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PC Crashes When Gaming

I'll try to make this short. Every time I try to game, I will get a few hours in and then my system will force reboot (completely off and then back on again). Then whenever I try to even load a game again, it does the same thing. I have checked the RAM with memtest86, the CPU with Intel's checker, I have reloaded Windows 10 to multiple drives, and the PSU voltages all come out good.

All temperatures are within acceptable ranges. I also don't think the PSU is overheating, as the system would just shut down and not restart. I also replaced my VGA cables to my graphics card. I can run Time Spy on 3DMark, but not Firestrike. Has anyone ever experienced or heard of a problem like this before? Any sort of input would be greatly appreciated.

System:
i7-4790K
MSI GTX 980 Gaming 4G
16 GB 1866 RAM
650 watt EVGA Gold+ PSU
250 GB 850 EVO Samsung
Reply to CamperJoe15
7 answers Last reply Best Answer
More about crashes gaming
  1. To be honest, it still sounds like overheating. Possibly mobo components like VRM's, which could explain the lingering problem after reboot. If you've completely eliminated any chance of it being CPU or GPU, you can try running it with the case off and maybe a desk fan on low pointed at the innards. If that helps then adding some case fans that move more air across the board would take care of it.
    Reply to TMTOWTSAC
  2. remove case covers, and blow a fan onto mainboard, and see if it improves...

    A hard shutdown smacks of either thermals or PSU, quite often....(mainboard must be capable of supplying good power to both CPU, VRM circuitry, and to GPU thru PCI-e slot...)

    Is the CPU and memory at stock clocks?
    Reply to mdd1963
  3. mdd1963 said:
    remove case covers, and blow a fan onto mainboard, and see if it improves...

    A hard shutdown smacks of either thermals or PSU, quite often....(mainboard must be capable of supplying good power to both CPU, VRM circuitry, and to GPU thru PCI-e slot...)

    Is the CPU and memory at stock clocks?


    That last part is a good question, he might be running right at power limits, with his PSU, and when it gets hot enough, it ceases to be able to handle the load..... my 2 cents.
    Reply to dudmont
  4. dudmont said:
    mdd1963 said:
    remove case covers, and blow a fan onto mainboard, and see if it improves...

    A hard shutdown smacks of either thermals or PSU, quite often....(mainboard must be capable of supplying good power to both CPU, VRM circuitry, and to GPU thru PCI-e slot...)

    Is the CPU and memory at stock clocks?


    That last part is a good question, he might be running right at power limits, with his PSU, and when it gets hot enough, it ceases to be able to handle the load..... my 2 cents.


    Yes, the CPU and Memory are running at stock speeds. Both the GPU and CPU are running under 55 degrees Celsius. If the PSU shut down because of heating it wouldn't be able to restart; the system would just stay powered down.
    Reply to CamperJoe15
  5. What I'm saying is, is that your PSU may barely have enough wattage to handle your system when it's cool, when the system heats up, the PSU can no longer handle the wattage necessary for your system. It's only my theory, and to a degree dependent on your cpu being O/Cd and your GPU boost and most especially your power target being amped up. If you're running standard clocks and not boosting the power target on your GPU, then your PSU probably doesn't have a wattage shortage.
    Reply to dudmont
  6. MERGED QUESTION
    Question from CamperJoe15 : "PSU Causing Hard Reboot"

    So, my system has be hard restarting the past few weeks. It initially started with very graphically intense programs. It progressively has gotten worse and worse, even to the point of crashing when trying to install windows, close a web page (50/50), or save a setting on the BIOS. I have eliminated memory (memtest86 and windows memory diagnostic tools), GPU (MSI's Kombustor 3), CPU (prime95), storage (re-installed windows 10 multiple times on multiple drives), and temperatures (all components are running under 65 degrees Celsius). I feel like I have narrowed it down to the motherboard and the PSU.

    All of the voltages seem good, but I am hoping it is the PSU (Motherboards are more expensive and are a pain to replace, and I have a 10 warranty with my power-supply). I wired up a multimeter to my power supply, and observed it during one of these crashes. It completely loses voltage, waits for about 4 seconds, and reboots. This makes me think it is the power supply over the motherboard.

    This is really what I am double checking: If it was the motherboard causing the issue, would the PSU lose voltage? My understanding is that if the PSU was failing, it would lose voltage/turn off during a hard reboot. But, if the the motherboard was failing, the PSU would still show voltages.

    Any thoughts would be really appreciated.

    My system:
    i7-4790K
    MSI GTX 980 Gaming 4G
    16 GB 1866 RAM
    MSI Z97 Gaming 5 Motherboard
    EVGA 650 Watt Gold+ power supply.
    Reply to CamperJoe15
  7. Best answer
    Do you have another PSU, that you know works, and can handle the system load, available to swap in? Probably the only way to know for sure if the issue is your PSU.
    It's theoretically possible that there's something on the mobo, that could cause a short, and in the process trip the PSUs shut down circuitry.
    That being said, I don't think it's at all likely. The merged thread gives us more info, good info at that, and that info helps me to believe you've got a bad PSU(shame to hear btw, I have several EVGA PSUs). I'm not sure how you go about getting a replacement, via the warranty, but I hope that process goes smooth.
    Reply to dudmont
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