COMPUTREND SYSTEMS, INC.
CONTAQ-486
Processor | 80486SX/80487SX/80486DX |
Processor Speed | 16/20/25/33/50MHz |
Chip Set | CONTAQ |
Max. Onboard DRAM | 32MB |
Cache | 64/256KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | None |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Keylock | J3 pins 1 & 2 | Turbo switch | J3 pins 15 - 17 |
Power LED | J3 pins 3 - 5 | Reset switch | J3 19 & 20 |
Speaker | J3 pins 7 - 10 | Auxiliary keyboard | J4 |
Turbo LED | J3 pins 12 & 13 | External battery | JP2 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Monitor type select color | JP1 | Closed |
Monitor type select monochrome | JP1 | 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) 1M x 9 | (4) 256K x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
17MB | (4) 4M x 9 | (4) 256K x 9 |
20MB | (4) 4M x 9 | (4) 1M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
CACHE CONFIGURATION | ||
Size | Bank 0 | TAG |
64KB | (8) 8K x 8 | (1) 8K x 8 |
256KB | (8) 32K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | |
Size | JP8 |
64KB | pins 1A & 2A closed, pins 3A & 4A closed, pins 1C & 2C closed, and pins 3C & 4C closed. |
256KB | pins 1B & 2B closed, pins 3B & 4B closed, pins 1D & 2D closed, and pins 3D & 4D closed. |
CPU TYPE CONFIGURATION | |
Type | Jumper block JP7 |
80486DX | pins 4A & 4B closed, pins 4C & 4D closed, pins 1A & 1B closed, and pins 1C & 1D closed. |
80487SX | pins 4A & 4B closed, pins 4C & 4D closed, pins 2A & 2B closed, and pins 2C & 2D closed. |
80486SX | pins 1B & 2B closed, pins 3B & 4B closed, pins 1D & 2D closed, and pins 3D & 4D closed. |
CPU SPEED CONFIGURATION | |||||
CPU Speed | OSC1 | JP3 | JP5 | JP6 | JP9 |
16MHz | 32MHz | 2 & 3 | Open | Open | 1 & 2 |
20MHz | 40MHz | 1 & 2 | Open | Open | 1 & 2 |
25MHz | 25MHz | 1 & 2 | Closed | Open | 2 & 3 |
33MHz | 33MHz | 1 & 2 | Open | Closed | 2 & 3 |
50MHz | 50MHz | 1 & 2 | Closed | Closed | 2 & 3 |
Note: Pins designated should be in the closed position. |