Reference Guide Color Monitor Series 5500, 7500, 7550, 9500

Operation
Reference Guide www.hp.com 4–9
Out of Frequency Range Message
If an Out of Frequency Range message displays on your monitor,
your video resolution and/or refresh rate are set higher than the
levels your monitor supports.
To change the video resolution or refresh rate on your monitor,
follow these steps:
1. Restart your computer.
2. Enter Safe Mode on your computer. Refer to your computer’s
operating system Help for instructions on entering Safe
Mode.
3. Change your display settings to a supported setting (see
“Technical Specifications”).
4. Restart your computer so that the new settings take effect.