HP Vectra VE4 Manuale utente

Vectra 4E/xx Technical Reference 1 System Overview •• 1

HP Vectra VE 4/xx Series PC Technical Reference

Manual Hardware and BIOS

Printed Manual Information

Trademarks

Preface

1 System Overview

High-Level System Architecture

System Board

System Board Diagram

Backplane Diagram

DX2/DX4 Type Processors

WB/WT Type Processors

Write-Through Mode

Write-Back Mode

Main Processor Chipset

I/O Chip

Video Graphics Accelerator Chip

System Physical Characteristics

Electrical Specifications

Power Consumption

Operating Environment

2 Summary of HP System BIOS

I/O Addresses

I/O Port Mapping

Memory Mapping

System Board Component Addressing

3 Integrated Ultra VGA Controller

Main Video Features

Video Memory

Video Resolutions

VESA Connector

4 System Hardware Tests

Shadow RAM Features

POST Features

POST Errors

POST Tests

Vectra 4E/xx Technical Reference 1 System Overview •• 2

Printed Manual Information

Vectra 4E/xx Technical Reference 1 System Overview •• 3

Trademarks

Microsoft®, MS-DOS® and Windows NT® are U.S. registered

trademarks of Microsoft Corporation.

Logitech® is a registered trademark of Logitech Corp.

AutoCAD® is a U.S. registered trademark of Autodesk Inc.

PC-AT® is a registered trademark of IBM.

Super I/O® is a trademark of National Semiconductor Corp.

Vectra 4E/xx Technical Reference 1 System Overview •• 4

Preface

This document provides a useful source of technical information about the HP Vectra VE

4/xx Series PCs. It has been written for those engineers and technicians who are required to

provide system level support. The reader is assumed to have a detailed understanding of

PC-AT compatible microprocessor functions and digital addressing techniques.

Please note that this document does not include detailed descriptions of BIOS functionality.

Additional information may be obtained from other sources such as the component

manufacturer's reference documentation.

Bibliography

For additional information, please refer to the following documents:

•HP Vectra VE 4/xx Series PC Users Guide (supplied with the PC).

•HP Vectra VE 4/xx Series PC Familiarization Guide (D35XX+49A+90001).

•HP Vectra PC Service Handbook - 8th edition (5963-6104).

•PC87303VUL Super I/O Sidewinder Lite National Semiconductor Corporation.

•SiS 85C496/497 Chipset Silicon Integrated Systems Corporation.

•Trio64 Graphics Accelerator S3 Incorporated

Vectra 4E/xx Technical Reference 1 System Overview •• 5

1 System Overview

Vectra 4E/xx Technical Reference 1 System Overview •• 6

High-Level System Architecture

The HP Vectra VE 4/xx Series PCs incorporate the Silicon Integrated Systems (SiS)

85C496/85C497© chipset and have the following high-level architecture:

Vectra 4E/xx Technical Reference 1 System Overview •• 7

System Board

The system board has the following main features:

•486 processor (50, 66 or 100 MHz)

•Enhanced IDE (Integrated Drive Electronics) supporting four fast IDE drives

•high performance PCI bus

•fast 64-bit graphics processor

•video memory of 1 MB, upgradable to 2 MB

•BIOS stored in Flash ROM (for easy upgradeability)

•BIOS support for Plug and Play

•preloaded Desktop Management Interface (DM I) software, DOS and Windows software

•Energy Star compliant power management

•main memory of 4 MB or 8 MB, upgradable to 64 MB

•256 KB cache upgrade option

•four device shelves:

◊◊ two with front access for one 3.5-inch device and one 5.25-inch device

◊◊ two internal, for hard disk drives

•four free slots for accessory boards, allowing the installation of:

◊◊ two ISA boards and two PCI boards or

◊◊ three ISA boards and one PCI board

•one parallel and two serial communications ports

For additional information, see “System Physical Characteristics”.

Vectra 4E/xx Technical Reference 1 System Overview •• 8

System Board Diagram

Vectra 4E/xx Technical Reference 1 System Overview •• 9

Backplane Diagram

The backplane provides the following connectors and slots:

•one PCI connector

•one PCI/ISA combination connector

•one ISA connector

•three full-length slots

•one half-length slot

Jumpers must be correctly set for the DX2 or DX4 type processor and for WB (Write-Back)

or WT (Write-Through) line useage.

Vectra 4E/xx Technical Reference 1 System Overview •• 10

DX2/DX4 Type Processors

The CLKMUL pin is controlled by jumper JP16 which is defaulted to x3 mode (DX4). As the

DX2 and DX4 are the same component running at a different clock speed, the jumper

cannot be left in the DX4 position otherwise the DX2 will also run in x3 clock mode.

The trace on the non-component side of the board which connects pin numbers 2 and 3 of

JP16 must be cut. Pin 1 of JP16 can be identified by the square solder pad. JP16 must then

be added to the board. The 1-2 connection is the DX2 position and the 2-3 connection is the

DX4 position.

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