Access the Business Support Center (BSC) at http://www.hp.com/go/bizsupport for the latest online support
information, software and drivers, proactive notication, 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, product ID number, and 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 from the Recovery Disc Set that you created or restore the system to its original
factory condition in System Software Requirement Disks (SSRD).
CAUTION: Restoring the system will erase all data on the hard drive. Be sure to back up all data les before
running the restore process.
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 the LED on the power button (rear of computer) to see if it is ashing red/white patterns.
●
Check that the computer and monitor are plugged into a working electrical outlet.
●
Check that the voltage select switch (some models) is set to the appropriate voltage for your region
(115V or 230V).
●
Check that the computer is turned on and the white power light is on.
●
Check 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 ashing red. The ashing lights are error
codes that will help you diagnose the problem. Refer to POST error messages and diagnostic front panel
LEDs and audible codes on page 74 for more information.
●
Turn up the brightness and contrast controls of the monitor if the monitor is dim.
●
Press and hold any key. If the system beeps, then the keyboard should be operating correctly.
●
Check all cable connections for loose connections or incorrect connections.
●
Wake the computer by pressing any key on the keyboard or pressing the power button. If the system
remains in suspend mode, shut down the computer by pressing and holding the power button for at
least four seconds then press the power button again to restart the computer. If the system will not shut
down, unplug the power cord, wait a few seconds, then plug it in again. The computer will restart if it is
set to power on automatically as soon as power is restored in Computer Setup. If it does not restart,
press the power button to start the computer.
●
Recongure the computer after installing a non-Plug and Play expansion board or other option. See
Solving hardware installation problems on page 67 for instructions.
60 Chapter 6 Troubleshooting without diagnostics
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