Sync Out of Range Error on Monitor Connected to PXI Controller

Updated Apr 5, 2019

Reported In


  • PXI HARD DRIVE ACCESSORIES - Controller Accessory
  • PXI-8184/8185


  • PXI Platform Services


Third-party monitor

Issue Details

When I turn on my PXI controller with the monitor attached, I get a Sync Out of Range error when loading into Windows. What causes this and how can I fix it?


When your PXI controller loads into Windows, it uses the default video settings for the display resolution and frequency. If your monitor cannot handle the default settings, then it will display the Sync Out of Range error on the monitor.

You will need to change the video settings by following the steps below.
  1. Restart the controller by powering off the chassis and powering it back on.
  2. Upon reboot, hold the F8 key until the Windows Advanced Options Menu displays.

  3. Choose the option for Safe Mode.
  4. Once Windows loads into Safe Mode, the desktop background will be black and display a warning message about Safe Mode and system restore. 
Click Yes to proceed to work in Safe Mode.
  1. Click on Start >> Run and type in msconfig.
  2. When the System Configuration Utility window opens choose the BOOT.INI tab and check the /BASEVIDEO check box. 
This will make Windows boot with the lowest resolution and frequency settings in normal mode.
  1. Click OK and choose to restart now
  2. Upon restarting, Windows will go into normal mode and will have the base video settings. The Sync Out of Range error will not appear. From here you can right click on the desktop and choose properties to change the settings to a higher frequency and resolution that the monitor can still handle.


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