[SOLVED] 6700K High Temps at stress

maayan.lab · Dec 16, 2018

Hi guys. I'm getting really high temps when stressing the pc. At idle the temps are usually around 50s. When at high temps (about 98c-100c when stressed) the Corsair logo on my H115i turns red. Not sure where's the problem across the chain of the cooling system.

The pump seems to be working. I cleaned dust recently with compressed air so I'm not sure what might cause the temps.

Attached are two screenshots, one at idle and one after stress.

Idle

Stress

Red light on H115i when at high temps:

Occasionally I experience some crashes (the pc freezes, then restarts itself), not sure if related to the CPU temps, however, I tend to guess that it is the case.

The PC is only about two years old. Seems to me not reasonable that the thermal paste compound would already be dried. What could be the problem?

Darkbreeze · Dec 16, 2018

Those temps are way too high at idle and you are way past the point of potential thermal damage under a load. Do not run that CPU under load anymore until you resolve the issue. If you've had this cooler off you may have borked the thermal pad and may need to clean it completely off and apply a good thermal paste.

If not, and I doubt that is the issue, you may not have the water block fully secured to the CPU. Double check the mounting to make sure it is tight, but not overly tight.

Also, the pump can be running, but there could be an airlock inside the radiator or one of the hoses. Check both hoses near midway to see if they are both warm or only one is warm.

Check your fan configuration for the radiator fans to make sure they are running at a high enough speed/curve. You should also be able to check and compare the pump speed RPMs (And fans) to known good values you can likely find on the Corsair forums.

Something is either definitely wrong with the cooling because your clock speed and voltage are well within tolerance. Obviously not overclocked. You should not have anything even near those temps. I think either your pump has an airlock, is not seated or you have a broken shaft on the pump motor so that it is spinning but not turning the pump. I'd contact Corsair about an RMA immediately if you cannot resolve the issue quickly.

maayan.lab · Dec 16, 2018

Thanks for the quick answer. I did not take the cooler off at any time since I got the computer. About the hoses, when the high temps kick in, only one of them is warm so I guess that's fine. Should I look into replacing the thermal paste although the system isn't so old?

Dugimodo · Dec 16, 2018

lost my post and am not retyping it all.

Long story short even a basic air cooler does better than that, your pump probably isn't working and there's no way to tell with an AIO.
Either that or it's not attached right. If the pump sounds or feels like it's working that means nothing.

How old is the cooler?

maayan.lab · Dec 16, 2018

It's all about two years old. Haven't upgraded the PC since I first bought it (it was built for me by the computer store so they might have done a terrible job applying the thermal paste).

Edit:
Notice the difference between the H115i temps (which are mostly fine) compared to the CPU temps. Could that indicate that the problem's with the thermal paste?

Darkbreeze · Dec 16, 2018

There is nothing wrong with using that cooler so long as it "works" normally. Right now it is NOT working normally. You don't necessarily NEED to switch to an air cooler, but you DO need to sort out the issue with YOUR cooler.

The coolers temps are irrelevant. The only thing that matters are the core and package temps of the CPU, and yours are sky high.

They should not EVER be above 80°C, EVEN WHEN OVERCLOCKING.

If this was a prebuilt system that CAME with that cooler, I would definitely check the tightness of the water block on the CPU.

Try this, with the system running and core temp open, brace the back of the case against something so it will not move OR lay it on it's backside. Lightly press down on the water block on top of the CPU and see if if it moves at all OR if temperatures drop. If the problem is poor contact with the CPU they probably, but not necessarily, will.

How long have you had this system and did it have normal temps before under stress or did you not notice the problem until now?

Something definitely seems wrong because on your screenshots the RPMs of the pump AND fans, are LOWER than when it's under full stress and overheating. That is backwards. Something is not right. I would contact Corsair like I said. This unit might still be under warranty and I suspect that the pump has failed.

You could also just get a new cooler if you wish to. Either air or water would be fine but you'll want something good, not some cheap entry level unit.

maayan.lab · Dec 16, 2018

So I replaced the thermal paste.
Idle

While in BIOS, the temps are about 30c, only when Windows comes up the temps rise very quickly.

Upon start up the temp go up to 96c, pretty much the same.
Looking for other solutions to the problem.

Any other thoughts?

Edit: I just read the comment above, I tried pushing the block while running, did absolutely nothing.

Can the water cooling system be faulty even though one of the hoses is warm and the other's cold?

codygriffy · Dec 16, 2018

You need to just do what Darkbreeze said. You're going to completely destroy your socket and cpu if they already aren't that is. If it's under warranty that is the step you should take immediately. Switching out your cooler for even an air one might cause even more damage at this point.

Dugimodo · Dec 16, 2018

The impeller in most water blocks is magnetically coupled, which means there is no physical connection between the motor and the impeller.
Because of this the impeller can be spinning slowly or not at all and the motor will still keep spinning along merrily. Unless the cooler includes a flow meter there is no way to tell for sure (except when the temps are good) if the pump is working, but with the CPU hitting nearly 100c the hose should be too hot to touch comfortably, not just warm.

It's been suggested a few times now your pump isn't working and I'll suggest it again. I'd be calling the shop you got this from and asking if it's under warranty, better they fix it under warranty if that's the case.

But cool as water cooling is (pun itended) an air cooler is a simpler more reliable solution. I had my 6700K running at 4.4 Ghz on a hyper 212 evo for nearly 3 years then sold it to a friend and it's still going strong. And if it fails it'll just be a fan that is a 5 minute fix. So the easiest fix if you don't want to try a warranty claim is get another cooler.

maayan.lab · Dec 16, 2018

Thanks to all of you guys! Well it's all should be under warranty, tomorrow I'll go to the computer store and give it to them. Either if it's the pump or even the CPU itself (for example if the thermal compound inside the cpu is bad for some reason) - they'll find a fix for me.

Will definitely let you know what was the problem.

Darkbreeze · Dec 16, 2018

Just to address that previous comment, while I agree with most of what is being said here, going to an air cooler could not EVER cause "more damage". If there IS damage, it is already done. If there is not, then using a suitable air cooler would not ever damage anything. I personally dislike water coolers for a variety of reasons, not least of which is what you are experiencing right now.

You'd NEVER experience this with an air cooler. If the fan quit working, you'd know it immediately by simply looking at it. And there would never be any chance of a leak or a failed pump. Also, a high quality 140mm air cooler, especially a twin finstack model, tends to offer just as good of temperature over ambient thermal cooling as practically any 280mm or smaller AIO closed loop cooler. There might me some amount of variance in that depending on the cooler itself, but the benefits of better airflow over the VRMs and other components with a traditional configuration usually makes up for any small difference between air and water anyhow.

Both are viable, in any situation. I would only ever recommend water over air if aesthetics are a factor, or if a suitable air cooler will not fit within the case and an AIO will, or when using a custom loop cooling solution that is clearly superior to either an AIO or air cooler.

codygriffy · Dec 16, 2018

Darkbreeze :

Just to address that previous comment, while I agree with most of what is being said here, going to an air cooler could not EVER cause "more damage". If there IS damage, it is already done. If there is not, then using a suitable air cooler would not ever damage anything. I personally dislike water coolers for a variety of reasons, not least of which is what you are experiencing right now.

You'd NEVER experience this with an air cooler. If the fan quit working, you'd know it immediately by simply looking at it. And there would never be any chance of a leak or a failed pump. Also, a high quality 140mm air cooler, especially a twin finstack model, tends to offer just as good of temperature over ambient thermal cooling as practically any 280mm or smaller AIO closed loop cooler. There might me some amount of variance in that depending on the cooler itself, but the benefits of better airflow over the VRMs and other components with a traditional configuration usually makes up for any small difference between air and water anyhow.

Both are viable, in any situation. I would only ever recommend water over air if aesthetics are a factor, or if a suitable air cooler will not fit within the case and an AIO will, or when using a custom loop cooling solution that is clearly superior to either an AIO or air cooler.

Yeah I may have worded that funny. I prefer air coolers myself over water. I meant if he had an air cooler laying around for example, he shouldn't even try it. Taking it to the shop for warranty is a much smarter move with those temps being so out of control.

Darkbreeze · Dec 16, 2018

Please do not select any answer as the best answer UNLESS it is your thread, OR the thread is more than three months old and no best answer has been selected. Then, and ONLY then, is it ok for any regular member to select a best answer on a thread that they did not create. Thanks.

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[SOLVED] 6700K High Temps at stress

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