HP 540 - Notebook PC Manuallines - Página 2

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1. Introduction

As computer technology has advanced, the BIOS (Basic Input/Output System) has

expanded in an effort to handle new components, larger and more complex

chipsets, add‐in cards, and so on. This expansion of the BIOS has made it

increasingly intricate.

The computer industry's answer to address BIOS limitations is the development

of the Extensible Firmware Interface (EFI). EFI is a set of modular interfaces that

replaces the set of traditional BIOS interfaces between the operating system and

platform firmware.

EFI is based on the high‐level C language and is driver‐based, scalable, and easy to

debug and upgrade. EFI uses a modular, platform‐independent architecture that

can perform boot and other BIOS functions.

Tapping into this technology, HP has implemented a preboot partition on all of its

commercial notebook computers.

Along with replacing the traditional BIOS

interface, the HP partition adds tools to the preboot system environment. The

partition is viewable on the hard drive and is labeled as HP_TOOLS. On 2008 and

later commercial notebook platforms with the EFI BIOS, HP created the partition

as a FAT32 partition, due to EFI BIOS limitations with accessing other partition

formats.

For more information about EFI, go to http://www.hp.com/go/techcenter

The HP_Tools partition feature described in this document is supported by 2008

and 2009 HP business notebooks.

3. Location of HP EFI and Preboot Applications- the

HP_TOOLS Fat32 Partition