Maintenance and Service Guide
Table Of Contents
- Computer features
- Illustrated parts catalog
- Routine care, SATA drive guidelines, and disassembly preparation
- Removal and replacement procedures
- Computer Setup (F10) Utility
- Troubleshooting without diagnostics
- Safety and comfort
- Before you call for technical support
- Helpful hints
- Solving general problems
- Solving power problems
- Solving hard drive problems
- Solving media card reader problems
- Solving display problems
- Solving audio problems
- Solving printer problems
- Solving keyboard and mouse problems
- Solving hardware installation problems
- Solving network problems
- Solving memory problems
- Solving CD-ROM and DVD problems
- Solving USB flash drive problems
- Solving front panel component problems
- Solving Internet access problems
- Solving software problems
- POST error messages
- Password security and resetting CMOS
- Using HP PC Hardware Diagnostics
- Backing up, restoring, and recovering
- Power cord set requirements
- Statement of memory volatility
- Specifications
- Index

Solving display problems
If you encounter display problems, see the documentation that came with the monitor and to the common
causes and solutions listed in the following table.
Blank screen (no video).
Cause Solution
If you have a system with an option card with display connectivity,
the option card may not be seated correctly.
1. Reseat the option card.
2. Power on the system and retest.
3. If the issue persists, replace the option card only.
4. Power on the system and retest.
5. If after reseating and replacing the option card the issue
persists, the system board connector to the option card
might be damaged. Replace the system board.
Monitor is not turned on and the monitor light is not on. Turn on the monitor and check that the monitor light is on.
Bad monitor. Try a dierent monitor.
The cable connections are not correct. Check the cable connection from the monitor to the computer and
to the electrical outlet.
You may have a screen blanking utility installed or energy saver
features are enabled.
Press any key or click the mouse button and type your password
(if set).
You are using a xed-sync monitor and it will not sync at the
resolution chosen.
Be sure that the monitor can accept the same horizontal scan rate
as the resolution chosen.
Computer is in Sleep state. Press the power button to resume from Sleep state.
IMPORTANT: When attempting to resume from Sleep state, do
not hold down the power button for more than 4 s. Otherwise, the
computer will shut down and you will lose any unsaved data.
Monitor cable is plugged into the wrong connector. Systems may have a monitor connection on both the
motherboard or an add-in card. Try moving the monitor
connection to a dierent connector on the back of the computer
Monitor settings in the computer are not compatible with the
monitor.
1. In Control Panel, select Category from the View by list, then
under Appearance and Personalization, select Adjust
screen resolution.
To access Control Panel in Windows 10, type control
panel in the taskbar search box, and then select Control
Panel from the list of applications.
2. Expand the Resolution box, and then use the sliding control
to reset the resolution.
Monitor is congured to use an input that is not active. Use the monitor's on-screen menu controls to select the input
that is being driven by the system. See the monitor's user
documentation for more information on the on-screen controls
and settings.
82 Chapter 6 Troubleshooting without diagnostics