HP 240 G6 Maintenance And Service Manual

9 Using HP PC Hardware Diagnostics (UEFI)HP PC Hardware Diagnostics is a Unified Extensible Firmware Interface (UEFI) that allows you to run diagnostictests to determine whether the computer hardware is functioning properly. The tool runs outside theoperating system so that it can isolate hardware failures from issues that are caused by the operating systemor other software components.When HP PC Hardware Diagnostics (UEFI) detects a failure that requires hardware replacement, a 24-digitFailure ID code is generated. This ID code can then be provided to support to help determine how to correctthe problem.NOTE: To start diagnostics on a convertible computer, your computer must be in notebook mode and youmust use the keyboard attached.To start HP PC Hardware Diagnostics (UEFI), follow these steps:1. Turn on or restart the computer, and quickly press esc.2. Press f2.The BIOS searches three places for the diagnostic tools, in the following order:a. Connected USB driveNOTE: To download the HP PC Hardware Diagnostics (UEFI) tool to a USB drive, see DownloadingHP PC Hardware Diagnostics (UEFI) to a USB device on page 79.b. Hard drivec. BIOS3. When the diagnostic tool opens, select the type of diagnostic test you want to run, and then follow theon-screen instructions.NOTE: If you need to stop a diagnostic test, press esc.Downloading HP PC Hardware Diagnostics (UEFI) to a USB deviceNOTE: The HP PC Hardware Diagnostics (UEFI) download instructions are provided in English only, and youmust use a Windows computer to download and create the HP UEFI support environment because only .exefiles are offered.There are two options to download HP PC Hardware Diagnostics to a USB device.Download the latest UEFI version1. Go to http://www.hp.com/go/techcenter/pcdiags. The HP PC Diagnostics home page is displayed.2. In the HP PC Hardware Diagnostics section, select the Download link, and then select Run.Download any version of UEFI for a specific product1. Go to http://www.hp.com/support.2. Select Get software and drivers.Downloading HP PC Hardware Diagnostics (UEFI) to a USB device 79