HP Z1 G3, Руководство по техническому обслуживанию и ремонту

Страница: 56 / 91

Locating warranty information
To locate base warranty information, see http://www.hp.com/support/warranty-lookuptool .
To locate an existing Care Pack, see http://www.hp.com/go/lookuptool .
To extend a standard product warranty, visit http://www.hp.com/hps/carepack . HP Care Pack Services offer
upgraded service levels to extend and expand a standard product warranty.
Diagnosis guidelines
If you encounter a problem with the computer or software, consult the following sections. They provide a list
of general suggestions that help you isolate and focus on the problem before taking further action.
Diagnosis at startup
● Verify that the computer and external monitor (if connected) are plugged into a functional AC power
outlet.
● Remove all CDs or USB flash drives from your system before turning it on.
● Verify that the computer is turned on and the power light is white (normal operation) and not red (error
state).
● If you have installed an operating system other than the factory-installed operating system, go to
http://www.hp.com/go/quickspecs to verify that it is supported on your system.
Diagnosis during operation
● Look for power button blinking on the side of the computer. The blinking lights are error codes that will
help you diagnose the problem. See
Interpreting system validation diagnostic front panel LEDs and
audible codes on page 67 for information on interpreting diagnostic lights and audible codes.
● Verify that all cables are not loosely or incorrectly connected.
● Wake the computer by pressing any key on the keyboard or the power button. If the system remains in
suspend mode, shut down the system by pressing and holding the power button for at least four
seconds, and then press the power button again to restart the system. If the system does not shut
down, unplug the power cord, wait a few seconds, and then plug it in again. If it does not restart, press
the power button to start the computer.
● Restart the computer after installing a non–Plug and Play (PnP) expansion board or other option.
● Be sure that all required device drivers have been installed. For example, if you have connected a printer,
you must install a printer driver.
● 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 it and see if the computer functions properly.
● If you recently installed new software, uninstall it and see if the computer functions properly.
● Upgrade the BIOS. A new release of the BIOS might have been released that supports new features or
fixes your problem.
● Press the Caps Lock key. If the Caps Lock LED toggles on or off, the keyboard is operating correctly.
48 Chapter 4 Diagnostics and troubleshooting