Suddenly getting high temps for no reason

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cjfick1982

Sep 25, 2018
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System specs are:
fx8300
MSI 970a-g43 MB
Corsair Hyrdo h100v2 240mm water radiator
16gb corsair ram
GTX 960
750w psu

here is my issue. My computer was running perfectly fine the other day with the system running at the following temps
cpu:109 F
gpu: 82 F
MB: 100 F
according to advance system care these were my temps at idle. Today upon booting up my computer with making zero changes suddenly had all the fans maxed out with the temps at
cpu:230F
gpu:226F
MB: 230F
I would like to know some ideas on why I suddenly have a huge temp increase in everything on my system.
 
First, you need to make sure that the cooler is properly powered. Many, many, many folks make this mistake. Your Hydro H100i V2 is powered from the CPU fan header that it's connected to. In order to operate properly, it needs to have a full 12V at all times. This means that you need to go into your BIOS and set that fan header to 100%. Unfortunately, if you've been running for a while without being properly powered, that can lead to pump failure eventually.

Which brings me to the second point - it's possible that your pump has failed. You'll need to get the temperature of the coolant from Link or iCue; that will be a better indication of pump failure. However, if you fans are maxed out at boot, that usually means that the coolant temperature is high (over 40C). Take a look at http://forum.corsair.com/v3/showthread.php?t=174442 as well.

That said, a pump failure shouldn't cause your GPU to spike in temperature as well.

Finally, a tip - post system temperatures (and monitor them) in Celsius, not Fahrenheit. All of the specs and reference materials are in Celsius and most folks that work with system temps are used to seeing Celsius. I had to do a double take on your temps and mentally estimate the corresponding Celsius temperature.
 
1: My computer does the thermal shutdown before I can check the temps with any other program.
2: I've been able to game on my computer with my corsair for the past 2 weeks it was installed. Never showed over 140 degrees.
3: in Bios my computer showed the correct temp for the motherboard but showed 106C for the cpu. And did the same thing when swapping in my old FX4100 cpu which worked perfectly when I replaced it with my FX8300.
 
1: That's not good.
2: I'm assuming that's Fahrenheit?
3: That's too high for the CPU. Can you validate that the CPU_FAN header is set to 100%/Full Speed? How do the pump hoses feel? Is one warmer than the other? Does the pump's LED come on?

I'm beginning to think that we have a pump failure here. Not setting the CPU_FAN header correctly can contribute this this and I don't think we've determined if that's been set. Make sure that it is. Still, if you are within your five year window, you'll be able to RMA the pump. When you get the new one, make sure that you set that fan header ... unfortunately, that tidbit of super-important info is nowhere in the installation guide.
 
yes it was in F
Yes the led and pump work and the fans were spinning at their max at 2500rpm. I can feel the vibrations in the hoses from the water flowing. I'd like to point out that the FX4100 and FX8300 are showing the same temps in the bois and in advanced system care at the same points upon booting up. Which seems a bit hard to believe that they would make the amount heat in the same amount of time.
 
If they aren't getting properly cooled, they will. What does the temperature of the tubes feel like? Is one warmer than the other?

If it's not a pump failure, then it's a blockage. Regardless, start the RMA process.
 
I just realized something. All my case fans were spinning much faster then usual despite being just 3 pin designs. I bet my PSU is failing and was causing a power surge through my system.
 


Nah ... just responding to the hot CPU. You did validate that the CPU_FAN header is 100% though, right?

Although, TBH, it won't matter at this point, I don't think. And I don't think that it's a PSU issue.
 
Well if it was a blockage then I shouldn't be able to feel fluid flowing through the hoses and I can tell that there is.
 
No, it'll still feel like there's fluid flowing. And there may be some.
But the fluid isn't cooling. It's likely not moving out of the pump head to carry the heat away so it just builds. That's why I've asked if one hose is warmer than the other. Also, check warmth of the pump head.
But this kind of rapid buildup of heat is indicative of a complete pump failure or blockage. Period. Even a poor mount won't heat up this rapidly.
 
Just finished trying my system with the previous ID-COOLING SE-902V3 cpu cooler. My computer didn't even make it to my home screen before the thermal shutdown occurred.
 


This is obvious, but you have applied new thermal paste, right? I would assume so.

There is another thing that can cause your CPU to run at full load and hit 100C and above: a virus or malware. You can go here to download the free version of Malwarebytes to make certain THAT is not the problem.

I mention this because I had that very problem. I'm pretty cautious but somehow I got infected with a trojan type virus and was able to use Malwarebytes to detect and quarantine it so that I could delete it. This may not be your problem but a simple scan of your system can make sure it isn't the problem.
 
I never tried overclocking as it was recommended not to with the MSI 970a boards.

Yes I put fresh thermal paste on the cooler. roughly a pea shaped amount.

I would need to find a way to turn the thermal shutdown off in order to make the computer run long enough to do a virus scan.
 


Well, that's not good. I've read that you've tried two different water coolers and are still getting really high temps, and your fans are spinning much faster than normal, and your temps get high so fast that you can't even run a virus scanner.

Don't know what to suggest here but to check if there are any broken or bent pins where your CPU is seated. If not, could there be a problem with the motherboard? A short or something. You did mention the PSU. Could it be sending too much power through the CPU connector? I just don't know, but at least check the CPU pins on your motherboard.









 
well my new gigabyte MB just showed up and I finished installing it. The issue is still going. I guess this means my PSU went bad on me. it should show up some time tonight and I'll see if my problem persists with the new PSU
 


Well, you may be left with replacing your CPU. ...And have almost enough components for a second PC.

I've never heard of a CPU going bad unless overclocking shortened its life, but a replacement of it, after all, may solve the issue. Hoping the new PSU fixes things so you can stop there. Good luck!
 
None of the temperatures have changed? even the case?
Where do you have this PC located? It sounds like it's in a sweatbox and cannot get cool air to begin with.

I've had a few that put there PC in cabinets and get the same effect. This required making holes so the PC could suck in cool air from the front and expel it out the rear of the cabinet.
 
Something really funky here. Cpus only go into thermal shutdown whet they decide they've had enough. Has nothing to do with the mobo, sensors, software or even bios. It's hard coded into the cpu to shut down.

Even barring that, there's no way a mobo, gpu, and cpu will all see 230°F (110°C) simultaneously. You'd be seriously lucky to see a mobo(case) temp of 50°C in a case with lousy airflow. You'd have to shut down all the case fans and redirect cpu/gpu temps back into the case to get that. Assuming that's not done.

I'm taking it as you are assuming it's thermal shutdown due to the rediculously high temps, without verifying it as such. Malware does not behave in such a manner, nor do Trojans, both being internet based info grabbers and senders, but a boot virus/root kit can.

My suggestion is a complete repartition of the drive, format, and then a full clean install of windows. Save nothing. If you have an older backup, one not done recently, good, but don't use anything recent or you might just reinfect the drive.

I'm betting you have a nasty virus that's reporting bad temps, then simply using windows own shutdown command to shut you down.
 
Turns out Devbiker was right all along about my corsair hydro. I put the cooler that came in the box with the FX8300 and my computer is working good again. Although I'm intrigued on why my other air cpu cooler failed to work but the stock one did.
 
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