VECTRA 486/U Motherboard Settings and Configuration

HEWLETT-PACKARD COMPANY

VECTRA 486/U

Processor
80486SX/80487SX/80486DX/80486DX2
Processor Speed
25/33/50(internal)/66(internal)MHz
Chip Set
Unidentified
Max. Onboard DRAM
32MB
Cache
128KB (location unknown)
BIOS
Unidentified
Dimensions
355mm x 304mm
I/O Options
Bus mouse port, floppy drive interface, IDE interface, parallel port, serial ports (2), VGA port, VESA feature connector
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
IDE interface LED
CN1
Serial port 2
CN7
Floppy drive interface
CN2
Serial port 1
CN8
Hard drive interface
CN3
VESA feature connector
CN9
Speaker
CN4
Parallel port
CN10
External battery
CN5
Control panel
CN11
VGA port
CN6
BIOS lock switch
SW1

USER CONFIGURABLE SETTINGS
Function
Switch
Position
Factory configured - do not alter
SW4/switch 2
Off
Factory configured - do not alter
SW4/switch 3
Off
Built in video disabled
SW4/switch 4
On
Built in video enabled
SW4/switch 4
Off

CPU SPEED SELECTION-- INTEL CPU
Speed
SW3/switch 1
SW3/switch 2
SW3/switch 3
25MHz
Off
Off
Off
33MHz
On
On
On
50iMHz
On
On
Off
66iMHz
On
On
On

CPU SPEED SELECTION-- HEWLETT PACKARD CPU
Speed
SW3/switch 1
SW3/switch 2
SW3/switch 3
25MHz
On
Off
Off
33MHz
On
Off
On
50iMHz
On
Off
Off
66iMHz
On
Off
On

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 4
4MB
(2) 512K x 36
NONE
NONE
NONE
8MB
(2) 512K x 36
(2) 512K x 36
NONE
NONE
16MB
(2) 512K x 36
(2) 512K x 36
(2) 512K x 36
(2) 512K x 36
20MB
(2) 2M x 36
(2) 512K x 36
NONE
NONE
24MB
(2) 2M x 36
(2) 512K x 36
(2) 512K x 36
NONE
28MB
(2) 2M x 36
(2) 512K x 36
(2) 512K x 36
(2) 512K x 36
32MB
(2) 2M x 36
(2) 2M x 36
NONE
NONE
36MB
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
NONE
48MB
(2) 2M x 36
(2) 8M x 36
(2) 8M x 36
NONE
52MB
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
64MB
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36

PASSWORD AND CONFIGURATION SWITCHES
SW2
Function
Closed
Open
1
Clear configuration
Clear CMOS
Retain CMOS
2
Erase power-on password
Erase password
Retain password
3
Lock configuration
No configuration change
Configuration can change

VIDEO CONFIGURATION
Size
Bank 0
Bank 1
SW4/1
512KB
(2) 256K x 4
NONE
OFF
1MB
(2) 256K x 4
(2) 256K x 4
ON

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VECTRA 486/U Motherboard Settings and Configuration

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Processor	80486SX/80487SX/80486DX/80486DX2
Processor Speed	25/33/50(internal)/66(internal)MHz
Chip Set	Unidentified
Max. Onboard DRAM	32MB
Cache	128KB (location unknown)
BIOS	Unidentified
Dimensions	355mm x 304mm
I/O Options	Bus mouse port, floppy drive interface, IDE interface, parallel port, serial ports (2), VGA port, VESA feature connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
IDE interface LED	CN1	Serial port 2	CN7
Floppy drive interface	CN2	Serial port 1	CN8
Hard drive interface	CN3	VESA feature connector	CN9
Speaker	CN4	Parallel port	CN10
External battery	CN5	Control panel	CN11
VGA port	CN6	BIOS lock switch	SW1

USER CONFIGURABLE SETTINGS
Function	Switch	Position
Factory configured - do not alter	SW4/switch 2	Off
Factory configured - do not alter	SW4/switch 3	Off
Built in video disabled	SW4/switch 4	On
Built in video enabled	SW4/switch 4	Off

CPU SPEED SELECTION-- INTEL CPU
Speed	SW3/switch 1	SW3/switch 2	SW3/switch 3
25MHz	Off	Off	Off
33MHz	On	On	On
50iMHz	On	On	Off
66iMHz	On	On	On

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 4
4MB	(2) 512K x 36	NONE	NONE	NONE
8MB	(2) 512K x 36	(2) 512K x 36	NONE	NONE
16MB	(2) 512K x 36	(2) 512K x 36	(2) 512K x 36	(2) 512K x 36
20MB	(2) 2M x 36	(2) 512K x 36	NONE	NONE
24MB	(2) 2M x 36	(2) 512K x 36	(2) 512K x 36	NONE
28MB	(2) 2M x 36	(2) 512K x 36	(2) 512K x 36	(2) 512K x 36
32MB	(2) 2M x 36	(2) 2M x 36	NONE	NONE
36MB	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36	NONE
48MB	(2) 2M x 36	(2) 8M x 36	(2) 8M x 36	NONE
52MB	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36
64MB	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36

PASSWORD AND CONFIGURATION SWITCHES
SW2	Function	Closed	Open
1	Clear configuration	Clear CMOS	Retain CMOS
2	Erase power-on password	Erase password	Retain password
3	Lock configuration	No configuration change	Configuration can change

VIDEO CONFIGURATION
Size	Bank 0	Bank 1	SW4/1
512KB	(2) 256K x 4	NONE	OFF
1MB	(2) 256K x 4	(2) 256K x 4	ON