Core Temp Sensor issues
I've been monitoring my system for the past few weeks after successfully geting a stable Overclock (my first!) on my Q9400 and P5Q (intel chipset, 45). I'm running two case fans and a vendetta 2 CPU cooler. Under full load, temperatures stay below 50, which is good for me. I used Prime95, FOLDING@home and SETI@home. Prime ran without errors for 36 hours and I have SETI going overnight, everynight, at 100% CPU with no problems.
I recently installed RealTemp. I was first using CPUID Hardware Monitor and noticed that the Core#3 was always at 37, unless under load and it went up to 48 (max). I am a bit suspicious about this as it never goes bellow 37 even though the other 3 cores are in the upper 20s when idle.
So I decided to do a sensor test using Real Temp. The problem is that it crashes Prime95 in the cooldown phase - every time.
Any ideas what this could be? Should I look into this core#3 sensor? Doesn't seem normal to stay at 37 while the other three fluctuate. Is there such a thing as a damaged sensor?
Your Q9400 probably has a stuck temperature sensor. Besides, why do you care about the idle temperatures if you run F@H and SETI.
If you're scared, just use OCCT stress test for 2 hours, and use CoreTemp to monitor the temperatures.
For reference, my E7200 doesn't drop below 30C during idle, whether it's in stock speeds or OCed speeds.
Can I "un-stuck" a temperature sensor? Is this normal? It was working in the first week...
I think the only way I've ever head of anyone un-sticking a Temp Sensor was to heat that chip up as hot as it could go. So perhaps run Prime95 or something for a few hours and see if it goes back to normal.
Try Intel Burn Test....
If it doesn't work don't sweat it...my last E8400 had "stuck sensors" always idles at 42C no matter what.
Its just a "stuck" sensor, an issue the plauges the 45nm chips. Don't worry about it, your chips not defective. The internal sensor was only designed to read proper temps the closer to the MAX TDP it is.
The internal sensor is technically a count down to max TDP, and not a temp sensor in the traditional sense anyways. As long as it can read the higher temperatures, anything else is gravy.
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