AMERICAN DIGICOM CORPORATION
DIGIS-486E
Processor | 80486SX/80487SX/80486DX |
Processor Speed | 20/25/33/50MHz |
Chip Set | OPTI |
Max. Onboard DRAM | 128MB |
SRAM Cache | 64/128/256/512KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | None |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | J4 | Reset switch | S9 |
Power LED & keylock | J5 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | EISA cards configured as ISA | JP1 | Closed |
EISA cards configured as EISA | JP1 | Open | |
» | I/O bus speed select synchronous with chipset | JP4 | pins 1 & 2 closed |
I/O bus speed select 8MHz | JP4 | pins 2 & 3 closed | |
» | Monitor type select color | JP5 | Closed |
Monitor type select monochrome | JP5 | Open | |
» | Reserved for future applications | JP7 | N/A |
» | Clock frequency select single | JP9 | pins 1 & 2 closed |
Clock frequency select double | JP9 | pins 2 & 3 closed |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
4MB | (4) 1M x 9 | NONE |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
20MB | (4) 1M x 9 | (4) 4M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
64MB | (4) 16M x 9 | NONE |
128MB | (4) 16M x 9 | (4) 16M x 9 |
CACHE CONFIGURATION | ||||||
Size | Bank 0 | Bank 1 | U51 | U52 | U53 | U66 |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 64K x 1 | (1) 8K x 8 | NONE | (1) 16K x 1 |
128KB | (4) 32K x 8 | NONE | (1) 64K x 1 | (1) 8K x 8 | NONE | (1) 16K x 1 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 64K x 1 | (1) 8K x 8 | (1) 8K x 8 | (1) 16K x 1 |
512KB | (4) 128K x 8 | NONE | (1) 64K x 1 | (1) 32K x 8 | NONE | (1) 64K x 1 |
CACHE JUMPER CONFIGURATION | ||||||
Size | JP11 | JP12 | JP13 | JP14 | JP15 | JP16 |
64KB | Open | Open | Open | Open | Open | Open |
128KB | Open | Open | Closed | Open | Closed | Open |
256KB | Open | Closed | Closed | Closed | Closed | Open |
512KB | Closed | Closed | Closed | Closed | Closed | Closed |
CPU TYPE CONFIGURATION | ||
Type | JP8 | JP10 |
80486SX | pins 2 & 3 closed | open |
80487SX | pins 1 & 2, 3 & 4 closed | pins 1 & 2 closed |
80486DX | pins 1 & 2, 3 & 4 closed | pins 2 & 3 closed |
CPU SPEED CONFIGURATION | ||
Speed | JP2 | JP3 |
25MHz | Open | Open |
33MHz | Closed | Open |
40MHz | Open | Closed |
50MHz | Closed | Closed |