HP Pro SFF 280 G9 Desktop PC Maintenance and Service Guide - Page 48

Troubleshooting without diagnostics, Before you call for technical support

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5 Troubleshooting without diagnostics Use these sections to identify and correct minor problems. CAUTION: Misuse of the computer or failure to establish a safe and comfortable work environment can result in discomfort or serious injury. See the Safety & Comfort Guide at http://www.hp.com/ergo for more information about 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 these solutions to isolate the exact problem before calling for technical support. ● Run the HP diagnostic tool. ● Run the hard drive self-test in Computer Setup. ● Check the power light on the front of the computer to see if it is blinking red. The blinking lights are error codes that will help you diagnose the problem. ● 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. Access HP Business Solutions at https://www.hp.com/us-en/solutions/business-solutions.html for the latest online support 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: ● Be in front of your computer when you call. ● Before you call, write down the computer serial number and product ID number. ● Spend time troubleshooting the problem with the service technician. ● Restore the system from the Recovery Disc Set that you created or restore the system to its original factory condition in System Software Requirement Disks (SSRD). IMPORTANT: Restoring the system will erase all data on the hard drive. Be sure to back up all data files before running the restore process. Troubleshooting without diagnostics 41

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Troubleshooting without diagnostics
5
Use these sections to identify and correct minor problems.
CAUTION:
Misuse of the computer or failure to establish a safe and comfortable work environment can
result in discomfort or serious injury. See the
Safety & Comfort Guide
at
for more
information about 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 these solutions to isolate the exact problem before calling
for technical support.
●
Run the HP diagnostic tool.
●
Run the hard drive self-test in Computer Setup.
●
Check the power light on the front of the computer to see if it is blinking red. The blinking lights are error
codes that will help you diagnose the problem.
●
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
.
Access HP Business Solutions at
for the latest
online support 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:
●
Be in front of your computer when you call.
●
Before you call, write down the computer serial number and product ID number.
●
Spend time troubleshooting the problem with the service technician.
●
Restore the system from the Recovery Disc Set that you created or restore the system to its original
factory condition in System Software Requirement Disks (SSRD).
IMPORTANT:
Restoring the system will erase all data on the hard drive. Be sure to back up all data files
before running the restore process.
Troubleshooting without diagnostics
41