ABIT COMPUTER CORPORATION
486 EISA-AE4
Processor | 80486SX/80487SX/80486DX/80486DX2 |
Processor Speed | 22/25/33/50(internal)/50/66(internal)MHz |
Chip Set | SIS |
Max. Onboard DRAM | 128MB |
Cache | 64/128/256KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | None |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Power LED | JP8 | Reset switch | JP18 |
Turbo LED | JP16 | Speaker | JP19 |
Turbo switch | JP17 | Power LED & keylock | JP22 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Factory configured - do not alter | JP3 | Open |
» | Factory configured - do not alter | JP4 | Open |
» | Factory configured - do not alter | JP9 | pins 1 & 2 closed |
» | Factory configured - do not alter | JP10 | pins 1 & 2 closed |
» | Factory configured - do not alter | JP11 | pins 1 & 2 closed |
» | Factory configured - do not alter | JP21 | pins 1 & 2 closed |
» | Factory configured - do not alter | JP23 | Closed |
» | Monitor type select color | JP24 | Open |
Monitor type select monochrome | JP24 | Closed |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
1MB | (4) 256K x 9 | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 |
4MB | (4) 1M x 9 | NONE |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
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 | TAG (U20 and U24) |
64KB | (4) 8K x 8 | (4) 8K x 8 | (2) 16K x 4 |
128KB | (4) 32K x 8 | NONE | (2) 16K x 4 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (2) 16K x 4 |
CACHE JUMPER CONFIGURATION | ||||
Size | JP1 | JP2 | JP12 | JP13 |
64KB | pins 2 & 3 closed | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |
128KB | pins 1 & 2 closed | pins 2 & 3 closed | pins 1 & 2 closed | pins 2 & 3 closed |
256KB | pins 4 & 5 closed | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed |
CPU TYPE CONFIGURATION | |||
Type | JP5 | JP7 | JP15 |
80486SX | Open | pins 2 & 3 closed | Open |
80487SX | pins 2 & 3 closed | pins 1 & 2 closed | Closed |
80486DX | pins 1 & 2 closed | pins 1 & 2 closed | Closed |
80486DX2 | pins 1 & 2 closed | pins 1 & 2 closed | Closed |