COMPAQ COMPUTER CORPORATION
Portable II (Model 000324)
Processor | 80286 |
Processor Speed | 8MHz |
Chip Set | None |
Max. Onboard DRAM | 640KB |
Cache | None |
BIOS | Compaq |
Dimensions | 302mm x 256mm |
I/O Options | External memory card |
NPU Options | 80287 |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Drive power | J110 | Main power | J117 |
Speaker | J114 | Internal monitor power | J201 |
USER CONFIGURABLE SETTINGS | |||
Function | Switch | Position | |
| » | Monitor type select Compaq VDU, EGA or RGBI | ED | pins 2 & 3 closed |
Monitor type select monochrome (MDA) | ED | pins 1 & 2 closed | |
| » | CPU speed select 8MHz | ES | pins 1 & 2 closed |
CPU speed select 6MHz | ES | pins 2 & 3 closed | |
| » | Factory configured - do not alter | EM | N/A |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
128KB | (4) 4464 | NONE |
256KB | (4) 4464 | (18) 4164 |
640KB | (4) 4464 | (18) 41256 |
DRAM CONFIGURATION | |||
Memory recognized | MS1 | MS2 | MS3 |
None | Setting G | Setting G | N/A |
256KB | Setting V | Setting G | N/A |
512KB | Setting G | Setting V | N/A |
640KB | Setting V | Setting V | N/A |
1MB | N/A | N/A | Setting V |
1.5MB | N/A | N/A | Setting G |
Note:The settings G and V are silk-screened on the board. The actual pin connections are unknown. 1MB and 1.5MB configurations require the system memory card to be installed. | |||