MODULAR CIRCUIT TECHNOLOGY
MCT-M486EV-66
Processor | 80486SX/80486DX/80486DX2/Pentium Overdrive |
Processor Speed | 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 | 32-bit VESA local bus slots (2) |
NPU Options | None |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Turbo LED | J3 | Speaker | J6 |
Turbo switch | J4 | Power LED & keylock | J7 |
Reset switch | J5 | 32-bit VESA local bus slots | SL1 & SL2 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Monitor type select monochrome | JP14 | Closed |
Monitor type select color | JP14 | Open | |
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 |
5MB | (4) 1M x 9 | (4) 256K x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 1M x 9 | NONE |
17MB | (4) 256K x 9 | (4) 1M x 9 |
17MB | (4) 4M x 9 | (4) 256K x 9 |
20MB | (4) 1M x 9 | (4) 4M x 9 |
20MB | (4) 4M x 9 | (4) 1M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
64MB | (4) 16M x 9 | NONE |
65MB | (4) 256K x 9 | (4) 16M x 9 |
65MB | (4) 16M x 9 | (4) 256K x 9 |
68MB | (4) 1M x 9 | (4) 16M x 9 |
68MB | (4) 16M x 9 | (4) 1M x 9 |
80MB | (4) 4M x 9 | (4) 16M x 9 |
80MB | (4) 16M x 9 | (4) 4M x 9 |
128MB | (4) 16M x 9 | (4) 16M x 9 |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
64KB | (4) 8K x 8 | (4) 8K x 8 | (4) 4K x 4 |
128KB | (4) 32K x 8 | NONE | (4) 4K x 4 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (4) 4K x 4 |
CACHE JUMPER CONFIGURATION | ||||||
Size | JP3 | JP4 | JP10 | JP11 | JP12 | JP13 |
64KB | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 |
128KB | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 |
256KB | 2 & 3 | 2 & 3 | 2 & 3 | 4 & 5 | 2 & 3 | 2 & 3 |
Note: Pins designated should be in the closed position. | ||||||
CPU TYPE CONFIGURATION | ||
Type | JP8 | JP9 |
80486SX | pins 2 & 3 closed | Open |
80486DX | pins 1 & 2, 3 & 4 closed | pins 1 & 2 closed |
80486DX2 | pins 1 & 2, 3 & 4 closed | pins 1 & 2 closed |
Pentium Overdrive | pins 1 & 2, 3 & 4 closed | pins 2 & 3 closed |
VESA WAIT STATE CONFIGURATION | |
Wait states | JP6 |
0 wait states | Open |
1 wait state | Closed |
BUS SPEED CONFIGURATION | |
CPU speed | JP5 |
<= 33MHz | Open |
> 33MHz | Closed |