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 |