So, my company works with unreal, had some issues with my PC, changed some parts and after that, i worked with UE4 with no issues for quiet some time, and no problems.
The moment came where the project was being updated to UE5, and after making UE5 work properly, for some reason, at first quicker and now it takes some time (around 20 minutes), it restarts my PC, for some reason UE5 does and UE4 doesn’t, i don’t understand why, but it will probably become a problem in the future if i don’t manage to fix it.
I’ve tried everything, literally everything, updating the BIOS, nvidia drivers, it would be incredibly weird that it were a virus, it’
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s not because overheating because i have liquid refrigeration and my pc i usually pretty good in temperature.
So my only guess is that there is an error in the power supply that is causing this problem because of the resources unreal 5 consumes maybe (?), i can’t know tbh, tried everything to understand this.
If anyone can help, in any way, it’s really well recieved.
Try disabling lumen lighting & gi if it is too taxing for your PC. It seems to be very resource hungry. Once it is off get around the same performance as ue4
Test these functions in console during gameplay and see if it stops rebooting
r.Lumen.DiffuseIndirect.Allow = false
r.LightFunctionQuality = 0
r.TemporalAASamples =0 (<- this is anti-aliasing)
Thanks a lot! i’ll test it, in terms con resource consuming, it’s strange because my PC has 32 GB of RAM and a 3070 ti, so resources shouldn’t be a problem, but i’ll try those solutions and see how it goes
Does this only happen in unreal? Check your cpu temperatures and maybe if you have a modular power supply double check if all of the cables are a 100% connected (maybe something got loose?)
Before taking it to tecnical service (for the second time), it was restarting in general and it was unusable, they basically changed the motherboard and the graphics card and it got fixed (aparently)
And went quiet some time without anyproblems, only when opening UE5 was when the problems started to happen, for now, it has only happened ONLY in UE5, haven’t tried it with heavy games to test it out but, i guess i should.
I’ve checked the temperatures a thousand times and since the instalation is recent, everything should be properly connected in the PC (should).
I’m even thinking about buying another wire for the power supply but i think it would be quiet surreal that the problem is a wire.
Do not under any circumstance use cables from another power supply, it could fry your PC! It would have to be from the specific manufacturer and same model.
Oh no, don’t worry, when i say cable, i mean the literal cable to plug it in the external power source, dunno if maybe its the same i’ve been using for a long time, i don’t know if that can affect it somehow
Already did that a week ago, took every possible screenshot of every error that appeared when the PC restarted, but aparently it were all default errors with not too much to offer, i’m going to basically try to get the money back from the computer, because its completely surreal that the PC is still restarting after going through tecnicians 2 times, completely surreal
Out of curiosity, you said your PC just restarts when UE5 is open. Are no crash logs ever generated? Have you tried verifying your UE5 installation?
Also, does your CPU have an internal graphics it could be trying to pull from? Have you checked your Nvidia global graphics settings? I ask because it takes longer to crash, possibly meaning after your shaders have been built, you are having less of a problem.
Additionally, you said you have swapped some parts to have your PC work with UE4 properly. Just in case, here are the hardware and software specifications needed to run UE5:
I also have 3070 and it dies under UE5 and other heavy apps. Say thanks to nvidia vendors and their garbage 3000 series (just google rtx black screen, very common problem).
But there is a solution. Use afterburner or other software to downclock the GPU, modify core voltage/frequency curve and limit max freq to 1725 MHz (sometimes can be higher, depends on hardware). Also use t.MaxFPS or limit FPS in nvidia panel to some reasonable value (for editor 60-80 fps works good). That solved the blackscreens for me.
It could also be a transient spike on your GPU that your power supply might not be able to handle.
UE5 has a lot worse performance when it comes to tick calculations (still needs some optimizations) so maybe it’s just hitting your pc harder than ue4 hitting the power limit of your power supply.