Hey, has anyone experienced a computer restart due to CPU overheating when creating a new project with UE5.4.3?
tl;dr: look into how the CPU is being cooled
The described behaviour indicates inadequate cooling. If you can’t run the CPU at 100%, you need a more efficient cooling solution. And yes, starting a new project does take a lot of CPU processing power. However, if you can’t sustain 100% load for 30s, you have a serious issue at hand unrelated to running the engine. Do investigate ASAP.
Out of sheer curiosity, new (blank) project launch; all cores:
1 core:
The 3 spikes on the left is the ever resource hungry Epic Launcher, the middle big 100% spike is the project launch. The whole sequence is maybe 10s long. Idle 35°C → 42°C → back to idle temp. A modern (hot Intel) CPU with a mid-range aftermarket air cooling.
A large project (or compiling shaders!) is a different story, ofc.
Actually, I don’t get this problem with other engine version. So I don’t think It’s a problem with my hardware. and I didn’t get this problem before updating to 5.4.3.
Not that it helps you but, at least on my end, the behaviour observed above applies to 5.3 and 5.4 (with hotfixes). Perhaps you could provide more details.
- which process is hogging resources?
- are we running Windows?
- which CPU are we talking about?
- how do you know you’re overheating and not just crashing, how are you monitoring it?
I don’t get this problem with other engine version
Does it matter? At least you know you have an unstable PC, prone to overheating and crashing. Address that ASAP rather than blame software. The CPU is supposed to run at 100% for prolonged time. If it cannot, you need to look into hardware. Any demanding application will cause the components to heat up the same way (bar some low level benchmarks that stress test beyond what normal load is - like Prime95 mixed with 100% GPU load making its coils whine).
It’s utterly possible, of course, that UE 5.4.3 hogs more resources while launching a project. However, it should not matter to a stable system whatsoever.
On the other hand, there is the ongoing, probably largest in years, scandal revolving around the 13th and 14th gen Intel chips. The issues do manifest in Unreal Engine a lot, apparently.
Just to add to the Intel remark, it is best to download a fresh version of bios for your PC if you have 13 or 14 gen.
That should for now limit the amount of voltage that the CPU gets ensuring that it does not self damage due to over volting. Untreated it will cause instabilities & with time it can lead to irreversible CPU degradation.
Intel is working on fixing it’s microcode in the meantime.
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Pudget has a new piece spanning across years and indicates failure rates - in-shop & on consumer’s end:
MFW sitting on the 13700k:
I’m using AMD and you are right, I need to clean my cooling.
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