HP EliteDesk 800 G2 Desktop Mini, HP EliteDesk 705 G2 Desktop Mini, HP ProDesk 600 G2 Desktop Mini, HP ProDesk 400 G2 Desktop Mini, HP MP9 G2 Retail System - Maintenance and Service Guide

Blank screen and the power LED ashes Red six times, once every second, followed by a two second pause, and the computer beeps six
times. (Beeps stop after fth iteration but LEDs continue ashing.)
Cause Solution
1. Reseat the graphics card (if applicable). Power on the system.
2. Replace the graphics card (if applicable).
3. Replace the system board.
For systems with integrated graphics, replace the system board.
Blank screen and the power LED ashes Red seven times, once every second, followed by a two second pause, and the computer beeps
seven times. (Beeps stop after fth iteration but LEDs continue ashing.)
Cause Solution
System board failure (ROM detected failure prior to video). Replace the system board.
Monitor does not function properly when used with energy saver features.
Cause Solution
Monitor without energy saver capabilities is being used with energy
saver features enabled.
Disable monitor energy saver feature.
Dim characters.
Cause Solution
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 (if applicable) or video connector and the monitor.
Blurry video or requested resolution cannot be set.
Cause Solution
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.
The picture is broken up, rolls, jitters, or ashes.
Cause Solution
The monitor connections may be incomplete or the monitor may be
incorrectly adjusted.
1. Be sure the monitor cable is securely connected to the
computer.
Solving display problems 83