HP Dc5750 Troubleshooting Guide - dc5750 Models - Page 14

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● 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 Helpful Hints section in this guide. 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 http://www.hp.com/go/bizsupport 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 to ensure that your service call is handled properly: ● Be in front of your computer when you call. ● Write down the computer serial number and product ID number, and the monitor serial number before calling. ● Spend time troubleshooting the problem with the service technician. ● Remove any hardware that was recently added to your system. ● Remove any software that was recently installed. ● Restore the system to a Recovery Point created in HP Backup and Recovery Manager or run the Restore Plus! CD. For more information on using HP Backup and Recovery Manager, refer to the HP Backup and Recovery Manager User Guide by selecting Start > HP Backup and Recovery > HP Backup and Recovery Manager Manual. CAUTION Running the Restore Plus! CD will erase all data on the hard drive. NOTE For sales information and warranty upgrades (Care Packs), call your local authorized service provider or dealer. Helpful Hints If you encounter problems with the computer, monitor, or software, see the following list of general suggestions before taking further action: ● Check that the computer and monitor are plugged into a working electrical outlet. ● Check to see that the voltage select switch (some models) is set to the appropriate voltage for your region (115V or 230V). ● Check to see that the computer is turned on and the green power light is on. ● Check to see that the monitor is turned on and the green monitor light is on. ● Check the Power LED 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. Refer to Appendix A, POST Error Messages for more information. 8 Chapter 2 Troubleshooting Without Diagnostics ENWW

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●
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
support
.
●
Refer to the following
Helpful Hints
section in this guide.
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:
go/ispe
.
Access the Business Support Center (BSC) at
go/bizsupport
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 to ensure that
your service call is handled properly:
●
Be in front of your computer when you call.
●
Write down the computer serial number and product ID number, and the monitor serial number
before calling.
●
Spend time troubleshooting the problem with the service technician.
●
Remove any hardware that was recently added to your system.
●
Remove any software that was recently installed.
●
Restore the system to a Recovery Point created in HP Backup and Recovery Manager or run
the
Restore Plus!
CD. For more information on using HP Backup and Recovery Manager, refer to
the
HP Backup and Recovery Manager User Guide
by selecting
Start
>
HP Backup and
Recovery
>
HP Backup and Recovery Manager Manual
.
CAUTION
Running the
Restore Plus!
CD will erase all data on the hard drive.
NOTE
For sales information and warranty upgrades (Care Packs), call your local authorized
service provider or dealer.
Helpful Hints
If you encounter problems with the computer, monitor, or software, see the following list of general
suggestions before taking further action:
●
Check that the computer and monitor are plugged into a working electrical outlet.
●
Check to see that the voltage select switch (some models) is set to the appropriate voltage for your
region (115V or 230V).
●
Check to see that the computer is turned on and the green power light is on.
●
Check to see that the monitor is turned on and the green monitor light is on.
●
Check the Power LED 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. Refer to Appendix A,
POST Error
Messages
for more information.
8
Chapter 2
Troubleshooting Without Diagnostics
ENWW