Question PC reboots while gaming, but not during stress test ?

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HonaZak

HonaZak

May 3, 2025
30
2
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Hi.
I built my PC eight months ago and have been experiencing this problem ever since. After a while in game, sudden black screen appears, and reboots into windows afterwards. The only clues I’ve found are a critical error (41 - Kernel-Power) in the Event Viewer and a critical hardware error (193 - LiveKernelEvent) in the Reliability History.

Here are my specs:
MB: MSI PRO B650-s wifi
CPU: AMD Ryzen 5 7600X
GPU: NVIDIA GeForce RTX 4070
RAM: Corsair 32GB KIT DDR5 5600MT/s CL40 Vengeance RGB Grey EXPO
Cooler: Endorfy Fera 5
Storage: Apacer AS2280Q4X 2TB
PSU: GIGABYTE P750GM

Just a few additions:
PC has been to 2 different repair shops, both times returned with no reboots happening.
I have already replaced PSU. I measured a peak CPU temperature of 96°C, but before the reboot, temps are usually around 85°C, so it doesn’t seem like an overheating issue.

I would appreciate any tips or suggestions.
 
Last edited:
HonaZak said:
I have already replaced PSU. I measured a peak CPU temperature of 96°C, but before the reboot, temps are usually around 85°C,
so it doesn’t seem like an overheating issue.
Click to expand...
Those are very high temperatures.
Upgrade cooling of your pc.

What pc case are you using? Does it have mesh front? or closed front?
Gaming grade systems require good cooling. With closed front overheating is inevitable.

Can you show a photo of your system with side panel removed?
(upload to imgur.com and post link)

BTW - your PSU is of those exploding ones. I wouldn't trust RTX 4070 to it.

View: https://www.youtube.com/watch?v=aACtT_rzToI
 
SkyNetRising said:
Those are very high temperatures.
Upgrade cooling of your pc.

What pc case are you using? Does it have mesh front? or closed front?
Gaming grade systems require good cooling. With closed front overheating is inevitable.

Can you show a photo of your system with side panel removed?
(upload to imgur.com and post link)

BTW - your PSU is of those exploding ones. I wouldn't trust RTX 4070 to it.

View: https://www.youtube.com/watch?v=aACtT_rzToI
Click to expand...
Even though this makes total sence, I find it very unlikely to be the cause. I measured 96°C during a CPU stress test, which the PC handled fine. While gaming (when the reboots are happening), temps reach about 85C. Also 7600x is apparently desgined to run at 95C.
 
What is the CPU temp at idle? 88° while gaming looks hot to me, even for the 7600x. According to reviews, it should be around 70-75° in games.

And although Zen 4 CPUs are "designed" to run hot, you need to take into account your global temperatures. If you have bad airflow in your case and everything is warming up over time, at some point the system can get unstable. Look at the GPU, drive, chipset and RAM temperatures in HWiNFO and make sure they all stay within the thermal limits. For example, DDR5 RAM can become unstable if it reaches high temp like 70°.

You could also try to run for a while with the case open and see if it still crashes.

And a system can definitely be slightly unstable so it only crashes once in while like after a couple of hours of gaming. This is annoying because it's hard to figure out why since it can take a long time to reproduce the problem (I've seen so many posts from people saying something like "the problem is fixed thank you so much guys" just to come back a couple of days later to say "crash happened again yesterday"). And it can be anything (RAM, CPU, motherboard, PSU, GPU). But according to my experience, it's most often the RAM.

You could run a memory test like memtest86 or the Windows memory test tool. I also like the AIDA64 stability test because it fully loads both the CPU and memory. You could also disable expo and see if it still crashes.
 
JayGau said:
What is the CPU temp at idle? 88° while gaming looks hot to me, even for the 7600x. According to reviews, it should be around 70-75° in games.

And although Zen 4 CPUs are "designed" to run hot, you need to take into account your global temperatures. If you have bad airflow in your case and everything is warming up over time, at some point the system can get unstable. Look at the GPU, drive, chipset and RAM temperatures in HWiNFO and make sure they all stay within the thermal limits. For example, DDR5 RAM can become unstable if it reaches high temp like 70°.

You could also try to run for a while with the case open and see if it still crashes.

And a system can definitely be slightly unstable so it only crashes once in while like after a couple of hours of gaming. This is annoying because it's hard to figure out why since it can take a long time to reproduce the problem (I've seen so many posts from people saying something like "the problem is fixed thank you so much guys" just to come back a couple of days later to say "crash happened again yesterday"). And it can be anything (RAM, CPU, motherboard, PSU, GPU). But according to my experience, it's most often the RAM.

You could run a memory test like memtest86 or the Windows memory test tool. I also like the AIDA64 stability test because it fully loads both the CPU and memory. You could also disable expo and see if it still crashes.
Click to expand...
Thanks for your reply. Idle CPU is about 45C package. I just tried removing my glass pannel, adding one fan inside and one big fan outside the case. Both fans blowing with the airflow. Still rebooted within the same time as before. I tried multiple stress tests, including those you metioned, and every single one passed without any problem.
 
If it happens only when gaming and not during CPU/RAM stress tests (and the RAM passes all tests), then it means that it only crashes when the GPU is running, which means it's likely either a problem with the GPU or the PSU (power draw is at its highest when gaming since the GPU is running at max). As John said above, maybe replacing the PSU with a better model would fix your problem. You could try something like the Corsair RM750X and if it's still crashing, then you know it's not the PSU.
 
I have also run GPU stress tests without any crashes. The fact that I have already tried different PSU, and the issue persisted makes it very unlikely that the power supply is the cause.
 
Last edited:
HonaZak said:
Hi.
I built my PC eight months ago and have been experiencing this problem ever since. After a while in game, sudden black screen appears, and reboots into windows afterwards. The only clues I’ve found are a critical error (41 - Kernel-Power) in the Event Viewer and a critical hardware error (193 - LiveKernelEvent) in the Reliability History.
Here are my specs:
MB: MSI PRO B650-s wifi
CPU: AMD Ryzen 5 7600X
GPU: NVIDIA GeForce RTX 4070
RAM: Corsair 32GB KIT DDR5 5600MT/s CL40 Vengeance RGB Grey EXPO
Cooler: Endorfy Fera 5
Storage: Apacer AS2280Q4X 2TB
PSU: GIGABYTE P750GM
Just a few additions:
PC has been to 2 different repair shops, both times returned with no reboots happening.
I have already replaced PSU. I measured a peak CPU temperature of 96°C, but before the reboot, temps are usually around 85°C, so it doesn’t seem like an overheating issue.
I would appreciate any tips or suggestions
Click to expand...
Ryzen 5 7600X max temp is 95 C
I would expect it to throttle before that temp is reached.
96C is 204.8 F

also, at higher temps electronics uses more power which also causes higher temps. You do not know if the motherboard power protection circuits reset the cpu and caused the issue.
(for cases where cpu throttle was disabled in bios)

gpu max temp is 90C, 200w
i would check the 16 pin power connector for damage/char and make sure there is a good connection. If it is not, then the card would try to pull the extra power from the pci/e bus if it pulls too many watts then the motherboard protection circuit kicks in and resets your CPU. (no memory dump or bugcheck recorded)
 
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Your temps are WAY too HIGH. Maybe consider a 1000+ Watt PSU for your system. Default the motherboard settings. Do you need that much overclocking??? What are you trying to accomplish by over driving your PC?? Please advise from an old school gamer and PC builder. I am 61 years old and have worked on PC's for 35+ years. Please kindly post your results. Thank you.
 
digitaldata77 said:
Your temps are WAY too HIGH. Maybe consider a 1000+ Watt PSU for your system. Default the motherboard settings. Do you need that much overclocking??? What are you trying to accomplish by over driving your PC?? Please advise from an old school gamer and PC builder. I am 61 years old and have worked on PC's for 35+ years. Please kindly post your results. Thank you.
Click to expand...
I am not overclocking anything. My motherboard setting are default.
 
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Reinstall cpu cooler.
Double check if plastic protective film has been removed.

pxl_20240714_161633184.jpg
 
Please upgrade your cooling system. your temps are too high. Maybe consider upgrading your PSU to 1000 Watts + for your PC. I have run 1000+ PSU's in my systems for many years with NO power issues. OVERCLOCKING = High Heat. Unless you have adequate cooling capacity. Why do you need to over drive your PC??? Check your system SPECS and run it in the parameters it was designed for. The overall FPS gain is marginal. Just advice from a 61 yr old Gamer and PC Builder. Cheers and Success in your diagnostics.
 
HonaZak said:
I am not overclocking anything. My motherboard setting are default.
Click to expand...
Mobo being default doesn't mean anything, show pics of the CPU tab in bios, if the settings are on auto go through each of them and try to see what the actual number is they use.
The only way to get that high temps with gaming is either something wrong with your cooling or overclocking.

Also gaming is much more single core than benchmarks, so on benches all cores get pushed which limits the amount of pushing that is possible to a much lower level, in gaming only a couple of cores get pushed and thus pushed much higher, high enough for them to crash.
 
TerryLaze said:
Mobo being default doesn't mean anything, show pics of the CPU tab in bios, if the settings are on auto go through each of them and try to see what the actual number is they use.
The only way to get that high temps with gaming is either something wrong with your cooling or overclocking.

Also gaming is much more single core than benchmarks, so on benches all cores get pushed which limits the amount of pushing that is possible to a much lower level, in gaming only a couple of cores get pushed and thus pushed much higher, high enough for them to crash.
Click to expand...

These are all CPU settings I could find:
https://imgur.com/a/sQX0feC

View: https://imgur.com/a/sQX0feC

Do you have anything specific to look at? Most of the auto settings have only enable and disable option. I use HWMonitor and the individual core temps do not exceed package temps.
 
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