So... Which CPU temperature is the correct one?

[windmill]

Hiya there.

Bought a new comp some two weeks ago, and thanks to some awesome help here, it's working perfectly!

Yesterday I decided I'd try and do some OCing (first time ever, hopefully I won't screw everything up ), and went on to download some CPU diagnostic thingies. Stumbled upon Intel Thermal Analysis Tool. Much to my suprise, it was showing my cpu temps to be around 50°C idle, waaay too much in my opinion.

Downloaded SpeedFan, but that told me the CPU temp was at 35°C.

"Weird", I thought, and went for the BIOS, where the temperature was around 30°C...


Here's a little pic from today:



BIOS showing 29-31°C.


So, what should I trust? SpeedFan, BIOS, or Intel TAT?
  Hopefully not the Intel thingy... can't be bothered with a remount of the heatsink. ^.^
  And what is that AUX in SpeedFan?


Thanks!
  / Dan

[Calum]

It's normal for different programs to report different temperatures.
The temp in the BIOS is not under load, so that is the correct completely idle temperature.
As for the others, it's anyone's guess.
I find Everest to be pretty accurate.
The AUX in speedfan is nothing to worry about, it often has strange temperatures at impossibly high or low readings.
In your screenshot, the Speedfan result seems very low to me.  I think the Intel one, at 39, seems about right - you have a Pentium M, correct?  That's what's shown in the screenshot anyway.  They run cool, so a reading of 39 seems right to me.

[GX1_Man]

What are the specifics on the machine that you are trying to destroy overclock?

[Calum]

What are the specifics on the machine that you are trying to destroy overclock?

LOL
Overclocking is not always dangerous, you just need to take a bit of care.
Shame on you, after posting the article on the Pentium D 805 at 4.1GHz!
Anyway, I presume he's talking about this machine here.
Having found that, it seems strange that his Core 2 Duo is reported as a Pentium M - excusable with some programs, for example CPU-Z often reports strange findings, but not with Intel's own software

[Neil]

Do you play any games? If not, you are wasting your time!

[windmill]

Aye, Calum got it right, except I decided to get better memory sticks.

So, what I'm gonna OC would be
  E6400
  Asus P5W DH Deluxe
  2x1GB Corsair XMS2 5400 DDR2
  Geforce 7950 GT 256 MB etc.


There is an option in BIOS with an Overclock thingy, where I can let it OC from 5% to 30%... Is that a good one, or should I do everything manually instead?

Thanks!


Edit: And yes, 'course I play games. Who doesn't?