ABC A3866
ABC COMPUTER COMPANY, LTD.
A3866
| Processor |
80386DX |
| Processor Speed |
33/40MHz |
| Chip Set |
OPTI |
| Max. Onboard DRAM |
20MB |
| Cache |
64/128/256KB |
| BIOS |
AMI |
| Dimensions |
330mm x 218mm |
| I/O Options |
32-bit external memory card slot |
| NPU Options |
80387/3167 |
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location |
|
External battery |
J10 |
32-bit external memory card |
S1 |
|
Power LED & keylock |
J23 |
Reset switch |
SW1 |
|
Speaker |
J24 |
Turbo switch |
SW2 |
|
Turbo LED |
JP4 |
||
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper | Position | |
| � | Monitor type select color |
JP1 |
Closed |
|
Monitor type select monochrome |
JP1 |
Open | |
| � | CMOS memory normal operation |
JP2 |
pins 2 & 3 closed |
|
CMOS memory clear |
JP2 |
pins 1 & 2 closed | |
| 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 |
|
4MB |
(4) 1M x 9 |
NONE |
NONE |
NONE |
|
5MB |
(4) 256K x 9 |
(4) 1 M x 9 |
NONE |
NONE |
|
6MB |
(4) 256K x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
10MB |
(4) 256K x 9 |
(4) 256K 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 |
|
16MB |
(4) 4M x 9 |
NONE |
NONE |
NONE |
|
17MB |
(4) 4M x 9 |
(4) 256K x 9 |
NONE |
NONE |
|
20MB |
(4) 4M x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
24MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 4M x 9 |
NONE |
|
40MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
|
64MB |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
(4) 4M x 9 |
|
Note:Banks 2 & 3 are used when a 32-bit external memory card is installed. | ||||
| CACHE CONFIGURATION | |||
| Size | Bank 0 | Bank 1 | Tag |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(3) 16K x 4 |
|
128KB |
(4) 32K x 8 |
NONE |
(3) 16K x 4 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(3) 16K x 4 |
| CACHE JUMPER CONFIGURATION | |||||
| Size | JP5 | JP6 | JP7 | JP8 | JP9 |
|
64KB |
2 & 3 |
1 & 2 |
1 & 2 |
Open |
2 & 3 |
|
128KB |
2 & 3 |
1 & 2 |
2 & 3 |
Closed |
2 & 3 |
|
256KB |
2 & 3 |
2 & 3 |
2 & 3 |
Closed |
1 & 2 |
|
Note: Pins designated should be in the closed position. | |||||
