After 4 years 2nd monitor is throwing No Signal Error but works with Multiple restarts

Jirafaro 1 Reputation point

After four years I started to have issues with my Desktop computer, quickly realized (afaik) that the PSU needed to be replaced as I wasnt getting any power on startup. After replacing the PSU the computer would boot but wouldnt display, realized Graphics card must've went out at the same time--> found a quick fix (new 1060) and display is now working just fine, everything back to normal..... Except the second display is finnicky. Using 1 HDMI and 1 RGB for second monitor. I've tried swapping around the RGB and HDMI cables on the monitors and it doesnt seem to make a difference, the HDMI display will ALWAYS work but the RGB signal monitor may require a few restarts in order to work properly. I've noticed that this new graphics card may be faulty and part of the problem, the RGB monitor seems to start only when the HDMI isn't plugged in and the HDMI then works after boot into RGB has been successful (replugged HDMI in after RGB boot is successful). The RGB monitor seems to only come on after a few attempts at computer turn off- and turn on. Im not sure if this is a sign that the graphics card is faulty, and or a sign that the Motherboard is starting to show issues. My motherboard is an Asus Maximus Hero VII - also 4 years old and never replaced. In the 4 years PSU and GPU have both been replaced twice now. Any suggestions are greatly appreciated !

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  1. Joy Qiao 4,891 Reputation points Microsoft Employee


    Thank you for coming Microsoft Q&A.

    According to your description, we think your issue might be more related with hardware device, so that we recommend to contact with Asus support to check if they have any suggestions on hardware side. Before that, please update your hardware driver manually from Asus website with the latest version.

    Thank you for your understanding.



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  2. S.Sengupta 15,761 Reputation points MVP

    First change the HDMI cable and check.

    If changing cable doesn't help then try to test this graphic card on a new device (if possible) with same OS ecosystem.

    If that fails too then visit a computer vendor's outlet abd get things checked if there is any fault with hardware ( graphic card).

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