Drastically changing temperatures

[morgant5796]

So, I recently had a GPU burn out on me (EVGA 1080, figured it was part of the defect or whatever), and didn't think much of it. But since then I've been keeping tracking of my temperatures. Sitting idle my CPU temps chill around the 20 degree Celsius mark, my new 1080 (RMA'd a new one) doing the same, usally low 30 celsius, sometimes high 20s. I'm using an H100iv2 corsair link liquid cooler, and the temperature of that resting is 33.6 Celsius. If I launch steam or use google, my CPU temps wills shoot up to the mid 30's, but I'm watching them randomly shoot up to 50. Same with my package, whatever that is. Also I noticed my CPU Core 1 is missing from the information on Corsair Links little desktop app. I've been rather scared to try any hardcore games since changing out my GPU, but I play a -very- old game called Neverwinter Nights. I mean this thing porbably released in 2000 or so, and THAT sends my CPU cores to the 50s, and even 60s. I had it set so that at 70 Celsius my fans will got to 100%, which -instantly- makes my temperatures drop from high 60s/70, to 52ish and sometimes will drop to 48ish. Really confused, because it seems unrealistic my temperatures are changing that much that fast, and I'm also a little worried that my liquid cooler is working correctly if a game as old as that is causing so much stress.

Primary Issue: A) Core #1 missing from Corsair Link app (this is new, I just updated, maybe thats why). B) Core 1 is sitting -very- high in the 60's-70's when running an old game. C) Temperatures are drastically hopping.
My specs are as follows:
MOBO: Gigabyte Tech. 70X-Gaming 7
Processor Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
Video Card: GeForce GTX 1080
RAM 32 GB (4 g.skill ripjaws)

 

[jr9]

I can't speak for Corsair Link because I don't trust anything other than HWmonitor when it comes to temps. Too many dodgy yet nice looking monitoring tools.

The CPU temp changes are normal as are your CPU temps, the CPU clocks itself up when work needs to be done asap (loading a web browser). When the clock multiplier suddenly doubles and the voltage goes up, the CPU heats up fast. Try HWmonitor and see if you get your cores changing that instantly. Some monitoring programs update slowly or just suck in general.

 

[morgant5796]

I'll give that a try and be in touch. Thanks.

 

[morgant5796]

Alright. Downloaded CPUID HWmonitor. Been on PUBG for about 20-30 minutes. Played a match. I've got 4 cores and their max temp reached are 83, 83, 78, and 77 Celsius respectively with the package at 83. In lobby they sit around 40, 40, 35, 35. Obviously the max was a fluctuation, as they all seemed to sit in the 70s when I was checking throughout the match. GPU is sitting around 65, which I'm relatively fine with. Little worried about my CPU getting up to the low 80s though. Isn't sitting under 80 optimal?

On my Mobo, I see Fans: Fanin3. This one is on. Below that I see Fans PWM: and none of them are being used. There's 3 of those.

 

[jr9]

With that cooler that load seems about 10 degrees high. I'm looking at a benchmark from good source and they are getting with a similar CPU 7.9 over amblient idle and 44C over ambient load. If you have a room at say 20C, you can expect with an idea installation with no mistakes or issues with the cooler temps of 28C idle and 64C load at low fan speed. The temp goes lower with higher speed. I actually thought you had a 120mm that aren't as high performance.

Are all your case fans running? Try running a game with the side panel off. Also see what speed your CPU cooler fans are at, maybe they are running slower. 80 seems a high for a 240mm cooler. I have minimal experience with AIO coolers but see if you can get that temp down.

 

[morgant5796]

Oh, my liquid coolant temperature reached 45-50 while gaming as well, which seems high. I have 50 as the set to kick start my fans to 100% as 45 is when the red light comes on, but I was told thats a bit low of a number. Anyhow, according to the app, my corsair link fan is not on when idle, and I don't notice it on when gaming unless the 100% fan setting kicks on. Not sure how to check my exact fan speed, all I know is that above my power button I can change my fan speed from L to H, and I keep it on H.

 

[morgant5796]

As for my case fans, they all appear to be running. I have a cool master case and it came with many fans. They're all on, and they have the CM logo, so I know they're the case fans. I don't even see a fan that's not on besides the GPU's, but that's normal; it kicks on when it needs to. The corsair fans are mounted right above the actual cooler at the top of the case. They are running as well.

 

[jr9]

Those AIO coolers are so tricky sometimes, especially the ones with their own software. This is why I like big air coolers, they just work and if my temps are too high I know to try to mount it again or check my airflow. This benchmark from gamernexus gives a peak thermal stress test 65-70C MAX at the lowest fnn speed : / 80 seems too high. Sorry I have very little hands on knowledge with these AIO coolers, all I can suggest is try to remount it with new paste that doesn't have too long of a break in time.

Here's the benchmarks I'm looking at https://www.gamersnexus.net/hwreviews/3087-evga-clc-240-review-vs-corsair-h100i-v2

Maybe try to remount and repaste and see if that gets your load temps down to 65-70. Your CPU has the same TDP as the test CPU. I'm taking room temp as 20C flat so 64C would be golden.

 

[morgant5796]

Pretty sure it came prepasted, so I didn't put any. I suppose I'll give that a shot. Very tempted to change my cooling system, liquid cooling seems to give a lot of people issues. For now I'll try reinstalling it and see where that gets me.

 

[morgant5796]

Think I may have figured out some of the issue. Corsair link's app was set on Balanced, so the pump was only running at 800ish RPM. I'm not sure what it -should- be running at, but I've seen on forums people saying 1800 or so. I changed the profile to Performance and it shot up to 1700s (fluctuating in that range). Going to see if performance mode with the higher RPMs does anything to help my liquid temp and my CPU temps.

 

[morgant5796]

Update: Played a full match (got first place actually) on PUBG, highest temperature recorded was like 75ish or 76ish, but as far as I saw when I was tabbing out my CPU was chilling in the 60s to low 70s just jumping back and forth. Average of 65, I'd said.

Water temp was 46.5 when I finished.

 

[jr9]

Can you post your 3 idle numbers in you H100iv2 box under Configure in link? Temp, Fan RPM, Pump. I think on performance the pump is supposed to go up at least 2500RPM and just stay there as that cooler doesn't have variable pump control. Also make sure your cooler is using the CPU header on the board and it is set to max speed in the BIOS if you didn't already do this.

If all else fails, I would try to remount and repaste the cooler. I'd like to see it working though!

 

[morgant5796]

I'll do that. Never messed with my BIOS, so I'll try to figure that out becuase I'm almost certain the cooler is plugged into the CPU header.

 

[morgant5796]

THanks for all the help, JR9. It appears that I was plugged into Sys_Fan for the past YEAR and my Pump's fan was never working. Fortunately, my temperatures never got too high off of that, but I'm almost happy my GPU went bad because I'd have never started to look into this. I'm new to building and such, so computer knowledge is slim XD. That said, it appears to be working fine (at least the fan and pump are working, the pump especially at much higher RPMs, 2000! on balanced). I also finally went into my BIOS and set my CPU fan to Full, which was something I needed to do, but now that the fan is working it will actually have an effect. Fortunately, no damage to my machine over the past year from overheating.