HP Z220 SFF, Z220 CMT, Z420, Z620, and Z820 Workstations Maintenance and Service Guide

Self-troubleshooting with HP PC Hardware Diagnostics
HP PC Hardware Diagnostics is a Unified Extensible Firmware Interface (UEFI) based diagnostic tool
that can be used by the end user or technical support personnel to view information about the system
configuration and to perform hardware troubleshooting. The diagnostic tool runs outside of the
operating system to isolate hardware failures from issues that might be caused by the operating
system or other software components.
HP PC Hardware Diagnostics:
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Easy to obtain:
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Installed on original image of every system hard drive (HDD)
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Core set of tests installed in the BIOS of every system
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Download to a USB key drive
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Captures complete system configuration information, including:
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System serial number, product ID number, asset tag, and model
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Memory size and configuration
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Processor information (including, type and speed)
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Storage device information
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HDD: Launches Drive Self Test (DST) SMART tests for SATA drives
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Keyboard controller revision
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Bundles of tests to perform a quick test or extensive test of the entire system
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BIOS date and revision
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Diagnostic tests:
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System tests (Start-up, Run-In and System Tune-Up)
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Individual component tests (Hard Disk Test and Memory Tests)
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Diagnostic Failure Code Output — A unique, 24–digit Failure ID code is generated for each
failure:
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Randomly generated, unique each occurrence
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Identifies the specific components that did not pass validation
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Includes warranty information with information about the customer’s service entitlement
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Provides information about the model, serial number, test time stamp, and failure
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Includes recommended actions with URL information on whom to contact
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Generation of the failure code indicates a definite hardware failure – no additional
troubleshooting is required
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Error Log — The tool automatically saves an error log on the device from which the test was run
(either the hard drive or USB drive). This log is available for future access from the tool and
includes the test that was run, date of the test, and Pass/Fail information including the Failure ID
if one was generated.
140 Chapter 4 Diagnostics and troubleshooting