NOTE:
After a message on the screen reports a successful installation, you can delete the
downloaded file from your hard drive.
Using System Diagnostics
System Diagnostics allows you to run diagnostic tests to determine if the computer hardware is
functioning properly.
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
.
Using System Diagnostics
99
Summary of Contents for ProBook 455
Page 1: ...HP 450 Notebook PC and HP 455 Notebook PC Maintenance and Service Guide ...
Page 4: ...iv Safety warning notice ...
Page 8: ...viii ...
Page 50: ...4 Remove the display bezel 3 42 Chapter 4 Removal and replacement procedures ...
Page 52: ...b Disconnect the module cable from the module 44 Chapter 4 Removal and replacement procedures ...
Page 87: ...d Disconnect the module cable 3 from the module Component replacement procedures 79 ...