IBM CORPORATION
PS/2 MODEL 70 386 16/20RS
Processor | 80386DX |
Processor Speed | 16/20MHz |
Chip Set | IBM |
Max. Onboard DRAM | 6MB |
Cache | None |
BIOS | IBM |
Dimensions | 355mm x 240mm |
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 installed in order to use memory expansion cards. | |||