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HP VECTRA 486U PC Series

HEWLETT-PACKARD COMPANY

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