UNIDENTIFIED
ISA-486
Processor | 80486SX/80487SX/80486DX/ODP486SX/80486DX2 |
Processor Speed | 16/20/25/33/40/50(internal)/50/66(internal)MHz |
Chip Set | Unidentified |
Max. Onboard DRAM | 32MB |
Cache | 64/128/256KB |
BIOS | AMI |
Dimensions | 254mm x 220mm |
I/O Options | 32-bit VESA local bus slots (2) |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Turbo LED | JP10 | External battery | JP17 |
Speaker | JP11 | Turbo switch | JP32 |
Power LED & keylock | JP13 | 32-bit VESA local bus slots | SL1 & SL2 |
Reset switch | JP15 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Factory configured - do not alter | ID2 | Closed |
» | Factory configured - do not alter | JP1 | Open |
» | Factory configured - do not alter | JP9 | pins 1 & 2 closed |
» | Monitor type select color | JP12 | Closed |
Monitor type select monochrome | JP12 | Open | |
» | CMOS memory normal operation | JP16 | pins 1 & 2 closed |
CMOS memory clear | JP16 | pins 2 & 3 closed | |
» | Factory configured - do not alter | JP29 | pins 1 & 2 closed |
» | Factory configured - do not alter | JP100 | Open |
» | Factory configured - do not alter | JP101 | Open |
» | Factory configured - do not alter | JP102 | pins 2 & 3 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 |
5MB | (4) 256K x 9 | (4) 1M x 9 |
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 |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | |||
Size | JP6 | JP7 | JP8 |
64KB | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed |
128KB | pins 2 & 3 closed | pins 1 & 2 closed | pins 2 & 3 closed |
256KB | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |
CPU TYPE CONFIGURATION | ||||
Type | JP2 | JP3 | JP4 | JP5 |
80486SX | pins 1 & 2 closed | Open | Open | Open |
80487SX | pins 2 & 3 closed | Closed | pins 1 & 2 closed | Closed |
80486DX/DX2 | pins 2 & 3 closed | Closed | pins 2 & 3 closed | Open |
CPU SPEED CONFIGURATION | |
Speed | JP30 |
16MHz | pins 2 & 3 closed |
20MHz | pins 2 & 3 closed |
25MHz | pins 2 & 3 closed |
33MHz | pins 1 & 2 closed |
50iMHz | pins 2 & 3 closed |
50MHz | pins 1 & 2 closed |
66iMHz | pins 1 & 2 closed |
BUS SPEED CONFIGURATION | |
CPU speed | ID3 |
<= 33MHz | Open |
> 33MHz | Closed |