HP ProBook 4430s, Maintenance And Service Manual

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Using System Diagnostics
System Diagnostics allows you to run diagnostic tests to determine if the computer hardware is
functioning properly. The following diagnostic tests are available in System Diagnostics:
● Start-up test—This test analyzes the main computer components that are required to start the
computer.
●
Run-in test—This test repeats the start-up test and checks for intermittent problems that the start-up
test does not detect.
●
Hard disk test—This test analyzes the physical condition of the hard drive, and then checks all
data in every sector of the hard drive. If the test detects a damaged sector, it attempts to move the
data to a good sector.
●
Memory test—This test analyzes the physical condition of the memory modules. If it reports an
error, replace the memory modules immediately.
●
Battery test—This test analyzes the condition of the battery. If the battery fails the test, contact HP
Customer Support to report the issue and purchase a replacement battery.
You can also view system information and error logs in the System Diagnostics window.
To start System Diagnostics:
1. Turn on or restart the computer. While the “Press the ESC key for Startup Menu” message is
displayed in the lower-left corner of the screen, press esc . When the Startup Menu is displayed,
press f2 .
2. Click the diagnostic test you want to run, and then follow the on-screen instructions.
NOTE:
If you need to stop a diagnostics test while it is running, press esc .
112 Chapter 5 Computer Setup (BIOS) and System Diagnostics