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Overheating CPU on H110i GTX


FuzzyWolf

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Posted

Hey guys,

 

So I've had this PC for about 3 years now and i've been overclocking the CPU (i5-6600k) at 4.5Ghz @1.31v. Then suddenly I started to have overheating issues starting about 2-3months (it never went above 80C, definitely not during gaming) ago so I decided to turn it down a bit(4.2Ghz @ 1.26v), I even went to BIOS and reset everything leaving it at stock 3.5ghz and it still overheats! 92C under Prime95 so I decided to change the fan(using phanteks) to Corsair AF140s. At first it was alright then it starts again seeming random, so next I went on and change thermal paste(used noctua NTH1) but the issues persists. But I was busy with exams and assignments so starting to diagnose the issue today.

 

Is it possible that my CPU has degraded because of OC to cause this? Not sure if its the cooler either so I might have to buy another cooler, probably cheap decent air one to test it out. But I suspect it is because I did find something weird last night. So I was playing overwatch and CPU went 80-86C so I decided to try turn the PC around(I turned it off first) and then lie it down on the side (I'm using NZXT s340 case) and it make some weird sound when I turn it on (clicking sounds?) and then try play overwatch again. This time it never went above 60, hovering around 53C. My overwatch is capped at 120~fps by using nvidia fast sync. It's weird too because the liquid temp got pretty warm to about 50C (never got this warm before, 19-20C ambient) as well but it seem like the pump is working fine so I am very confused. Also I tried the pump on "quiet" and "extreme" on iCUE and both seem to get the no temperature change. I also tried opening the front of the case to make sure airflow is not the issue, same results. Now when trying Prime95 went to 95C so I decided to stop it.

 

Right now I went back to Phanteks fan because for some reason it ran the same to better/cooler than the AF140s while being quieter. It's quite unstable, sometimes it works well then it doesn't. So yeah looking for advice.

 

EDIT: Sorry not the AF140, I meant ML140s

Posted
It's weird too because the liquid temp got pretty warm to about 50C (never got this warm before, 19-20C ambient) as well but it seem like the pump is working fine so I am very confused. Also I tried the pump on "quiet" and "extreme" on iCUE and both seem to get the no temperature change. I also tried opening the front of the case to make sure airflow is not the issue, same results. Now when trying Prime95 went to 95C so I decided to stop it.

 

 

The liquid temp tells you the problem. 50C is out of bounds for most environments, unless you are running multiple GPUs or started off with a 35-40C case temperature. While possible you had a momentary bubble blocking flow, it is more likely to be a more permanent obstruction and this is not unheard of this model. When you were moving things around, some of it broke loose and the flow improved. However, that is not likely to be a permanent state. Your H110i GTX temp (coolant temperature) should be about +4-7C above the room temp at idle and you might see a rise of +6C for a CPU stress test or sometimes up to +10C when running very GPU intensive games from the extra case heat. Either way, anytime you hit 50C something isn't right. The inconsistent nature is not uncommon when it's a partial blockage, but this will get worse. You need to move toward a replacement. Contact Corsair Tech support through the ticket system and start the RMA process or pick out a new one you would prefer and discard/RMA the current one for use a backup or in another system.

 

Not really responsible for your current problem, but the AF140 is a good case fan, but not much for radiator duty. Thin, steeply raked blades don't fare as well against the resistance and unless they are at very high speed won't move much air. Unrestricted, that AF design is very effective, just not for this use.

Posted
The liquid temp tells you the problem. 50C is out of bounds for most environments, unless you are running multiple GPUs or started off with a 35-40C case temperature. While possible you had a momentary bubble blocking flow, it is more likely to be a more permanent obstruction and this is not unheard of this model. When you were moving things around, some of it broke loose and the flow improved. However, that is not likely to be a permanent state. Your H110i GTX temp (coolant temperature) should be about +4-7C above the room temp at idle and you might see a rise of +6C for a CPU stress test or sometimes up to +10C when running very GPU intensive games from the extra case heat. Either way, anytime you hit 50C something isn't right. The inconsistent nature is not uncommon when it's a partial blockage, but this will get worse. You need to move toward a replacement. Contact Corsair Tech support through the ticket system and start the RMA process or pick out a new one you would prefer and discard/RMA the current one for use a backup or in another system.

 

Not really responsible for your current problem, but the AF140 is a good case fan, but not much for radiator duty. Thin, steeply raked blades don't fare as well against the resistance and unless they are at very high speed won't move much air. Unrestricted, that AF design is very effective, just not for this use.

 

First off, Sorry I got a bit confused when I wrote that, its the new ML140s not AF140s. For some reason I keep thinking its the AF because they also feel more airflow like instead of static pressure like the phanteks. And yeah those liquid temps got me worried (hitting 50C) that is why I went and got the ML140s.

 

Anyway, thanks for the advice. Considering this is the only PC I've got so I need it, I guess i'll get a cheap air cooler, get RMA done then put replacement in. Need to check the warranty first, I think its still on, they were like 5years? Yeah I heard about the bubble issue that is why I tried to lie it down on the side, but it only works for a bit then back to having issues again.

 

Curious though, how can a random blockage comes about? It's a completely closed system, been fine for the past 2 years.

Posted
Anyway, thanks for the advice. Considering this is the only PC I've got so I need it, I guess i'll get a cheap air cooler, get RMA done then put replacement in. Need to check the warranty first, I think its still on, they were like 5years? Yeah I heard about the bubble issue that is why I tried to lie it down on the side, but it only works for a bit then back to having issues again.

 

Curious though, how can a random blockage comes about? It's a completely closed system, been fine for the past 2 years.

 

Well, that's good. The MLs are absolutely radiator appropriate. Either way, fans might shift your coolant by 3C between a terrible fan and a good one. You are way past that sort of difference, so this is something else.

 

There is no way to know for sure without cracking it open (don't), but typically these blockages are caused by anti-corrosives and excess sealant coming together and forming a very unhelpful gooey, gummy mess. You may dislodge it temporarily, but the stuff has no where to go and it will build back up again, usually at the pump strainer. It happens a little too often on your model. There are a few internet shots of these things out there where people have opened it out of curiosity, but since it these things weren't really made to be put back together again, the process is terminal. Your warranty is 5 yeas and you should be covered, but will need a copy of the original invoice to establish the start period.

 

Yes, a cheap stand in is a good way to pass the the time and what I normally recommend. Don't get too ambitious with the replacement choice. Some of these air towers are extremely difficult to put in and make the process regrettable. If you have the option, do the Advance RMA with a credit card hold. Corsair will ship you the new cooler. You ship the old back within 30 days or so. That will cut the time in half. You will surely get a H115i back as the GTX version was renamed with a firmware tweak a while back. If you were looking to make a change to a different cooler, now is the time.

 

*Another thing to check is if the exhaust feels "cool" when the coolant is at 50C. The exhaust temp should be the same as the coolant temp, so when it reads hot and feels cool, that is a fairly indisputable sign the coolant is not transporting its heat to the radiator. This is usually a very compelling fact in your argument and might save you some back and forth with support.

Posted
Yes, a cheap stand in is a good way to pass the the time and what I normally recommend. Don't get too ambitious with the replacement choice. Some of these air towers are extremely difficult to put in and make the process regrettable. If you have the option, do the Advance RMA with a credit card hold. Corsair will ship you the new cooler. You ship the old back within 30 days or so. That will cut the time in half. You will surely get a H115i back as the GTX version was renamed with a firmware tweak a while back. If you were looking to make a change to a different cooler, now is the time.

 

*Another thing to check is if the exhaust feels "cool" when the coolant is at 50C. The exhaust temp should be the same as the coolant temp, so when it reads hot and feels cool, that is a fairly indisputable sign the coolant is not transporting its heat to the radiator. This is usually a very compelling fact in your argument and might save you some back and forth with support.

 

Hmmm I see, might do try ask them about the advance RMA. Well its cool down from now, still 20C ambient and PC is mostly idle except using chrome and liquid temperature is 36.7C. CPU temps are around 40-45C. I tried feeling the exhaust from the radiator its pretty cool. The thing is the top pipe feels pretty warm and the lower pipe not as warm? So it seem it is sorta cooling it. I'll just contact support and see what they say about it. If they agree to replace it, i'll probably stick with what ever they offer because apart from the current issue, I am happy with the performance.

Posted
*Another thing to check is if the exhaust feels "cool" when the coolant is at 50C. The exhaust temp should be the same as the coolant temp, so when it reads hot and feels cool, that is a fairly indisputable sign the coolant is not transporting its heat to the radiator. This is usually a very compelling fact in your argument and might save you some back and forth with support.

 

Just an update, I think instead of just saying the exhaust feels "cool" to support, I can back that up with evidence to support. Because I do have the commander pro, they do have those "thermistor" sensor things so I put one of it at the front (intake) and then the other at radiator exhaust. So I switch the fans back to the ML140s(its corsair's so they should be able to relate) and then set them to 100% speed and start stress testing. With room temperature around 22C, the coolant got to around 44C this time and stabilize around that. The exhaust air feels cool and according to the thermistor sensors its not much different from the intake air only about +0.7C increase from intake. The thermistor may not be properly calibrated for right accurate temperature but I tested it with max fan speed with PC on mostly idle so they both show same temperature(intake and exhaust) so I think the change/difference in temperature is what mattered, which in this case shows barely any change in temperature.

 

Here is the results: https://imgur.com/a/gjfSgLp

Posted
That’s how I double check mine as well with C-Pro thermistors on each radiator, although I didn’t mean to send you on evidence collection errand. There are many reasons your CPU temps can be high. If your case temperature is high, the coolant will be as well. However, there is only one reason for warm coolant and cool exhaust. It cuts directly to end troubleshooting step. They’re not going to ask for hard evidence, but the warm coolant/cool exhaust cuts to the chase and pretty much ends any further steps.
Posted
although I didn’t mean to send you on evidence collection errand.

 

Yeah I know, I just saw the opportunity to collect data to back my claims up when I saw the coolant getting warm again so I did it. Its kinda a habit of mine :laughing:

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