COMPAQ COMPUTER CORPORATION
DESKPRO 386 (TYPE 'A')
|
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 |
|
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 | |
|
NPU type select 4MHz |
SW1/3 |
On | |
|
NPU 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 | |
|
Factory configured - do not alter |
SW1/7 |
On | |
|
Factory configured - do not alter |
SW1/8 |
On | |
|
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 CONFIGURATION | ||||
|
Size |
Base Memory |
Ext. Memory |
1MBExp. 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. | ||||