ACER, INC.
1120SX
| Processor | 80386SX | 
| Processor Speed | 20MHz | 
| Chip Set | Unidentified | 
| Max. Onboard DRAM | 8MB | 
| Cache | None | 
| BIOS | AMI | 
| Dimensions | 330mm x 218mm | 
| I/O Options | Parallel port, serial ports (2), PS/2 mouse interface, VGA port, riser slot | 
| NPU Options | 80387SX | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Serial port 1 | CN1 | Keyboard interface | J2 | 
| Serial port 2 | CN2 | PS/2 mouse interface | J3 | 
| Parallel port | CN3 | Turbo LED | J4 | 
| Video board port | CN4 | Riser slot | SL1 | 
| Reset switch | J5 | ||
| USER CONFIGURABLE SETTINGS | |||
| Function | Jumper | Position | |
| » | Key lock enabled | J1 | Open | 
| Key lock disabled | J1 | Closed | |
| » | On board VGA enabled | J5 | Closed | 
| On board VGA disabled | J5 | Open | |
| » | Password enabled | J6 | pins 1 & 2 closed | 
| Password disabled | J6 | pins 2 & 3 closed | |
| » | All disabled | J7 | Open | 
| 0 wait state enabled | J7 | pins 1 & 2 closed | |
| IRQ9 enabled | J7 | pins 2 & 3 closed | |
| » | All disabled | J8 | Open | 
| IOCS16 enabled | J8 | pins 1 & 2 closed | |
| Refresh enabled | J8 | pins 2 & 3 closed | |
| DRAM CONFIGURATION | ||||
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | 
| 2MB | 2MB | NONE | NONE | NONE | 
| 4MB | 2MB | (2) 1M x 9 | NONE | NONE | 
| 8MB | 2MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | 
| Note: Bank 0 is factory installed and is not configurable. | ||||