ADVANCED INTEGRATION RESEARCH, INC.
486SH REV. 3.0
Processor | 80486SX/80487SX/ODP486SX/80486DX/80486DX2/80486DX4/Pentium Overdrive |
Processor Speed | 25/33/40/50(internal)/50/66(internal)MHz |
Chip Set | SIS |
Max. Onboard DRAM | 128MB |
Cache | 128/256/512KB |
BIOS | AMI |
Dimensions | 254mm x 218mm |
I/O Options | 32-bit VESA local bus slots (3) |
NPU Options | None |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Power LED & keylock | J1 | Turbo LED | J4 |
Reset switch | J2 | Turbo switch | J5 |
Speaker | J3 | 32-bit VESA Local bus slots | SL1 - SL3 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | CMOS memory normal operation | JP16 | pins 1 & 2 closed |
CMOS memory clear | JP16 | pins 2 & 3 closed | |
» | Monitor type select VGA/EGA/monochrome | JP17 | Open |
Monitor type select CGA | JP17 | Closed | |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
2MB | (1) 512K x 36 | NONE | NONE | NONE |
4MB | (1) 512K x 36 | (1) 512K x 36 | NONE | NONE |
4MB | (1) 1M x 36 | NONE | NONE | NONE |
6MB | (1) 512K x 36 | (1) 1M x 36 | NONE | NONE |
8MB | (1) 512K x 36 | (1) 512K x 36 | (1) 1M x 36 | NONE |
8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
8MB | (1) 2M x 36 | NONE | NONE | NONE |
12MB | (1) 512K x 36 | (1) 512K x 36 | (1) 1M x 36 | (1) 1M x 36 |
12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
16MB | (1) 2M x 36 | (1) 2M x 36 | NONE | NONE |
16MB | (1) 4M x 36 | NONE | NONE | NONE |
16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
18MB | (1) 512K x 36 | (1) 4M x 36 | NONE | NONE |
20MB | (1) 512K x 36 | (1) 512K x 36 | (1) 4M x 36 | NONE |
20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
24MB | (1) 512K x 36 | (1) 512K x 36 | (1) 1M x 36 | (1) 4M x 36 |
24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 | NONE |
24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 | NONE |
32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 |
32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
32MB | (1) 8M x 36 | NONE | NONE | NONE |
36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 | NONE |
36MB | (1) 1M x 36 | (1) 8M x 36 | NONE | NONE |
36MB | (1) 512K x 36 | (1) 512K x 36 | (1) 4M x 36 | (1) 4M x 36 |
40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 8M x 36 | NONE |
40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 |
48MB | (1) 4M x 36 | (1) 8M x 36 | NONE | NONE |
48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | NONE |
64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 8M x 36 | NONE |
64MB | (1) 16M x 36 | NONE | NONE | NONE |
64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
64MB | (1) 8M x 36 | (1) 8M x 36 | NONE | NONE |
68MB | (1) 1M x 36 | (1) 16M x 36 | NONE | NONE |
68MB | (1) 1M x 36 | (1) 8M x 36 | (1) 8M x 36 | NONE |
72MB | (1) 1M x 36 | (1) 1M x 36 | (1) 16M x 36 | NONE |
72MB | (1) 1M x 36 | (1) 1M x 36 | (1) 8M x 36 | (1) 8M x 36 |
DRAM CONFIGURATION (CON’T) | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
80MB | (1) 4M x 36 | (1) 8M x 36 | (1) 8M x 36 | NONE |
80MB | (1) 4M x 36 | (1) 16M x 36 | NONE | NONE |
96MB | (1) 4M x 36 | (1) 4M x 36 | (1) 16M x 36 | NONE |
96MB | (1) 4M x 36 | (1) 4M x 36 | (1) 8M x 36 | (1) 8M x 36 |
96MB | (1) 8M x 36 | (1) 8M x 36 | (1) 8M x 36 | NONE |
128MB | (1) 8M x 36 | (1) 8M x 36 | (1) 8M x 36 | (1) 8M x 36 |
128MB | (1) 16M x 36 | (1) 16M x 36 | NONE | NONE |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
512KB | (4) 128K x 8 | NONE | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | |||||
Size | JP1 | JP2 | JP3 | JP4 | JP33 |
128KB | 1 & 2 | 1 & 2 | 1 & 2, 3 & 4 | 1 & 2 | 2 & 3 |
256KB | 2 & 3 | 2 & 3 | 2 & 3, 4 & 5 | 1 & 2 | 2 & 3 |
512KB | 1 & 2 | 2 & 3 | 1 & 2, 3 & 4 | 2 & 3 | 2 & 3 |
Note: Pins designated should be in the closed position. | |||||
CPU TYPE CONFIGURATION | ||||
Type | JP8 | JP9 | JP11 | JP36 |
80486SX | pins 2 & 3 closed | Open | Open | pins 1 & 2 closed |
80487SX | pins 1 & 2 closed | Closed | pins 2 & 3 closed | pins 1 & 2 closed |
ODP486SX | pins 1 & 2 closed | Closed | pins 2 & 3 closed | pins 1 & 2 closed |
80486DX/DX2 | pins 1 & 2 closed | Closed | pins 3 & 4 closed | pins 1 & 2 closed |
80486DX4 | pins 1 & 2 closed | Closed | pins 3 & 4 closed | pins 2 & 3 closed |
Pentium Overdrive | pins 1 & 2 closed | Closed | pins 2 & 3 closed | pins 1 & 2 closed |
CPU SPEED CONFIGURATION | ||||
Speed | JP5 | JP6 | JP7 | JP29 |
25MHz | Closed | Closed | Open | pins 1 & 2 closed |
33MHz | Open | Closed | Closed | pins 1 & 2 closed |
40MHz | Closed | Open | Open | pins 2 & 3 closed |
50iMHz | Closed | Closed | Open | pins 1 & 2 closed |
50MHz | Open | Open | Closed | pins 2 & 3 closed |
66iMHz | Open | Closed | Closed | pins 1 & 2 closed |