HP 11-f000 Maintenance and Service Guide - Page 52
Using HP PC Hardware Diagnostics (UEFI)
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7 Using HP PC Hardware Diagnostics (UEFI) HP PC Hardware Diagnostics is a Unified Extensible Firmware Interface (UEFI) utility that allows you to run diagnostic tests to determine whether the computer hardware is functioning properly. The tool runs outside the operating system so that it can isolate hardware failures from issues that are caused by the operating system or other software components. To start HP PC Hardware Diagnostics (UEFI): 1. Turn on or restart the computer, quickly press esc. 2. Press or tap f2. The BIOS searches 3 places for the diagnostic tools, in the following order: a. Connected USB drive NOTE: To download the HP PC Hardware Diagnostics (UEFI) tool to a USB drive, see Downloading HP PC Hardware Diagnostics (UEFI) to a USB device on page 47. b. Hard drive c. BIOS 3. When the diagnostic tool opens, use the keyboard arrow keys to select the type of diagnostic test you want to run, and then follow the on-screen instructions. NOTE: If you need to stop a diagnostic test, press or tap esc. 46 Chapter 7 Using HP PC Hardware Diagnostics (UEFI)