Appendix D Troubleshooting Without Diagnostics; Safety And Comfort; Before You Call For Technical Support - HP dx2290 - Microtower PC Service & Reference Manual

D Troubleshooting Without Diagnostics
This chapter provides information on how to identify and correct minor problems, such as diskette drive,
hard drive, optical drive, graphics, audio, memory, and software problems. If you encounter problems
with the computer, refer to the tables in this chapter for probable causes and recommended solutions.
NOTE: For information on specific error messages that may appear on the screen during Power-On
Self-Test (POST) at startup, refer to

Safety and Comfort

WARNING!
may result in discomfort or serious injury. Refer to the Safety & Comfort Guide for more information on
choosing a workspace and creating a safe and comfortable work environment. This equipment has been
tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC
Rules. For more information, refer to Safety & Regulatory Information.

Before You Call for Technical Support

If you are having problems with the computer, try the appropriate solutions below to try to isolate the
exact problem before calling for technical support.
●
Run the diagnostics utility. Refer to Chapter 1,
information.
●
If the screen is blank, plug the monitor into a different video port on the computer if one is available.
Or, change out the monitor with a monitor that you know is functioning properly.
●
If you are working on a network, plug another computer with a different cable into the network
connection. There may be a problem with the network plug or cable.
●
If you recently added new hardware, remove the hardware and see if the computer functions
properly.
●
If you recently installed new software, uninstall the software and see if the computer functions
properly.
● Boot the computer to the Safe Mode to see if it will boot without all of the drivers loaded. When
booting the operating system, use "Last Known Configuration."
●
Refer to the comprehensive online technical support at http://www.hp.com/support.
● Refer to the following
POST Error Messages on page
Misuse of the computer or failure to establish a safe and comfortable work environment
Helpful Hints on page 72
69.
HP Hardware Diagnostics on page 13
section in this guide.
for more
Safety and Comfort 71