HP Dc7100 Troubleshooting Guide - Page 37

contrast controls., Adjust the monitor brightness - video controller driver

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Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause Blank screen and the power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps six times. Pre-video graphics error. Blank screen and the power LED flashes Red seven times, once every second, followed by a two second pause, and the computer beeps seven times. Monitor does not function properly when used with energy saver features. Dim characters. System board failure (ROM detected failure prior to video). Monitor without energy saver capabilities is being used with energy saver features enabled. The brightness and contrast controls are not set properly. Cables are not properly connected. Blurry video or requested resolution cannot be set. If the graphics controller was upgraded, the correct graphics drivers may not be loaded. Monitor is not capable of displaying requested resolution. Graphics card is bad. Solution For systems with a graphics card: 1. Reseat the graphics card. Power on the system. 2. Replace the graphics card. 3. Replace the system board. For systems with integrated graphics, replace the system board. Replace the system board. Disable monitor energy saver feature. Adjust the monitor brightness and contrast controls. Check that the graphics cable is securely connected to the graphics card and the monitor. Install the video drivers included in the upgrade kit. Change requested resolution. Replace the graphics card. Troubleshooting Guide www.hp.com 2-21

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Troubleshooting Guide
www.hp.com
2–21
Troubleshooting Without Diagnostics
Blank screen and the
power LED flashes Red six
times, once every second,
followed by a two second
pause, and the computer
beeps six times.
Pre-video graphics
error.
For systems with a graphics card:
1. Reseat the graphics card.
Power on the system.
2. Replace the graphics card.
3. Replace the system board.
For systems with integrated
graphics, replace the system board.
Blank screen and the
power LED flashes Red
seven times, once every
second, followed by a two
second pause, and the
computer beeps seven
times.
System board failure
(ROM detected failure
prior to video).
Replace the system board.
Monitor does not function
properly when used with
energy saver features.
Monitor without energy
saver capabilities is
being used with energy
saver features enabled.
Disable monitor energy saver
feature.
Dim characters.
The brightness and
contrast controls are not
set properly.
Adjust the monitor brightness and
contrast controls.
Cables are not properly
connected.
Check that the graphics cable is
securely connected to the graphics
card and the monitor.
Blurry video or requested
resolution cannot be set.
If the graphics controller
was upgraded, the
correct graphics drivers
may not be loaded.
Install the video drivers included in
the upgrade kit.
Monitor is not capable
of displaying requested
resolution.
Change requested resolution.
Graphics card is bad.
Replace the graphics card.
Solving Display Problems
(Continued)
Problem
Cause
Solution