IBM CORPORATION
PS/2 MODEL 70 386 16/20FS
| Processor | 80386DX | 
| Processor Speed | 16/20MHz | 
| Chip Set | IBM | 
| Max. Onboard DRAM | 6MB | 
| Cache | None | 
| BIOS | IBM | 
| Dimensions | 355.6mm x 304.8mm | 
| I/O Options | Serial port, parallel port, pointing device connector, proprietary hard/floppy drive controller connector, proprietary 16-bit MCA video adapter slot, VGA port | 
| NPU Options | 80387 | 
 
| CONNECTIONS | |||
| Purpose | Location | Purpose | Location | 
| Battery/speaker | J1 | Keyboard | J5 | 
| Serial port | J2 | Hard/floppy drive | J6 | 
| Parallel port | J3 | Video adapter slot | J7 | 
| Pointing device | J4 | Display connector | J8 | 
| DRAM CONFIGURATION | |||
| Size | Bank 0 | Bank 1 | Bank 2 | 
| 1MB | (1) 256K x 36 | NONE | NONE | 
| 2MB | (1) 256K x 36 | (1) 256K x 36 | NONE | 
| 2MB | (1) 512K x 36 | NONE | NONE | 
| 3MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | 
| 4MB | (1) 512K x 36 | (1) 512K x 36 | NONE | 
| 5MB | (1) 256K x 36 | (1) 512K x 36 | (1) 512K x 36 | 
| 6MB | (1) 512K x 36 | (1) 512K x 36 | (1) 512K x 36 | 
| Notes:SIMMs are a proprietary IBM design, standard 36-bit SIMMs can not be used. Onboard memory does not need to be totally populated in order to use memory expansion cards. | |||