BEC COMPUTER ENTERPRISE
80486AT (Ver. 1.0)
Processor | 80486DX |
Processor Speed | 25/33MHz |
Chip Set | None |
Max. Onboard DRAM | 16MB |
SRAM Cache | 64/256KB |
BIOS | AMI |
Dimensions | 355mm x 304mm |
I/O Options | None |
NPU Options | 4167 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Reset switch | W1 | Power LED & keylock | W5 |
Turbo switch | W3 | Speaker | W10 |
Turbo LED | W4 | External battery | W11 |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (4) 256K x 9 | NONE | NONE | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 | NONE | NONE |
3MB | (4) 256K x 9 | (4) 256K x 9 | (4) 256K x 9 | NONE |
4MB | (4) 256K x 9 | (4) 256K x 9 | (4) 256K x 9 | (4) 256K x 9 |
4MB | (4) 1M x 9 | NONE | NONE | NONE |
5MB | (4) 256K x 9 | (4) 1M x 9 | NONE | NONE |
6MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | NONE |
7MB | (4) 256K x 9 | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
9MB | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
10MB | (4) 256K x 9 | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 |
12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
13MB | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
CPU SWITCH (SW2) CONFIGURATION | ||||
Size | SW2/switch 1 | SW2/switch 2 | SW2/switch 3 | SW2/switch 4 |
1MB | open | open | open | open |
2MB | closed | open | open | open |
3MB | open | closed | open | open |
4MB | closed | closed | open | open |
4MB | open | open | closed | open |
5MB | open | open | closed | closed |
6MB | open | closed | open | closed |
7MB | closed | open | open | closed |
8MB | closed | open | closed | open |
9MB | open | closed | closed | closed |
10MB | closed | closed | open | closed |
12MB | open | closed | closed | open |
13MB | closed | closed | closed | closed |
16MB | closed | closed | closed | open |
SRAM JUMPER CONFIGURATION | |||
Size | Jumper W6 | Jumper W8 | Jumper W9 |
64KB | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |
256KB | pins 1 & 2 closed | pins 2 & 3 closed | pins 2 & 3 closed |
SRAM CONFIGURATION | ||
Size | Bank 0 | TAG |
64KB | (8) 8K x 8 | (2) 16K x 4 |
256KB | (8) 32K x 8 | (2) 16K x 4 |