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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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Pics<br><a href="http://assets.overclock.net.s3.amazonaws.com/1/1a/1a76e651_vbattach34002.jpeg"><img src="http://www.overclock.net/image/id/616453/width/525/height/525/flags/LL"></a><br><a href="http://assets.overclock.net.s3.amazonaws.com/9/92/92d91a89_vbattach34003.jpeg"><img src="http://www.overclock.net/image/id/616452/width/525/height/525/flags/LL"></a>
 

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TAT reports the actual core temp of the processor, the others use sensors on the motherboard<br />
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Using TAT as the temp monitor, keep the temps below 60C
 

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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.<br />
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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.<br />
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I'm not sure why your temp readings are so different...? Try using Speedfan and see what the difference is with that and TAT <img src="/images/smilies/wink.gif" border="0" alt="" title="Wink" class="inlineimg" /> .<br />
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Highly-Annoyed
 

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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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Originally Posted by <strong>Intel</strong>

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<div style="font-style:italic">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.<br />
I would recommend you to contact the motherboard manufacturer in order for them to provide you software developed for your motherboard.</div>

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</div>Right from the horses mouth in regards to TAT.
 

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here are both programs, still remarkable differences between them<br><a href="http://assets.overclock.net.s3.amazonaws.com/4/49/4996f8f4_vbattach34005.jpeg"><img alt="LL" src="http://cdn.overclock.net/4/49/525x525px-LL-4996f8f4_vbattach34005.jpeg" style="width:525px;height:295px;"></a>
 

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<div>Originally Posted by <strong>Dr_Ragz</strong></div>
<div style="font-style:italic;">BTW, room temp its around 25-28 C</div>
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Doc, you're experiencing the same conundrum as a lot of people around these forums, myself included. Which monitoring software should you rely on...<br><br>
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).<br><br>
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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Heres what my temps were looking like before I overclocked.<br><a href="http://assets.overclock.net.s3.amazonaws.com/5/59/598a6139_vbattach34006.jpeg"><img alt="LL" src="http://cdn.overclock.net/5/59/525x525px-LL-598a6139_vbattach34006.jpeg" style="width:525px;height:363px;"></a>
 

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Discussion Starter #12
seems, familiar that kind of readings, any suggestions for the vcore for when i start overclocking? so i can keep it running cool
 

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This question has been repeatedly asked in regards to Intel Core 2 Duo E6x00 series processors.<br />
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Applications like Speedfan and Everest Home Edition will read temperatures from the motherboard die socket sensor. Depending on thermal conditions this temperature will be up to 15-20C lower than that of the actual processor "core" die.<br />
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The Intel Thermal Analysis Tool reads temperatures directly from the Core 0 and Core 1 die's.<br />
These temperature's will be higher than that of the motherboard socket sensors. However they will be in the same thermal range as the Integrated Heat Spreader (IHS) of the processor.<br />
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The accuracy of TAT is far greater than that of SpeedFan as the thermal detection sensory algorithm is far more sophisticated and in depth, and is less affected by analogue > digital conversion errors.<br />
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The Intel Thermal Analysis Tool itself is designed for use with Intel motherboards. However it will work perfectly with almost all boards using i975 and i965 chipsets for Core 2 Duo processors.<br />
If you own a motherboard which contains an i975 or i965 chipset TAT will work perfectly and will display very accurate Thermal readings of your processor(s).<br />
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Intel specify maximum Thermal Temperature's for the IHS. <br />
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However under logic, given that large amounts of thermal energy in the form of heat are displaced from the transistors, it is sensible to assume that the temperature of the core and the IHS are infact very similar. <br />
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Therefore you should assume TAT to theoretically also display IHS temperature levels (up to 10% error Core > ISH).<br />
Therefore use TAT to check if your processor(s) thermal levels are within the rated 60.1C.
 

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My testing has found TAT to be quite reliable and accurate even on non-Intel boards.<br><br>
The only way to 100% be sure which thermal reading is "right" is to do what I did and attach a thermal probe between the IHS and heatsink and compare.<br><br>
It's possible you have a defective motherboard sensor and a improperly seated water block (would explain the high temps on water)...or any other number of things unfortunately.<br><br>
Especially as you said Everest and TAT both show the same core readings if I am not mistaken.
 
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