COMPAQ COMPUTER CORPORATION
DESKPRO 386 (TYPE 'B')
Processor | 80386DX |
Processor Speed | 16MHz |
Chip Set | ETEQ |
Max. Onboard DRAM | 2MB (on system memory card) |
Cache | None |
BIOS | Compaq |
Dimensions | 330mm x 218mm |
I/O Options | Proprietary system memory card slot, proprietary external memory card slot (on system memory card) |
NPU Options | 80287/80387 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Fixed drive power | J109 | Proprietary keyboard plug | J116 |
Tape backup power | J110 | Main power | J117 |
Floppy drive power | J111 | External battery | J118 |
Floppy drive power | J112 | Keylock | J119 |
Monitor power | J113 | Proprietary system memory card | S1 |
Speaker | J115 |
USER CONFIGURABLE SETTINGS | |||
Function | Switch | Position | |
» | Fail-safe timer enabled | SW1/1 | On |
Fail-safe timer disabled | SW1/1 | Off | |
» | NPU enabled | SW1/2 | On |
NPU disabled | SW1/2 | Off | |
» | 80287 type select 4MHz | SW1/3 | On |
80287 type select 8MHz | SW1/3 | Off | |
» | CPU speed at boot automatic | SW1/4 | On |
» | CPU speed at boot high | SW1/4 | Off |
» | Factory configured - do not alter | SW1/5 | Off |
» | Monitor type select dual-mode/color | SW1/6 | On |
Monitor type select monochrome other than Compaq | SW1/6 | Off | |
» | NPU type select 80287 | SW1/7 | On |
NPU type select 80387 | SW1/7 | Off | |
» | Factory configured - do not alter | SW1/8 | On |
Note:SW1/3 has no effect if SW1/7 is configured for an 80387 NPU. |
CONNECTIONS | |
Purpose | Location |
Proprietary external memory card | S1 & S2 |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
1MB | (36) 41256 | NONE |
2MB | (36) 41256 | (36) 41256 |
DRAM JUMPER CONFIGURATION | ||||
Size | Base Memory | Exp. Memory | 1MBExt. Memory | J1 |
1MB | 256KB | 768KB | disabled | pins 1 & 2, 4 & 5, 7 & 8 closed |
1MB | 512KB | 512KB | disabled | pins 2 & 3, 4 & 5, 7 & 8 closed |
1MB | 640KB | 384KB | disabled | pins 2 & 3, 5 & 6, 7 & 8 closed |
2MB | 256KB | 768KB | enabled | pins 1 & 2, 4 & 5, 8 & 9 closed |
2MB | 512KB | 512KB | enabled | pins 2 & 3, 4 & 5, 8 & 9 closed |
2MB | 640KB | 384KB | enabled | pins 2 & 3, 5 & 6, 8 & 9 closed |
Note:Jumpers 3 & 4 and 6 & 7 should never be closed as serious damage to the system may result. |