Computer Crashes When Gaming: No Signal From Monitor, No Sound, Computer Still on, Power Buttons do not Work

When I play games my computer crashes, but in an unusual way. The screen will turn blank, audio can no longer be heard, and my monitor displays a "No Signal" message. The computer is still turned on, as the fans and lights are still activated. However I am unable to turn the computer off with the power button at the front, when I press and hold it the PC will not turn off, forcing me to pull the plug and reboot.

This problem has persisted for about a week now, it started very suddenly. I was playing Sniper Elite 3 and never experienced this problem, the first crash came after playing for around five minutes and I haven't been able to play any longer than that since then. This problem is also present on Killing Floor 2 but I can play it for longer before the crash. I ran WhoCrashed but it didn't recognise the problem (could only find a crash dump from March).

Could anyone please help? I'm absolutely stumped as to how I can fix it.
Reply to JHolderness
7 answers Last reply
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  1. Could you please provide full specs (CPU, RAM, PSU, GPU) ?
    Reply to FabioXN7
  2. FabioXN7 said:
    Could you please provide full specs (CPU, RAM, PSU, GPU) ?


    CPU: AMD Phenom II X4 965
    RAM: 8GB
    PSU: 650W
    GPU: NVidia GTX 660
    Reply to JHolderness
  3. JHolderness said:
    When I play games my computer crashes, but in an unusual way. The screen will turn blank, audio can no longer be heard, and my monitor displays a "No Signal" message. The computer is still turned on, as the fans and lights are still activated. However I am unable to turn the computer off with the power button at the front, when I press and hold it the PC will not turn off, forcing me to pull the plug and reboot.

    This problem has persisted for about a week now, it started very suddenly. I was playing Sniper Elite 3 and never experienced this problem, the first crash came after playing for around five minutes and I haven't been able to play any longer than that since then. This problem is also present on Killing Floor 2 but I can play it for longer before the crash. I ran WhoCrashed but it didn't recognise the problem (could only find a crash dump from March).

    Could anyone please help? I'm absolutely stumped as to how I can fix it. I've noticed that it started to happen after I started downloading Wolfenstein The New Order on Steam, could it be related to that?


    This this just start happening?
    Did you change any hardware recently?


    1. Check for any malware:
    https://www.malwarebytes.com/

    If there is, remove it instantly.

    2. Download Geforce and download drivers from there. You may have installed a wrong driver:
    https://www.geforce.co.uk/geforce-experience/download

    3. One reason why your performance maybe low is because of your parked cores. Simply, a parked core basically means it's disabled and you do not want that. Here is how to identify if your cores are parked/disabled:

    Open up windows task manager > Click on the 'performance tab' at the top > at the bottom click on 'open resource monitor' > click on the 'CPU' tab at the top > On the right you will see graphs. Make sure at the top of each graph where it says at "CPU 0", CPU 1 etc.. and make sure it does NOT say "CPU 0 - Parked".

    Look at this video too:
    https://www.youtube.com/watch?v=4fKxZ1mq9KA

    If any of the cores state they are parked or greyed out, do this:
    Go to control panel > click on 'hardware and sound' > then 'power options' > then select 'high performance'.
    If you can't find it then click on the 'hide additional plans' tab and it should be there.

    4. Make sure you're Monitor is plugged into your GPU and not motherboard, you don't want to be running on integrated graphics!

    5. Uninstall your driver using DDU:
    Download: https://www.guru3d.com/files-details/display-driver-uni...

    How to use it: hit clean and restart and ensure you download the correct driver after!

    6. Download Speccy and see if your all your parts are there and are functional, also check the temperature.
    http://filehippo.com/download_speccy/

    7. Take out the RAM and play games with each individual one. If the performance is better then you know the RAM taken out is faulty
    Reply to Mohan_27
  4. Mohan_27 said:


    This this just start happening?
    Did you change any hardware recently?


    Yes, it started happening for no discernible reason. No, I haven't made any hardware changes to the computer for at least three years now. I did try to clean the CPU cooler as I thought it might have been getting too hot, but that hasn't fixed it. I'll try the solutions you suggested and will get back, thanks.
    Reply to JHolderness
  5. Checked for malware, removed it. Drivers were already updated. Changed power options to high performance and...games are still crashing. Could this mean that hardware is at fault? I suppose something must be wrong with either the CPU or the graphics card, maybe something has gone wrong and the load of playing games is now too much for either one of them to bare?
    Reply to JHolderness
  6. JHolderness said:
    Checked for malware, removed it. Drivers were already updated. Changed power options to high performance and...games are still crashing. Could this mean that hardware is at fault? I suppose something must be wrong with either the CPU or the graphics card, maybe something has gone wrong and the load of playing games is now too much for either one of them to bare?


    Check your temps when playing games, make sure they are not too high.
    Reply to Mohan_27
  7. No hardware changes, tried to clean the cpu fan. For me, what stands out as obvious is the gpu is shutting down if the monitor gets no signal. This would be normal if the gpu is overheating due to dirt/debris preventing the gpu from efficiently getting rid of heat. Windows usage doesn't generate much of a load on the gpu, but games generate huge amounts of load, and consequently heat.

    If you are not comfortable with tearing a pc apart and giving it a thorough cleaning properly, find someone who can, and do it on a regular basis. In normal households, a pc should have a quick blowout every few months, with a good clean at least once a year. If your house is like mine, and seems like it attracts the dirt from all the other houses in the neighborhood then it's a good clean every few months instead.
    Reply to Karadjgne
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