/25 (BA247, BA255, BA263)
|
Processor |
80386DX |
|
Processor Speed |
25MHz |
|
Chip Set |
Unidentified |
|
Maximum Onboard Memory |
18MB (8MB on external memory card) |
|
Cache |
32KB |
|
BIOS |
Unidentified |
|
Dimensions |
355mm x 305mm |
|
I/O Options |
External memory card, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial port, VGA port |
|
NPU Options |
80387DX/3167 |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
PS/2 mouse port |
CN1 |
Floppy drive interface |
CN5 |
|
Parallel port |
CN2 |
IDE interface |
CN6 |
|
Serial port |
CN3 |
External memory card |
SL1 |
|
VGA port |
CN4 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Setting |
Label |
Position | |
|
|
Factory configured - do not alter |
J14 |
Closed |
|
|
CMOS memory normal operation |
J27 |
Open |
|
CMOS memory clear |
J27 |
Closed | |
|
|
Cache controller normal operation |
J28 |
Open |
|
Cache controller using different model that 82385 |
J28 |
Closed | |
|
|
NPU running at CPU speed |
J30 |
Open |
|
NPU running at oscillator speed |
J30 |
Closed | |
|
|
BIOS EPROM enabled |
J32 |
Open |
|
BIOS EPROM disabled |
J32 |
Closed | |
|
DRAM | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
2MB |
1MB |
1MB |
None |
None |
|
3MB |
1MB |
1MB |
(4) 256K x 9 |
None |
|
4MB |
1MB |
1MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
6MB |
1MB |
1MB |
(4) 1M x 9 |
None |
|
7MB |
1MB |
1MB |
(4) 256K x 9 |
(4) 1M x 9 |
|
7MB |
1MB |
1MB |
(4) 1M x 9 |
(4) 256K x 9 |
|
10MB |
1MB |
1MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
CACHE SIZE |
|
Note: 32KB cache is factory installed and is not configurable. |
|
SERIAL PORT | ||
|
Setting |
J11 |
J12 |
|
Normal operation |
Open |
Open |
|
Indicated RS232 threshold level |
Closed |
Closed |