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 |