SYSTN/Temperature 2 shooting 100 degree C plus at random days

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Nilangan

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Nov 25, 2014
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4,630
Motherboard- DH67BL
Processor- i7 2600k (not overclocked, turbo is on)

On some days, the temperature 2 from open hardware monitor(SYSTN3 on Hwinfo64) shoots up upto 118 degree C, on other days it doesn't. Stays below 60 degree C. Few days back, I was just using chrome and the temperature shot to 80 degrees and stayed there for hours until I turned off my pc. The next day I played AAA games but it stayed below 60 degrees. Today after playing game for half an hour, I found that the temperature shot to 118 degree C but this time it went down after I stopped the game.
PCH temperature is below 60 degrees, GPU temperature was also stable. Didn't see any unusual temperatures on HWmonitor or Intel Desktop utilities.
Screenshot- http://imgur.com/a/anLVC

UPDATE- I was digging some more and found out a post from author of HWinfo and he mentioned the same mobo I have http://imgur.com/a/cLR14. This temperature is same as the one I see on open hardware monitor so I guess both are giving out shit values while gaming although I don't know if that's the case why it cools down while I don't run the game. Maybe you can answer.
UPDATE- I was digging some more and found out a post from author of HWinfo and he mentioned the same mobo I have http://imgur.com/a/cLR14. This temperature is same as the one I see on open hardware monitor so I guess both are giving out shit values while gaming although I don't know if that's the case why it cools down while I don't run the game. Maybe you can answer.
 


Sorry, you stopped replying to that thread. Plus there are some new updates. Like it happens on some days and doesn't happen on other days. And that day it stayed at 80 degree C constant, today it went to 118 C which is a lot higher and unlike that day it decreased to 50 degree in 15mins after I turned off the game. (PS- I fixed the CPU heating issue). Sorry I am just worrying.
 
Also you said the PCH could be heating but I see that the PCH temperature is below 60 degree so you can rule that out. I am looking forward to your reply.
 
You have started 3 Threads concerning the same problem:

Original Thread: Need some help with temperatures - http://www.tomshardware.com/answers/id-3480566/temperatures.html

2nd Thread: Sudden CPU temperature spikes and drops - http://www.tomshardware.com/answers/id-3481642/sudden-cpu-temperature-spikes-drops.html

And your 3rd (current) Thread: SYSTN/Temperature 2 shooting 100 degree C plus at random days - http://www.tomshardware.com/forum/id-3482188/systn-temperature-shooting-100-degree-random-days.html#19999149

It's inappropriate to start 3 Threads for the same problem. Which Thread would you like to work on?
 
ACCIDENTALLY REPLIED ON THE OTHER THREAD. YOU CAN CLOSE THEM.
I want to work on this thread. The other two threads are done. ( fixed my CPU issue, increased fan speed. ) I only now need a suggestion on Temperature #2 / SYSTN3 and I am done. My question is day before yesterday I was using just chrome and the temperature stayed constantly at 80C and turned down after I turned the PC off. Yesterday I used chrome for hours but the temperature didnot increase. I played game for 1hr no increase in temperature. Today I just played the same game for half an hour and that temperature shot to 118C but this time it cooled down to 45C in around 10-15mins after I stopped the game.
 

Thanks. that would be great
 
UPDATE- I was digging some more and found out a post from author of HWinfo and he mentioned the same mobo I have http://imgur.com/a/cLR14. This temperature is same as the one I see on open hardware monitor so I guess both are giving out erroneous values. But I am bothered because it looks so real. Increases gradually and shoots up while gaming while gaming and often cools down while I don't run the game. Maybe you can answer.
 
Nilangan,

Let's put your temperature questions into perspective by summarizing all 3 of your Threads:

You said in your original Thread that you only began monitoring temperatures within the last week or so. Many enthusiasts here at Tom's have been monitoring computer temperatures for over a decade across multiple platforms and configurations, and have observed a wide variety of hardware, firmware and software related thermal irregularities.

• Your i7 2600K was launched 1st Quarter 2011. “Tj Max” or Throttle temperature is 98°C.
• The H67 chipset on your Intel DH67BL motherboard was launched 1st Quarter 2011.

If I understand you correctly, your rig has been in stable operation for about 6 years.

• Your ambient temperature is 30°C.
• You're running at stock Core speed with Intel's stock cooler.
• You've only recently monitored temperatures with Real Temp, SpeedFan, HWMonitor, Open Hardware Monitor, HWInfo and Intel Desktop Utilities.
• Your screenshots show temperature anomalies varying from -106°C on the PCH to +118.5°C on Temperature 2 and SYSTIN3.

(1) 30°C (86°F) ambient temperature is quite a toasty environment for a PC. Standard or "normal" ambient is 22°C or 72°F, so you're 8°C above normal. This means all computer temperatures are 8°C (14.4°F) hotter than normal.

(2) Temperature monitoring utilities often don't correctly identify and assign values to sensors, or non-existing sensors, so it's not uncommon to see bogus values on sensors with ambiguous names such as Temperature “X” or SYSTIN “X”. It happens.

(3) Since the hottest sensors in a PC are located within the processor's Cores, the inconsistent and intermittent values you're seeing on other devices can also be due to faulty thermal sensors. It also happens.

Here's the bottom line:

The thermal behavior you've described occurs at random intervals, and is inconsistent and intermittent. Therefore, it's highly likely this temperature problem was pre-existing, but simply went unobserved. As I cited in your original Thread, there’s nothing you can do about it anyway, other than replace the motherboard, which is not a practical solution for hardware that's otherwise functioned properly for 6 years, and may continue to do so until it's retired due to obsolescence. Thermal sensors are either fully integrated or surface mounted devices (SMD's), so there's no user replaceable parts. -106°C and +118.5°C are clearly not real, actual, plausible or typical computer temperatures. As the author of HWInfo has suggested, this problem may be inherent to your motherboard, so just ignore it and don't worry about it.

Concerning your 2nd Thread: Sudden CPU temperature spikes and drops
 - http://www.tomshardware.com/forum/id-3482188/systn-temperature-shooting-100-degree-random-days.html

Don't worry about this either, because Core temperatures respond instantly to changes in load.

Intel’s specification for Digital Thermal Sensor (DTS) response time is 256 milliseconds, or about 1/4th of a second. Since Windows has dozens of Processes and Services running in the background, it’s normal to see rapid and random Core temperature “spikes” or fluctuations, especially during the first few minutes after startup, which should eventually settle. Any software activity will show some percentage of CPU Utilization in Task Manager, where unnecessary Tray items, Startups, Processes and Services that contribute to excessive or continued spiking can be disabled.

I still recommend whenever funds permit, that you replace Intel's stock cooler with a decent 120mm fan-class aftermarket cooler such as the excellent Cryorig H7 - https://www.newegg.com/Product/Product.aspx?Item=9SIA4UF2DZ6565&cm_re=Cryorig_h7-_-13C-000U-00005-_-Product&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-VigLink2-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=8167372&SID=j5rh1485gy000a1700053 This will not only significantly decrease Core temperatures, but the larger fan size will provide quieter operation at a lower RPM.

I hope this eases your concerns about PC temperatures. Enjoy your rig!

CT :sol:
 
You have answered my question. I would just uninstall all these temp monitoring tools except Intel Hardware Utilities and continue with my life. However I need on final reply from you before getting done with this thread. This is a little different question, wouldn't make a separate thread. A brief one would suffice. As I mentioned my PC dealer for some reason decided to connect the CPU fan on the rear fan slot on mobo. I just noticed this 2 days back. I realised this maybe the reason why fan speed doesn't change with cpu temp. I went to the BIOS and under the fan settings selected "CPU" so i am guessing the bios now knows this is CPU fan? I went on to play a game and got CPU temperature above 88 degree warning from Intel dekstop utilities (I recently installed this tool). and I immediately opened the monitoring tool and found the cpu temp to be 65C so I am guessing it was a few seconds spike regardless the fan speed never went past 1240RPM while on speedfan manual settings I get around 3000RPM max. Moving forward should I use speedfan while gaming? also, I installed the GTX1060 single fan GPU in January with a new PSU and added a new 4GB DDR3 1333Mhz stick to my existing 2GB+2GB pair last week. Could this be the culprit? can speedfan cause temperature issues? (An anwer with yes or no would suffice. Don't need an explanation this time). Btw thanks for your help. This was great.
 

Can't say for certain, as I can't see your BIOS options. If you don't have a motherboard manual, then download it and work with the fan headers and BIOS until you get the desired effect.


SpeedFan is not for the squeamish. It's complex, has a steep learning curve and is difficult to get it properly configured, but once you master the menus, it's really sweet. I've been using it for years, but for simplicity, I highly recommend Core Temp - http://www.alcpu.com/CoreTemp/ - It's a small footprint program that's accurate and very easy on resources.


No. Various utilities don't always get fan RPM correct, although the maximum fan speed for many Intel stock coolers is around 3,000 RPM. Also, simultaneously running more than one monitoring utility can sometimes cause them to interfere with the others.


If you don't understand how to properly configure SpeedFan, it can conflict with BIOS. If you can get BIOS setup to satisfactorily manage your CPU fan, then I again highly recommend that you use Core Temp.

CT :sol:
 

Its not conflicting with the bios. Even with speedfan setting restored and completely uninstalled, the fan speed never goes above 1240 even when the CPU is on 80 degree plus. Thats just 30% of fan speed. Also can I change fan speed from core temp? I cant find any option to do so.
 

Thank you for that information. I'm sorry you feel frustrated.


Thank you, but that's a little vague. 1240 RPM as shown where? BIOS, or which utility?


No.
 

Thank you, but that's a little vague. 1240 RPM as shown where? BIOS, or which utility?

On all utilities, HWinfo, Intel Desktop Utilities etc. I think I need to use speedfan while gaming.


 
As I said, if you can manage SpeedFan's steep learning curve, master the menus and get it properly configured, it's really sweet. Just make sure that you can hear the CPU fan actually spin up higher when SpeedFan is running, because depending on the motherboard's Super I/O chip and BIOS, SpeedFan isn't always 100% accurate regarding true RPM.
 


Thanks. When I run speedfan at 100% I can see the increased RPM on Intel Dekstop Utilities too so I am assuming its correct. However I will make sure of it. Thanks for your time man. Appreciated. Btw it would really help if you drop a link or two for a guide. I read some tutorials but none of them cover everything I need to master the tool.
 


Have I set this up correctly? http://imgur.com/a/fW5yc .. I pretty much understood everything else in the settings.
 
Nilangan,

It's best to use Core #0 to control CPU fan speed, since it's always the most active Core. Also, I would set 100% fan speed for a higher temperature, like around 75 or 80°C. It doesn't take much load to reach 60°C on the stock cooler, and I'm sure you don't want to listen to the fan cranking at high RPM.

I'm sure you have many additional questions, so perhaps someone else will help you. I'm done here.

CT :sol:
 

Well, the fan is quiet for some reason on 100%, I can hear it but its very less noice, doesnt bother me. However how I will tweak the settings more like you asked. The CPU has stayed around 45 degree today in 8.5hours of usage (chrome and stuff) so I guess I did a good job with speed fan. VR is 35 degree from start. Barely moves one or two degrees. PCH is also always on 59-60. The SYSTIN3 has went up gradually from 40 degrees at the time I started to 82-85 degrees in 8 hours. It isn't scaring me as much. I guess I need to uninstall the monitoring tools before I get high level OCD. Haha.

(I cant upvote comment or select best answer for some reason)
 
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