CPU almost +100°C

Feb 18, 2018
2
0
10
SOLVED:

The DVI ports of my GTX 780 Poseidon are somehow bugged. The card was running at 800Mhz in idle and sitting at about 50°C.
Unplugging the monitor I rarely use let it downclock to 300Mhz and idle at 32°C.
THIS somehow fixed the CPU core temps, letting them cool down to 35-40°C idle!!! (Fan speed sitting at 800-1000rpm).
CPUTIN (sockettemp from motherboard) is still at 85-90°C, so that is definitely a broken sensor. Luckly it doesn't throttle the CPU, as only coretemps matter.
Stresstesting the CPU gets him to 70-75°C, so thats perfectly fine for a stock cooler (30 degress away from throttling).
Ordered already an aftermarket cooler.. Well, at least I can safely overclock it now :)

Conclusion: After IT losing magic to me, sometimes there still is magic xD

********************************************************************************************************

Hello @ll

After my graphicscards fans stopped spinning and repairing them, I took a look at my CPU temps and they are getting to +98°C when stresstesting with AIDA64.

It's an i7 2600 (non-k) with the intel stock cooler.

Unlike the graphicscard, which was getting insanely hot (could feel very hot air around it), I'm not feeling any heat when opening my case and touching the Heatsink or the area around the CPU / air.

Now I already applied new Thermalpaste (old was crusty, didn't touch it for about 6 years), made sure the heatsink is seated properly (did it twice, it's rocksolid), but the temps only got about 10 degress lower on normal use (surfing, gaming), nothing better on stressing. I set the CPUFan to always run at 100% now, so the "better" readings could be because of this.

It takes about 10 seconds to change the temps from idle to load results.

Core Temps:
Idle: +50°C
Load: ~ +100°C
Fanspeed set to 100% with FanSpeed (2600rpm)

Don't know what those tempreadings are:
Idle:
SYSTIN: +31°C
CPUTIN: +85°C
AUXTIN: +48°C
TMPIN3: +34°C

Load:
SYSTIN: stays
CPUTIN: hovers from +27°C to +33°C
AUXTIN: stays
TMPIN3: +80°C


Could these be some misreadings? Never experienced any issues with my system.
Where are those sensors for the CPU actually located? In the CPU itself or on the mobo?

EDIT: Forgot to mention that the fan spins at about 1000-1200 rpm (30-40%) when set to auto and idling, cpu temp reading says 50-60°C in OS and BIOS.

EDIT2:
http://img4host.net/upload/191712045a8af75426002.png

notice the core vs cpu temp. reading!
 
Solution
Didn’t know it go as far as 4,3. I’d clock it down until you get sensible readings. Even if you plan on getting a new CPU it might be good to have a spare one for BIOS updates.

jmrnilsson

Honorable
Mar 20, 2014
57
1
10,665
As far as I recall, the Sandy bridge (i7-2600) generation CPUs were not running as hot current generation. First I’d start with making sure the case has proper ventilation. https://youtu.be/e-cxkxtu1As contains a few helpful tips.

Then I’d go with downloading MSI Afterburner or another tool to compare temperature readings before continuing any more stress tests.
 
Feb 18, 2018
2
0
10
3 case fans, all spinning and airflow is good. (lower front intake, upper rear exhaust, top exhaust).
Cleaned the heatsink and the fan of the stock cooler.
Every program gets the same tempreadings.

What bugs me, is that CPU Temp starts at about 80°C and gets lower the hotter the coretemps go. Never had any problems till recently it started to throttle down after 100°C.

Okay, I overclocked it from 3,4Ghz to 4,3Ghz (not just recently, never had any problems!!).. Not a very good idea with the stockcooler, I know.
I clocked it down to default settings and it doesn't go over 80°C when stresstesting for a long time.

Still, coretemp at idle stays between 50-60°C, gaming 70-80°C, stresstesting 80°C, Fanspeed 100% (2600rpm)
CPU Temp gets the crazy readings too.

Should I just set the readings to ignore, so it doesn't throttle down if it would reach 100°C again? I mean, I'd see instability, errors etc.. when it gets too hot. I can then let it cool off and go with an aftermarket cooler. Don't want to right now, waiting for the right time to upgrade.
 

jmrnilsson

Honorable
Mar 20, 2014
57
1
10,665
Didn’t know it go as far as 4,3. I’d clock it down until you get sensible readings. Even if you plan on getting a new CPU it might be good to have a spare one for BIOS updates.
 
Solution