Helpful Hints - HP Compaq dx2400 Quick Start Manual

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. The
flashing lights are error codes that will help you diagnose the problem. Refer
to Interpreting POST Diagnostic Front Panel LEDs and Audible Codes
on page 14
●
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 automatic start on power loss is set in Computer Setup. If it does
not restart, press the power button to start the computer.
●
Reconfigure your computer after installing a non–plug and play expansion
board or other option. See
on page 12
●
Be sure that all the needed device drivers have been installed. For example,
if you are using a printer, you need a driver for that model printer.
●
Remove all bootable media (diskette, CD, or USB device) from the system
before turning it on.
●
If you have installed an operating system other than the factory-installed
operating system, check to be sure that it is supported on the system.
●
If the system has multiple video sources (embedded, PCI, or PCI-Express
adapters) installed (embedded video on some models only) and a single
monitor, the monitor must be plugged into the monitor connector on the source
selected as the primary VGA adapter. During boot, the other monitor
connectors are disabled and if the monitor is connected into these ports, the
monitor will not function. You can select which source will be the default VGA
source in Computer Setup.
8 Quick Setup & Getting Started
in this guide for details.
Solving Hardware Installation Problems
for instructions.
ENWW