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
[Image]
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 pins 1 & 2 pins 1 & 2 closed
closed closed
256KB pins 1 & 2 pins 2 & 3 pins 2 & 3 closed
closed 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