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TAT vs. speedfan inconsistencies between cores - Page 2

post #11 of 23
Quote:
Originally Posted by zeus83 View Post
now, I don't profess to be an expert, and I'm going on on a limb here, but I think speedfan is bollocks!

I can't even see why I downloaded it. It told me my chip was cooler than my ambient - something I find very difficult to believe. However, TAT and Coretemp seem to be within 1 or 2 degress of each other, and give much more realistic readings.

moral of the story - trust TAT, not speedfan

Sam
Same here. TAT > SpeedFan.

The topic creator can not run CoreTemp. He said above that it crashes is computer.
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post #12 of 23
Quote:
Originally Posted by zeus83 View Post
now, I don't profess to be an expert, and I'm going on on a limb here, but I think speedfan is bollocks!

I can't even see why I downloaded it. It told me my chip was cooler than my ambient - something I find very difficult to believe. However, TAT and Coretemp seem to be within 1 or 2 degress of each other, and give much more realistic readings.

moral of the story - trust TAT, not speedfan

Sam

i have seen some do that too...speedfan sometimes won't even give an accurate environment temp..


TAT reads the T_junction (the core) however Speedfan and most other software reads the T_junction (the IHS for the most part)...usually there is a 15c difference between the two...

I don't think TAT logs as fast as speedfan tho...When i use both i notice speedfan changes temps more often and faster than TAT...but ultimately TAT still reads accurate, just slow...
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post #13 of 23
They are all within 1-2 cel (speedfan, tat, core temp)

http://www.setel.com/~elminster/c2d/stable.jpg
post #14 of 23
Quote:
Originally Posted by CravinR1 View Post
They are all within 1-2 cel (speedfan, tat, core temp)

http://www.setel.com/~elminster/c2d/stable.jpg
interesting....you have to be the only one i have seen get near same readings from TAT and speedfan....

I, and most others, get a 15c difference between the two...
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post #15 of 23
I've never had a problem with speedfan?

Didn't the 4300's have some trouble with some of the temp software (thought it was TAT)

Here is another where all 3 are within 1 cel
http://www.setel.com/~elminster/c2d/3200.jpg
post #16 of 23
Thread Starter 
Quote:
Originally Posted by MuNcHeR23 View Post
interesting....you have to be the only one i have seen get near same readings from TAT and speedfan....

I, and most others, get a 15c difference between the two...
Maybe he adjusted SF with some offsets? I have to do this or else it reads 15 °C too cool since quads aren't properly detected.
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post #17 of 23
Quote:
Originally Posted by graysky View Post
Maybe he adjusted SF with some offsets? I have to do this or else it reads 15 °C too cool since quads aren't properly detected.
Nope just installed it and that was it
post #18 of 23
Thread Starter 
Quote:
Originally Posted by MuNcHeR23 View Post
so how is it that TAT is incorrect then? From what you said speedfan is accurate at logging, and has a -15c from the true temp...

Did TAT not log as well as speedfan then? Or did it just not log as fast as speedfan..


TAT says Pent M b/c that what it was made for...Pentium M's..but that doesn't mean it won't run other cpu's.
That -15 is true on quad core chips because SF is subtracting the the DTS from 85 when it should do so from 100. (core temp = constant - DTS) where constant is 85 for most C2D and 100 for quads and maybe the X6800 but I'm not totally sure. That explains the 15 °C difference.

TAT gives *some* values are too high on my machine compared to RMClock and to the raw output from the DTS as measured using uncleweb's technique/CrystalCPUID detailed in this thread. Have a go at this and convince yourself.

Finally, I agree with your statement about Pent Ms: it doesn't mean it won't run w/ other CPUs, but for me at least, it seems to give these odd temp spikes for no reason where RMClock and Speedfan do not.
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post #19 of 23
still a little confused...

i guess what i am confused about is how to determine if you have an 80c ro 100c cpu.....and that thread only talks about quadcores...does the same apply to C2D's?
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post #20 of 23
What does BIOs says about your temps?
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