MONOLITHIC SYSTEMS, INC. (COLORADO MSI)
SBC386IE PISA SINGLE BOARD
Processor | 80386DX |
Processor Speed | 25/33/40MHz |
Chip Set | C & T PEAK DM |
Max. Onboard DRAM | 128MB |
Cache | 128KB |
BIOS | AMI |
Dimensions | 339mm x 127mm |
I/O Options | PS/2 mouse port, PS/2 keyboard connector |
NPU Options | 80387 |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
External battery | J3 | Power LED | J9 |
Speaker | J5 | Reset switch | J10 |
Power LED & keylock | J6 | PS/2 keyboard | J14 |
Front panel switches & LEDs | J8 | PS/2 mouse | J15 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Factory configured - do not alter | J1 | pins 1 & 2 closed |
» | Factory configured - do not alter | J2 | Closed |
» | Factory configured - do not alter | J7 | pins 1 & 2 closed |
» | CMOS memory normal operation | J4 | Open |
| CMOS memory clear | J4 | Closed |
» | Monitor type select color | J11 | pins 2 & 3 closed |
| Monitor type select monochrome | J11 | pins 1 & 2 closed |
» | PS/2 mouse disabled (IRQ12 free) | J12 | Open |
| PS/2 mouse enabled at IRQ12 | J12 | Closed |
» | Watchdog timer disabled | J13 | pins 2 & 3 closed |
| Watchdog timer enabled | J13 | pins 1 & 2 closed |
» | DMA signal select active high | J16 | pins 1 & 2 closed |
| DMA signal select active low | J16 | pins 2 & 3 closed |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (1) 256K x 36 | NONE | NONE | NONE |
2MB | (1) 512K x 36 | NONE | NONE | NONE |
3MB | (1) 512K x 36 | (1) 256K x 36 | NONE | NONE |
4MB | (1) 512K x 36 | (1) 512K x 36 | NONE | NONE |
4MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
5MB | (1) 512K x 36 | (1) 512K x 36 | (1) 256K x 36 | NONE |
6MB | (1) 512K x 36 | (1) 512K x 36 | (1) 512K x 36 | NONE |
7MB | (1) 512K x 36 | (1) 512K x 36 | (1) 512K x 36 | (1) 256K x 36 |
8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
8MB | (1) 2M x 36 | NONE | NONE | NONE |
9MB | (1) 2M x 36 | (1) 256K x 36 | NONE | NONE |
10MB | (1) 2M x 36 | (1) 512K x 36 | NONE | NONE |
12MB | (1) 2M x 36 | (1) 512K x 36 | (1) 512K x 36 | NONE |
13MB | (1) 2M x 36 | (1) 512K x 36 | (1) 512K x 36 | (1) 256K x 36 |
16MB | (1) 2M x 36 | (1) 2M x 36 | NONE | NONE |
16MB | (1) 4M x 36 | NONE | NONE | NONE |
17MB | (1) 4M x 36 | (1) 256K x 36 | NONE | NONE |
18MB | (1) 2M x 36 | (1) 2M x 36 | (1) 512K x 36 | NONE |
19MB | (1) 4M x 36 | (1) 512K x 36 | (1) 256K x 36 | NONE |
20MB | (1) 2M x 36 | (1) 2M x 36 | (1) 1M x 36 | NONE |
32MB | (1) 8M x 36 | NONE | NONE | NONE |
40MB | (1) 8M x 36 | (1) 2M x 36 | NONE | NONE |
64MB | (1) 8M x 36 | (1) 8M x 36 | NONE | NONE |
96MB | (1) 8M x 36 | (1) 8M x 36 | (1) 4M x 36 | (1) 4M x 36 |
128MB | (1) 8M x 36 | (1) 8M x 36 | (1) 8M x 36 | (1) 8M x 36 |
Note: These are only some of the possible configurations. Memory must be installed in lower banks first, according to module capacity (highest to lowest). | ||||