Abit 386 AT3
ABIT COMPUTER CORPORATION
386 AT3
| Processor |
AMD386DX/80386DX/CX486DLC/Ti486DLC/Ti486SXL2 |
| Processor Speed |
33/40MHz |
| Chip Set |
ALI |
| Max. Onboard DRAM |
192MB |
| Cache |
32/128KB |
| BIOS |
AMI/AWARD |
| Dimensions |
230mm x 218mm |
| I/O Options |
Green PC feature connector |
| NPU Options |
80387DX |
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location |
|
External battery |
JP3 |
Speaker |
JP11 |
|
Turbo switch |
JP8 |
Power LED & keylock |
JP12 |
|
Turbo LED |
JP9 |
Green PC feature connector |
JP15 |
|
Reset switch |
JP10 |
||
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper/Switch | Position | |
|
� |
CMOS normal operation |
JP2 |
pins 1 & 2 |
|
CMOS memory clear |
JP2 |
pins 2 & 3 | |
|
� |
CPU clock select 33MHz |
JP13 |
pins 1 & 2, 3 & 4 |
|
CPU clock select 40MHz |
JP13 |
pins 5 & 6 | |
|
� |
128KB cache enabled |
JP16 |
Closed |
|
32KB cache enabled |
JP16 |
Open | |
|
Note:Pins designated are in the closed position. | |||
| DRAM CONFIGURATION | ||
| Size | Bank 0 | Bank 1/2 |
|
1MB |
(4) 256K x 9 |
NONE |
|
2MB |
(4) 256K x 9 |
(1) 256K x 36 |
|
4MB |
(4) 1M x 9 |
NONE |
|
5MB |
(4) 1M x 9 |
(1) 256K x 36 |
|
8MB |
(4) 1M x 9 |
(1) 1M x 36 |
|
16MB |
(4) 4M x 9 |
NONE |
|
17MB |
(4) 4M x 9 |
(1) 256K x 36 |
|
20MB |
(4) 4M x 9 |
(1) 1M x 36 |
|
32MB |
(4) 4M x 9 |
(1) 4M x 36 |
|
64MB |
(4) 16M x 9 |
NONE |
|
192MB |
(4) 16M x 9 |
(1) 32M x 36 |
| CACHE CONFIGURATION | ||
| Size | Bank 0 | TAG |
|
32KB |
(4) 8K x 8 |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
(1) 16K x 8 |
| CPU TYPE CONFIGURATION | ||
| CPU Type | JP1 | JP5 |
|
80386DX |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
80486DLC |
pins 2 & 3 closed |
pins 2 & 3 closed |
| GREEN FEATURE CONNECTOR CONFIGURATION | |
| Pin | Function |
|
1 |
HSYNC |
|
2 |
Ground |
|
3 |
VSYNC |
|
4 |
Ground |
|
5 |
ENVEDIO |
|
6 |
Ground |
|
7 |
Monitor AC power |
|
8 |
Ground |
