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Huge differences between IHS and core temps

post #1 of 14
Thread Starter 
I´ve just plugged my new core 2 duo e6400, running stock fsb and vcore, watercooled, im a little confused, which is the right temp? everest says that the IHS its about 24 C, and the cores are 41 and 39 idle each, TAT reports the same temp for the cores. What is the reason for that huge difference? isnt it running a little hot for idle on watercooling? which temp should i mind when i start overclocking this cpu?
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post #2 of 14
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post #3 of 14
TAT reports the actual core temp of the processor, the others use sensors on the motherboard

Using TAT as the temp monitor, keep the temps below 60C
    
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post #4 of 14
The max operating temp for C2D's is measured, by Intel, at the IHS, so that's the temp you have to concern your self with. However, motherboard sensors and sensor reading apps can sometimes be a little off, so in your case (where there seems to be a relatively big discrepancy) I'd say go with the TAT readings to be safe.

My E6600 reads the same temp (+/- 1°C) both with Speedfan and with TAT when both cores are either idle or at full load. It differs a little more (+/- 2° or so) if one core is fully loaded and the other is idle between the TAT and Speedfan sensor reads, but no more than 3°C at a complete max difference.

I'm not sure why your temp readings are so different...? Try using Speedfan and see what the difference is with that and TAT .

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post #5 of 14
Thread Starter 
Ok, let me try speedfan, and i´ll post the result, but i´m still confussed about that idle temps at the cores, i´m watercooling, didnt it supossed to be a lot cooler than air apps?
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post #6 of 14
Well that depends all on your ambient temps, maybe the room is a little warm?
    
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post #7 of 14
Quote:
Originally Posted by Intel
Since you have a 3rd party motherboard the Intel(R) Thermal Analysis Tool might not work properly, this is because, basically this software was developed to run with Intel(R) desktop boards.
I would recommend you to contact the motherboard manufacturer in order for them to provide you software developed for your motherboard.
Right from the horses mouth in regards to TAT.
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post #8 of 14
Thread Starter 
here are both programs, still remarkable differences between them
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post #9 of 14
Thread Starter 
BTW, room temp its around 25-28 C
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post #10 of 14
Quote:
Originally Posted by Dr_Ragz
BTW, room temp its around 25-28 C
Doc, you're experiencing the same conundrum as a lot of people around these forums, myself included. Which monitoring software should you rely on...

In my case, SpeedFan, PC Probe, Everest, BIOS, and AI Booster are all in agreement with temps (theyre all the same for the most part).

Yet TAT is roughly 15 degrees higher or so most of the time...I'm following my motherboard's specific software for thermal monitoring and that's about it. TAT was designed for Intel motherboards so no one really knows how accurate it is unless theyre using an intel mobo.
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