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Tcase? Is that how hot the box can get? (SB specs are up on ark)

post #1 of 8
Thread Starter 
i7-2600k

http://ark.intel.com/Product.aspx?id=52214&processor=i7-2600K&spec-codes=SR00C

72.6°C Tcase

i5-2500k

http://ark.intel.com/Product.aspx?id=52210&processor=i5-2500K&spec-codes=SR008

72.6°C Tcase
    
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post #2 of 8
Tcase would be the surface temperature of the chip...

I guess this does differ from core temperature.
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post #3 of 8
Thread Starter 
So that would be CPU temp - not core temp right?
    
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post #4 of 8
Yes, this is the max temp for the "case" of the cpu. The actual max core temp before throttling is tjmax, which intel doesn't specify but is usually 100c.
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post #5 of 8
Yes. I believe that is the CPU temp? not the core temps?
    
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post #6 of 8
As per Intel:

TCASE: The case temperature of the processor, measured at the geometric center of the topside of the IHS.
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post #7 of 8
Thread Starter 
According to arc the Tcase for the 980x (all they're listing at the main selection outside of second gen) is 67.9°C.


Coming from AMD the cpu temps were always higher than the core temps, I don't think it works that way for Intel... but does this mean since the Tcase is higher you can run your cores hotter? Or does it not mean anything?
    
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post #8 of 8
TCase is not core temp, it is lower than core temp. TCase for Lynnfield was 72.7*C but I find anythign 90 to be fine.

Note: I think CoreTemp pulls the Tj. Max straight from the CPU (the temp that the CPU throttles to avoid damage). It's pretty hard to fry a CPU these days if you aren't water cooling/LN2 and applying huge amounts of voltage, it will throttle long before it kicks the bucket, that said excess heat may shorten the lifespan.

What is TjMax?
Tjunction Max (TjMax) is the maximum temperature the manufacturer has rated their processor at. This value represents the maximum temperature the hottest part of the processor core should not exceed.

As per CoreTemp's website:
What is TjMax?

This value should not be confused with the TCaseMax rating, which indicates the maximum temperature the top-center of the processor's heatspreader should not exceed.
If your CPU is rated for 100C TjMax, and it was nearing the 100C value in the temperature fields, that is a sign of overheating. The temperature should not exceed this value, or it may cause instability, shorten the life of the CPU and cause massive performance issues.
A rule of thumb dictates that the temperature should be kept around 20C or lower below the TjMax value while under full load.

What is considered to be a safe temperature for my processor?
For processors with the "TjMax" value being shown in Core Temp it is usually considered best to keep the temperature 15-20C below that value when the processor is under full load.
For chips which don't provide a TjMax value, such as the AMD K8 family of chips, it's best to keep the temps under 70C full load

Edited by TickleMeElmo - 1/6/11 at 11:36pm
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