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.
Table B-6 Solving Display Problems
Blank screen (no video).
Cause Solution
You may have a screen blanking utility installed or energy
saver features are enabled.
Press any key or click the mouse button and, if set, type your
password.
System ROM is corrupted; system is running in Boot Block
Emergency Recovery Mode (indicated by eight beeps).
Reflash the system ROM with the latest BIOS image.
Computer is in standby mode. Press the power button to resume from standby mode.
CAUTION: When attempting to resume from standby
mode, do not hold down the power button for more than four
seconds. Otherwise, the computer will shut down and you
will lose any unsaved data.
Blank screen and the power LED flashes red five times, once every second, followed by a two second pause, and
the computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause Solution
Pre-video memory error. 1. Reseat DIMMs. Power on the system.
2. Replace DIMMs one at a time to isolate the faulty
module.
3. Replace third-party memory with HP memory.
4. Replace the system board.
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. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause Solution
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.
Solving Display Problems 125
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