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5
Troubleshooting without diagnostics
This chapter provides information on how to identify and correct minor problems, such as USB devices, hard
drive, optical drive, graphics, audio, memory, and software problems. If you encounter problems with the
computer, see 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, see
Safety and comfort
CAUTION:
Misuse of the computer or failure to establish a safe and comfortable work environment may result
in discomfort or serious injury. See the Safety & Comfort Guide at
on choosing a workspace and creating a safe and comfortable work environment. For more information, see the
Safety & Regulatory Information guide.
Before you call for technical support
If you are having problems with the computer, try the following solutions to try to isolate the exact problem
before calling for technical support.
Run the HP diagnostic tool.
●
Run the hard drive self-test in Computer Setup. See
●
information.
●
Check the power light on the front of the computer to see if it is flashing red. The flashing lights are error
codes that will help you diagnose the problem. See
information.
●
If you are working on a network, plug another computer with a different cable into the network connection.
There might 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."
See the comprehensive online technical support at http://www.hp.com/support.
●
See
Helpful hints on page 38
●
To assist you in resolving problems online, HP Instant Support Professional Edition provides you with self-solve
diagnostics. If you need to contact HP support, use HP Instant Support Professional Edition's online chat feature.
Access HP Instant Support Professional Edition at: http://www.hp.com/go/ispe.
Access the Business Support Center (BSC) at
information, software and drivers, proactive notification, and worldwide community of peers and HP experts.
If it becomes necessary to call for technical assistance, be prepared to do the following tasks to ensure that your
service call is handled properly:
POST error messages on page
in This guide.
http://www.hp.com/go/bizsupport
70.
http://www.hp.com/ergo
Computer Setup (F10) Utility on page 56
POST error messages on page 70
for more information
for more
for more
for the latest online support
Safety and comfort
37
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