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DeskPro 486/50L (Model 001987) COMPAQ COMPUTER CORPORATION

DeskPro 486/50L (Model 001987)

Processor	80486DX
Processor Speed	50MHz
Chip Set	Compaq
Max. Onboard DRAM	104MB (on system memory card)
Cache	None
BIOS	Compaq
Dimensions	332mm x 333mm
I/O Options	32-bit system memory card slot
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Bus mouse	C1	5.25 inch floppy drive interface	FD2
Parallel port	C2	IDE interface	HDD
Serial port 1	C3	System memory card	MEM
VGA port	C4	Drive power	P1-P5
Main power	DCIN	VGA feature interface	VGA
3.5 inch floppy drive interface	FD1

USER CONFIGURABLE SETTINGS
Function		Switch	Position
�	Factory configured - do not alter	SW1/1	Off
�	EISA configuration unlocked	SW1/2	Off
	EISA configuration locked	SW1/2	On
�	Floppy drive write enabled	SW1/3	Off
	Floppy drive write disabled	SW1/3	On
�	Boot drive select determined by EISA configuration	SW1/4	Off
	Boot drive select floppy drive	SW1/4	On
�	Password check at power-on enabled	SW1/5	Off
	Password check at power-on disabled and cleared	SW1/5	On
�	EISA configuration enabled	SW1/6	Off
	EISA configuration disabled	SW1/6	On

SYSTEM MEMORY BOARD (Model 1990)

DRAM CONFIGURATION
Size	M0	M1	M2	M3	M4	M5
4MB	NONE	NONE	NONE	NONE	NONE	NONE
6MB	2MB	NONE	NONE	NONE	NONE	NONE
8MB	2MB	2MB	NONE	NONE	NONE	NONE
10MB	2MB	2MB	2MB	NONE	NONE	NONE
12MB	2MB	2MB	2MB	2MB	NONE	NONE
12MB	8MB	NONE	NONE	NONE	NONE	NONE
12MB	8MB	-----------------	NONE	NONE	NONE	NONE
14MB	2MB	2MB	2MB	2MB	2MB	NONE
14MB	8MB	2MB	NONE	NONE	NONE	NONE
14MB	8MB	-----------------	2MB	NONE	NONE	NONE
16MB	2MB	2MB	2MB	2MB	2MB	2MB
16MB	8MB	2MB	2MB	NONE	NONE	NONE
16MB	8MB	-----------------	2MB	2MB	NONE	NONE
18MB	8MB	2MB	2MB	2MB	NONE	NONE
18MB	8MB	-----------------	2MB	2MB	2MB	NONE
20MB	8MB	2MB	2MB	2MB	2MB	NONE
20MB	8MB	-----------------	2MB	2MB	2MB	2MB
20MB	8MB	8MB	NONE	NONE	NONE	NONE
20MB	8MB	-----------------	8MB	NONE	NONE	NONE
20MB	8MB	-----------------	8MB	-----------------	NONE	NONE
22MB	8MB	2MB	2MB	2MB	2MB	2MB
22MB	8MB	8MB	2MB	NONE	NONE	NONE
22MB	8MB	-----------------	8MB	2MB	NONE	NONE
22MB	8MB	-----------------	8MB	-----------------	2MB	NONE
24MB	8MB	8MB	2MB	2MB	NONE	NONE
24MB	8MB	-----------------	8MB	2MB	2MB	NONE
24MB	8MB	-----------------	8MB	-----------------	2MB	2MB
26MB	8MB	8MB	2MB	2MB	2MB	NONE
26MB	8MB	-----------------	8MB	2MB	2MB	2MB
28MB	8MB	8MB	2MB	2MB	2MB	2MB
28MB	8MB	8MB	8MB	NONE	NONE	NONE
28MB	8MB	-----------------	8MB	8MB	NONE	NONE
28MB	8MB	-----------------	8MB	-----------------	8MB	NONE
28MB	8MB	-----------------	8MB	-----------------	8MB	-----------------
30MB	8MB	8MB	8MB	2MB	NONE	NONE
30MB	8MB	-----------------	8MB	8MB	2MB	NONE
30MB	8MB	-----------------	8MB	-----------------	8MB	2MB
32MB	8MB	8MB	8MB	2MB	2MB	NONE
32MB	8MB	-----------------	8MB	8MB	2MB	2MB
34MB	8MB	8MB	8MB	2MB	2MB	2MB
36MB	8MB	8MB	8MB	8MB	NONE	NONE

DRAM CONFIGURATION
Size	M0	M1	M2	M3	M4	M5
36MB	8MB	-----------------	8MB	8MB	8MB	NONE
36MB	8MB	-----------------	8MB	-----------------	8MB	8MB
36MB	32MB	-----------------	NONE	NONE	NONE	NONE
38MB	8MB	8MB	8MB	8MB	2MB	NONE
38MB	8MB	-----------------	8MB	8MB	8MB	2MB
38MB	32MB	-----------------	2MB	NONE	NONE	NONE
40MB	8MB	8MB	8MB	8MB	2MB	2MB
40MB	32MB	-----------------	2MB	2MB	NONE	NONE
44MB	8MB	8MB	8MB	8MB	8MB	NONE
44MB	8MB	-----------------	8MB	8MB	8MB	8MB
44MB	32MB	-----------------	2MB	2MB	2MB	2MB
44MB	32MB	-----------------	8MB	NONE	NONE	NONE
44MB	32MB	-----------------	8MB	-----------------	NONE	NONE
46MB	8MB	8MB	8MB	8MB	8MB	2MB
46MB	32MB	-----------------	8MB	2MB	NONE	NONE
46MB	32MB	-----------------	8MB	-----------------	2MB	NONE
52MB	8MB	8MB	8MB	8MB	8MB	8MB
52MB	32MB	-----------------	8MB	8MB	NONE	NONE
52MB	32MB	-----------------	8MB	-----------------	8MB	-----------------
54MB	32MB	-----------------	8MB	8MB	2MB	NONE
54MB	32MB	-----------------	8MB	8MB	-----------------	2MB
56MB	32MB	-----------------	8MB	8MB	2MB	2MB
60MB	32MB	-----------------	8MB	8MB	8MB	NONE
60MB	32MB	-----------------	8MB	-----------------	8MB	8MB
62MB	32MB	-----------------	8MB	8MB	8MB	2MB
68MB	32MB	-----------------	8MB	8MB	8MB	8MB
68MB	32MB	-----------------	32MB	-----------------	NONE	NONE
70MB	32MB	-----------------	32MB	-----------------	2MB	NONE
72MB	32MB	-----------------	32MB	-----------------	2MB	2MB
76MB	32MB	-----------------	32MB	-----------------	8MB	NONE
76MB	32MB	-----------------	32MB	-----------------	8MB	-----------------
78MB	32MB	-----------------	32MB	-----------------	8MB	2MB
84MB	32MB	-----------------	32MB	-----------------	8MB	8MB
100MB	32MB	-----------------	32MB	-----------------	32MB	-----------------
Note: The system memory card uses proprietary memory modules, some require only one module space on the memory board, while others require two. In the cases where a double size module is used, the following space is marked with "-----------------", designating that space as occupied.