whats so funny about that?    


Coretemp is reading the correct diode temp of the core. The BIOS is reading the case temp of the core which will always be 10-15c less than the true temp of the core of the processor


Confused?

There are 2 temps sensors in modern Intel processors. The one you need to be concerned about when clocking is the diode temp which can also be read wrong if you have a very new to the market processor and a older version of software to read it which is one of the dangers of playing around.

Coretemp will also display the value known as tJunction MAX. This value is where your processor goes bye-bye. There is a engineered safety point in Intel processors called tJunction (not max) where if the processor enters that temp range it will start reducing perf and if heat continues to build start shutting down.

Each processor has a spec for tJunction MAX (AKA tJMAX) and tJunction. You must find and verify those values and when testing for temps NEVER exceed tJunction during those load tests.

tJunction typically sits 25c lower than tJMAX but there can be exceptions. 25 is a good 'assumption' value if you cant find direct information on the value for a processor and be careful what you read on the internet... forums are full of idiots who think they know what they are talking about and can post incorrect information.

An example of how to evaluate a proc using a Q6600. Assuming the Q6600 is a G0 stepping processor (check CPUz for stepping code) the tJMax, if I remember correctly, in Coretemp will be 100c which means you do not want to exceed 75-78c when testing under a full load.

You can let that go a tad more to a max of 79 but if it hits 80 its too hot. It wont damage the processor but that means the processor has hit tJunction and will reduce perf to reduce heat.. therefore your cooling solution is not efficient enough or the Vcore voltage is too high, or both.

When testing use the software OCCT 1 hour test. It will ensure the memory and CPU are load tested and you can set the TEMP where the test will automatically stop in the program settings.

and something i dont get also is that i live in a tropical climate and its almost always 30 degrees in my room, that and an 80 degree video card makes it always 50 degrees just in the case. so what you are saying is that when i look at bios i see the case temp at 50 degrees and the cpu temp at 40 degrees i am seeing the case temp of the core which is 40 degrees. so why is the case temp of the core lower than the case temp itself?

T1MT1M wrote on Nov 29^th, 2008 at 9:44am:



No thats not what I am saying

The CPU TEMP in the BIOS may be reading the wrong sensor. It may not be reading the diode temp and instead the CPU CORE CASE not TOWER case temp. I dont know the board or the BIOS or the processor

I would trust coretemp over any other reading on the system and as VB mentioned, under the CPU settings in the BIOS make sure PECI is enabled if it is listed. It may not be listed becauase not all procs support it

I get what you mean now because



^^^ from everest.

so it is 55 degrees at idle  

dam

o well ty for help

its probably because i replaced the thermal paste recently because it was running hot before, it cooled it down a bit but obviously not to avg from which ive been told is 48 at idle. Im certain i did it right because i followed the arctic silver tutorial.

http://www.arcticsilver.com/pdf/appinstruct/as5/ins_as5_intel_dual_wcap.pdf

which is there.

ill just get it done when i go into work monday by a person that can play some operation on my pc .

In your case I do think you are running hot

http://processorfinder.intel.com/details.aspx?sSpec=SL9T9


See the thermal spec?

61.4°C



That indicates to me you probably have a tJunction Max of 85-90c and you NEED TO CHECK THAT with CoreTemp... see what coretemp says you tJunction is

if its 85-90c you NEVER want to exceed 65-68c under a load. Always stay under 20-25c of tJuntion MAX

my rule of thumb to be safe is Diode temp no more than 5-7c higher than the Intel Thermal Spec listed for the process


so in your case I think you do have something wrong... possibly a combination of case cooling and processor HSF design/mounting or you are simply exceeding the voltages you should be running

Go back up and read... you should not be over 68c on that proc full load

your limit is 68... 70 is absolute top end

and PRIME wont full load that system

Use OCCT. Prime is old news now for load testing



And yes, if you do not have a a good aftermarket heatsink you are not going to be clocking safely

The stock heatsinks are very limited for clocking

T1MT1M wrote on Nov 29^th, 2008 at 11:31am:



I really question that one when the intel spec calls for 61.4

I need to shoot a question to my Intel contact to get the skinny on that one


if it is 100 then 75-78c is the max but that really sees strange for a E64 dual core proc. If the silicone is from the same batch as the Q67 then I can see that as a possibility. Usually Intel posts the Thermal Spec which runs about 5-8c lower than tJunction so it does seem strange they would apply a 61.4c max on that proc

100c tJMax is typically Intel spec'd @ 71-73c

T1MT1M wrote on Nov 29^th, 2008 at 11:00am:


lol Maxtor. 1337.

ok cool. nothing's gunna die and ill just get a vendetta 2 some time this week. thanks for the help. Turns out they are funny temps .

Quote:



Dont worry about it

All you need to know is tJMax and not to exceed (minus) 20-25c of that


most of the data in that PDF file is for BIOS engineers and software programmers to calibrate their products





T1MT1M

yes, you need a heatsink to be safe