Question CPU temp goes up really fast and PC shuts down

[khasual]

Hello people,

About two years ago I bought all new components:

Ryzen 5950x
Rog Strix x570e Gaming wifi II
DDR4 128GB (4x32) G.Skill 3600MHz Trident Z RGB CL18, F4-3600C18Q-128GTZR
Rog Strix 3090 OC edition
arctic liquid freezer 2 360
2x WESTERN DIGITAL SN850 1tb nvme
RM Series™ RM1000 — 1000 Watt 80 PLUS® Gold Certified Fully Modular PSU

I bought it mainly for 3d work/rendering and stuff like that. It all worked fine in the beginning, but I have not been rendering much lately so I have not noticed any problems. However, when I tried rendering in blender recently my pc keeps shutting down due to high cpu temp. It idles at 50-55 deg. But as soon as I hit render and the cpu load goes higher, the temp hits like 90deg real fast, within seconds (3-4 seconds), and the PC crashes.

What I did so far:
- Applied new thermal paste (though it is about a year old, but I kept it in a sealed bag and cooler temperature).
- Installed fresh windows.
- Updated bios.
- I even reset bios settings

None of what I did fixed the problem. Any idea as to what the issue might be?

Also on top of that, when I updated the bios, the boot time got A TON slower.

 

[General_Cool]

Go into the BIOS and turn off all of the fans EXCEPT for the pump. Once all the fans are off, listen to the pump/radiator. Can you hear moving liquid? (don't boot into Windows, stay in the BIOS)

If your pump is dead silent, it doesn't mean its dead, it could just be really quiet. Put the fans back to normal, and go back to doing whatever you do that causes the CPU to thermal throttle. Put your hand over the radiator (the exhaust side) when you see the temps start to rise. Is it cold or hot? Are the fans ramping up properly?

A 360mm AIO should not be causing any consumer desktop Ryzen CPUs to thermal throttle; these chips are very good at transferring their heat. Typically issues like this are caused by dead pumps. Since you have pretty much ruled out it being an improperly seated cooler and the system worked properly prior to this, we can rule out this AIO not being adequate for this CPU (it should be more than adequate).

 

[khasual]

T

Go into the BIOS and turn off all of the fans EXCEPT for the pump. Once all the fans are off, listen to the pump/radiator. Can you hear moving liquid? (don't boot into Windows, stay in the BIOS)

If your pump is dead silent, it doesn't mean its dead, it could just be really quiet. Put the fans back to normal, and go back to doing whatever you do that causes the CPU to thermal throttle. Put your hand over the radiator (the exhaust side) when you see the temps start to rise. Is it cold or hot? Are the fans ramping up properly?

A 360mm AIO should not be causing any consumer desktop Ryzen CPUs to thermal throttle; these chips are very good at transferring their heat. Typically issues like this are caused by dead pumps. Since you have pretty much ruled out it being an improperly seated cooler and the system worked properly prior to this, we can rule out this AIO not being adequate for this CPU (it should be more than adequate).

Hi thank you for the quick reply, the problem is that this specific cooler has one cable only for both the fans and the pump, so I can't really hook up only the pump.

But what you're saying is that even though I mentioned how the cpu temp behaves after literally 3-4 seconds, it's still possible that the cooler is faulty, not the cpu itself?

Also, I should mention, I tried disabling all the fans in bios, and the temp goes up real fast, even when I'm not doing anything at all.

 

[General_Cool]

T

Hi thank you for the quick reply, the problem is that this specific cooler has one cable only for both the fans and the pump, so I can't really hook up only the pump.

But what you're saying is that even though I mentioned how the cpu temp behaves after literally 3-4 seconds, it's still possible that the cooler is faulty, not the cpu itself?

Also, I should mention, I tried disabling all the fans in bios, and the temp goes up real fast, even when I'm not doing anything at all.

It is definitely not a CPU issue. CPUs are the only PC component (besides cases for obvious reasons) that will most likely work for longer than you are alive. It is very rare to see CPUs die period, let alone after two years like this.

You never answered my question; is the radiator getting hot to the touch or does it remain cool after the CPU temps rise? This is important for us to know, as it will tell us if the pump is dead.

Do you have another cooler you can test with?

 

[khasual]

It is definitely not a CPU issue. CPUs are the only PC component (besides cases for obvious reasons) that will most likely work for longer than you are alive. It is very rare to see CPUs die period, let alone after two years like this.

You never answered my question; is the radiator getting hot to the touch or does it remain cool after the CPU temps rise? This is important for us to know, as it will tell us if the pump is dead.

Do you have another cooler you can test with?

Sorry my bad, so I just did 3dmark stress test for about 10 mins, it's the only test I know of which would not crash my pc but keep the cpu at a decent load (25-30% ish), the temp went up to about 75-80deg. When I touch the radiator overall it's not hot at all. However, the part where the tubes connect to the radiator are slightly hot, not as much tho, so really only that area on the radiator was a little hotter. The other side of the radiator was not not hot to the touch at all.

Also I do have another cooler, Corsair H110i 280mm. But at this moment I'm out of thermal paste, so to test it out will have to wait for another 2-3 days.

 

[Phaaze88]

https://www.tomshardware.com/news/arctic-service-kit-freezer-2-aio

You can check if your unit is affected here: https://www.arctic.de/us/lf-service-kit

 

[General_Cool]

Sorry my bad, so I just did 3dmark stress test for about 10 mins, it's the only test I know of which would not crash my pc but keep the cpu at a decent load (25-30% ish), the temp went up to about 75-80deg. When I touch the radiator overall it's not hot at all. However, the part where the tubes connect to the radiator are slightly hot, not as much tho, so really only that area on the radiator was a little hotter. The other side of the radiator was not not hot to the touch at all.

Also I do have another cooler, Corsair H110i 280mm. But at this moment I'm out of thermal paste, so to test it out will have to wait for another 2-3 days.

It sounds like your cooler's pump is dead, hence why the tubes near the block are hot and get colder the further away from it you go.

According to what Phaaze88 posted above, you could likely have a defective unit, and this would be covered by the warranty. Either way, sending it in for the warranty repair would cover the problem regardless of whether it is the recall issue or the dead pump issue, as they will likely test the cooler to make sure it works.

 

[khasual]

Guys, thank you so much for all the replies, it's been very helpful! Thank you!

I will contact the shop and send it in for the warranty and see how it goes from there.

Again, thank you so much!

 

[khasual]

Hello again, sorry I have one more question. If I was going to swap the cooler completely and move to an air cooler, I was thinking Noctua NH-D15S, you think it would be sufficient for my cpu, 5950x?

 

[drivinfast247]

Hello again, sorry I have one more question. If I was going to swap the cooler completely and move to an air cooler, I was thinking Noctua NH-D15S, you think it would be sufficient for my cpu, 5950x?

Absolutely!

 

[bill001g]

Pretty much the only cpu that "needs" a big AIO are 13/14900k with the power limits turned off. Most other CPU chips can be cooled by many of the newer air coolers. Some air coolers test better than 240 aio coolers.

Lots of people like the noctua coolers but you are paying for brand name. I would spend some time looking at the reviews there are quite a few that will cool just as good for half the price.

The only other reason you would use a big AIO on a cpu would be if you wanted to run near silent fans. Since a 360 aio has a lot more physical radiator to dissipate the heat you can run 3 fans slower than the 2 on air coolers. If there was some way to physically build a air cooler with a radiator that was as big as 3 120 fans it would likely perform the same as a water cooler.

They have really figured out how to transfer the heat using heat pipes almost as good as using liquid water.

 

[khasual]

Thank you for the quick reply! I will prob go for the noctua, depending on what happens with the arctic aio.