HP VECTRA 486U PC Series Motherboard Settings and Configuration

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HP VECTRA 486U PC Series

Processor
80486SX/80487SX/80486DX/80486DX2
Processor Speed
25/33/50(internal)/66(internal)MHz
Chip Set
HP
Max. Onboard DRAM
64MB
Cache
None
BIOS
HP
Dimensions
276mm x 325mm
I/O Options
Bus mouse port, floppy interface, IDE interface, serial ports (2), parallel port, VGA port
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
VGA port
CN1
Parallel port
CN4
Serial port 2
CN2
Bus mouse port
CN5
Serial port 1
CN3

USER CONFIGURABLE SETTINGS
Function
Switch
Position
»
Factory configured - do not alter
SW1/2
Off
»
Factory configured - do not alter
SW1/3
Off
»
VGA port enabled
SW1/4
Off

VGA port disabled
SW1/4
On
»
CMOS memory normal operation
SW1/1
Off

CMOS memory clear
SW1/1
On
»
Password check enabled
SW1/2
Off

Password check disabled (password clear)
SW1/2
On
»
Security mode disabled (CMOS setup may be changed)
SW1/3
Off

Security mode enabled (CMOS setup may not be changed)
SW1/3
On
»
BIOS write protect enabled
SW4
position 2

BIOS write protect disabled (BIOS may be upgraded from disk)
SW4
position 1

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
4MB
(2) 512K x 36
NONE
NONE
NONE
8MB
(2) 512K x 36
(2) 512K x 36
NONE
NONE
12MB
(2) 512K x 36
(2) 512K x 36
(2) 512K x 36
NONE
16MB
(2) 512K x 36
(2) 512K x 36
(2) 512K x 36
(2) 512K x 36
16MB
(2) 2M x 36
NONE
NONE
NONE
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) 512K x 36
NONE
40MB
(2) 2M x 36
(2) 2M x 36
(2) 512K x 36
(2) 512K x 36
48MB
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
NONE
52MB
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
(2) 512K x 36
64MB
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36
(2) 2M x 36

CPU TYPE CONFIGURATION
Type
SW3/1
SW3/2
SW3/3
80487SX-25MHz
Off
Off
Off
ODP486SX-50MHz
Off
Off
Off
ODP486SX-66MHz
Off
Off
On
80486DX-33MHz
On
On
On
80486DX2-50MHz
On
On
Off
80486DX2-66MHz
On
On
On
Note:Install the 80487SX or ODP486SX processors in the Upgrade CPU socket.

VRAM CONFIGURATION
Size
Bank 0
512KB
NONE
1024KB
(4) 44256

VRAM SWITCH CONFIGURATION
Size
SW1/1
512KB
Off
1024KB
On

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HP VECTRA 486U PC Series Motherboard Settings and Configuration

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Processor	80486SX/80487SX/80486DX/80486DX2
Processor Speed	25/33/50(internal)/66(internal)MHz
Chip Set	HP
Max. Onboard DRAM	64MB
Cache	None
BIOS	HP
Dimensions	276mm x 325mm
I/O Options	Bus mouse port, floppy interface, IDE interface, serial ports (2), parallel port, VGA port
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
VGA port	CN1	Parallel port	CN4
Serial port 2	CN2	Bus mouse port	CN5
Serial port 1	CN3

USER CONFIGURABLE SETTINGS
Function		Switch	Position
»	Factory configured - do not alter	SW1/2	Off
»	Factory configured - do not alter	SW1/3	Off
»	VGA port enabled	SW1/4	Off
	VGA port disabled	SW1/4	On
»	CMOS memory normal operation	SW1/1	Off
	CMOS memory clear	SW1/1	On
»	Password check enabled	SW1/2	Off
	Password check disabled (password clear)	SW1/2	On
»	Security mode disabled (CMOS setup may be changed)	SW1/3	Off
	Security mode enabled (CMOS setup may not be changed)	SW1/3	On
»	BIOS write protect enabled	SW4	position 2
	BIOS write protect disabled (BIOS may be upgraded from disk)	SW4	position 1

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
4MB	(2) 512K x 36	NONE	NONE	NONE
8MB	(2) 512K x 36	(2) 512K x 36	NONE	NONE
12MB	(2) 512K x 36	(2) 512K x 36	(2) 512K x 36	NONE
16MB	(2) 512K x 36	(2) 512K x 36	(2) 512K x 36	(2) 512K x 36
16MB	(2) 2M x 36	NONE	NONE	NONE
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) 512K x 36	NONE
40MB	(2) 2M x 36	(2) 2M x 36	(2) 512K x 36	(2) 512K x 36
48MB	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36	NONE
52MB	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36	(2) 512K x 36
64MB	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36	(2) 2M x 36

CPU TYPE CONFIGURATION
Type	SW3/1	SW3/2	SW3/3
80487SX-25MHz	Off	Off	Off
ODP486SX-50MHz	Off	Off	Off
ODP486SX-66MHz	Off	Off	On
80486DX-33MHz	On	On	On
80486DX2-50MHz	On	On	Off
80486DX2-66MHz	On	On	On
Note:Install the 80487SX or ODP486SX processors in the Upgrade CPU socket.

VRAM CONFIGURATION
Size	Bank 0
512KB	NONE
1024KB	(4) 44256

VRAM SWITCH CONFIGURATION
Size	SW1/1
512KB	Off
1024KB	On