Computer randomly restarts or monitor shuts down while playing games

Hi everyone,

A few months ago, I had a problem while playing a game during a LAN party: my monitor shut down and wouldn't turn back on. My video card is a GTX 650 Ti, but my friend had a GTX 660 so I borrowd it to him, and the problem seemed solved.

Recently (about 1 month ago), my computer restarts randomly (shuts down then turns itself back on instantly) while I'm playing games (mainly Hearts of Iron 4, Heroes of the Storm, 7 days to die, Counterstrike...). Here's what I did since then:

1. Updated my BIOS
2. Changed my CMOS battery which was at ~2.5V instead of 3V
3. Tested my PSU voltage (everything seems fine)
4. Reinstalled all my GPU drivers
5. Checked all my temperatures (GPU, CPU, etc...)

I tried switching back to my GTX 560 Ti and the computer no longer restarts, but instead the monitor shuts down. It seems like it is the same problem for both GPU, but the response isn't the same based on the GPU.

I also looked plenty of threads on this forum for solutions, but none of them worked. Anyone has a clue about how I could solve this?

Here's my spec:

CPU: Intel I3-2500K 3.3 GHz
Motherboard: MSI MS-7673
GPU: Nvidia GTX 560Ti or GTX 660
RAM: 8 Gb DDR3 (1300Hz)
PSU: Thermaltake 600W (I don't really remember the exact model)
HDD: Seagate 3TB (5400 RPM)
SSD: Seagate 256Gb (7200 RPM)
OS: Windows 7 64-Bit
Reply to Shebzz
6 answers Last reply
More about computer randomly restarts monitor shuts playing games
  1. Crashes like the ones you describe are usually the result of a part of your PC overheating. Now even though you monitored your temps, crashes might still happen with normal temps, especially when overclocking.

    Since you run into this issue with both GPU's, I believe they are not the problem actually.

    I assume your CPU is overclocked. If that is the case, try to turn it down a little bit. The CPU might not be the most obvious part to check if there are problems with your visual output, but it's possible and worth a shot.
    Reply to Kollosso
  2. Kollosso said:
    Crashes like the ones you describe are usually the result of a part of your PC overheating. Now even though you monitored your temps, crashes might still happen with normal temps, especially when overclocking.

    Since you run into this issue with both GPU's, I believe they are not the problem actually.

    I assume your CPU is overclocked. If that is the case, try to turn it down a little bit. The CPU might not be the most obvious part to check if there are problems with your visual output, but it's possible and worth a shot.


    Hi Kollosso,

    Thanks for the answer. I never overclocked my CPU, but I might still check in case the overclocking randomly turned itself on or if I accidentally did this. Could it be a problem with the motherboard like a broken PCI-E slot (I only have one though so I can't really test it...)? I visually inspected all the capacitors and they seem in good shape...
    Reply to Shebzz
  3. Shebzz said:

    Hi Kollosso,

    Thanks for the answer. I never overclocked my CPU, but I might still check in case the overclocking randomly turned itself on or if I accidentally did this. Could it be a problem with the motherboard like a broken PCI-E slot (I only have one though so I can't really test it...)? I visually inspected all the capacitors and they seem in good shape...


    While this of course is entirely possible, hardware issues should always be the last thing on our checklist, since this is the only thing we can't really fix without buying new stuff.

    Now you obviously allready tried a lot of things as you described in your first post. I'm honestly out of ideas but then again I'm not the most experienced person on here and can mostly only assist with problems I have personally run into and offer solutions that worked for me, apart from the obvious Driver updates etc. which you allready did.

    I'm sure someone else can assist you further.
    Reply to Kollosso
  4. Kollosso said:
    Shebzz said:

    Hi Kollosso,

    Thanks for the answer. I never overclocked my CPU, but I might still check in case the overclocking randomly turned itself on or if I accidentally did this. Could it be a problem with the motherboard like a broken PCI-E slot (I only have one though so I can't really test it...)? I visually inspected all the capacitors and they seem in good shape...


    While this of course is entirely possible, hardware issues should always be the last thing on our checklist, since this is the only thing we can't really fix without buying new stuff.

    Now you obviously allready tried a lot of things as you described in your first post. I'm honestly out of ideas but then again I'm not the most experienced person on here and can mostly only assist with problems I have personally run into and offer solutions that worked for me, apart from the obvious Driver updates etc. which you allready did.

    I'm sure someone else can assist you further.


    Well thank you for your input! I don't know enough about viruses, but could that be the cause of this problem? There is no memory dump file or anything, and the computer just restarts like some sort of power failure or the monitor stops working. If it was indeed a virus, wouldn't the effect be always the same no matter which video card I'm using? Regarding this, I scanned my computer with CCleaner, Zemana, NOD32 and Avira: everything checked out without any virus (some registry problems, but they were solved).

    Anyway I will let time pass and hope that someone comes with a solution.
    Reply to Shebzz
  5. Even if I tested the voltage on my PSU, does anyone think it could still be the problem, but only when the PSU is under load (while playing games)? How could I test that?
    Reply to Shebzz
  6. I had rhe aame problem and i fixed it by turning the power option to high performance
    Reply to Trev6450w
Ask a new question Answer

Read More

Games Monitors