COMPAQ COMPUTER CORPORATION
Portable (PLUS) (Model 00004-Rev. C or earlier)
|
Processor |
8088 |
|
Processor Speed |
4.77MHz |
|
Chip Set |
None |
|
Max. Onboard DRAM |
640KB |
|
Cache |
None |
|
BIOS |
Compaq |
|
Dimensions |
372mm x 180mm |
|
I/O Options |
None |
|
NPU Options |
8087 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Main power |
P0 |
Speaker |
SPK |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Switch |
Position | |
|
Factory configured - do not alter |
SW1/1 |
Off | |
|
NPU disabled |
SW1/2 |
On | |
|
NPU enabled |
SW1/2 |
Off | |
|
Factory configured - do not alter |
SW1/3 |
Off | |
|
Factory configured - do not alter |
SW1/4 |
Off | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
128KB |
(9) 4164 |
(9) 4164 |
NONE |
NONE |
|
192KB |
(9) 4164 |
(9) 4164 |
(9) 4164 |
NONE |
|
256KB |
(9) 4164 |
(9) 4164 |
(9) 4164 |
(9) 4164 |
|
384KB |
(9) 4164 |
(9) 4164 |
(9) 41256 |
NONE |
|
448KB |
(9) 4164 |
(9) 4164 |
(9) 4164 |
(9) 41256 |
|
512KB |
(9) 41256 |
(9) 41256 |
NONE |
NONE |
|
544KB |
(9) 4164 |
(9) 4164 |
(9) 41256 |
(9) 41256 |
|
640KB |
(9) 4164 |
(9) 4164 |
(9) 41256 |
(9) 41256 |
|
Note:640KB requires ROM version C or later in which case SW2 switch settings are ignored. | ||||
|
DRAM SWITCH CONFIGURATION | ||||||||
|
Size |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
SW2/5 |
SW2/6 |
SW2/7 |
SW2/8 |
|
128KB |
On |
Off |
On |
On |
Off |
Off |
Off |
Off |
|
192KB |
On |
On |
Off |
On |
Off |
Off |
Off |
Off |
|
256KB |
On |
Off |
Off |
On |
Off |
Off |
Off |
Off |
|
320KB |
On |
On |
On |
Off |
Off |
Off |
Off |
Off |
|
384KB |
On |
Off |
On |
Off |
Off |
Off |
Off |
Off |
|
448KB |
On |
On |
Off |
Off |
Off |
Off |
Off |
Off |
|
512KB |
On |
Off |
Off |
Off |
Off |
Off |
Off |
Off |
|
544KB |
Off |
Off |
Off |
Off |
Off |
Off |
Off |
Off |
|
FLOPPY DRIVE CONFIGURATION | ||
|
Drives installed |
SW1/7 |
SW1/8 |
|
1 |
On |
On |
|
2 |
Off |
On |
|
3 |
On |
Off |
|
4 |
Off |
Off |
|
MONITOR CONFIGURATION | ||
|
Type |
SW1/5 |
SW1/6 |
|
80 x 25 color (Compaq VDU) |
On |
Off |
|
40 x 25 color (Compaq VDU) |
Off |
On |
|
80 x 25 color (EGA or RGBI) |
On |
On |
|
Monochrome |
Off |
Off |