Hey guys, i'm still a little worried about my CPU temps. I would like to ask if that TJmax temperature for i5 3570k is for the whole processor or only for the CPU cores. For example what kind of temperatures does the integrated GPU (HD 4000) be able to withstand without damage? Is it the same as the CPU cores? lower? or higher? The reason i am asking is this post http://communities.intel.com/message/155215#155215 i found on intel site where a guy from intel says that the maximum normal temperature is 72-75 C and i have passed that mark when i did some stress tests and the CPU cores where very hot (max 83C). Did i damage my CPU permanently?
HD4000 and TJmax
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jnkweaver
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dalethepcman
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83 c as a core temp is not "cpu damage" temps, but it is right there where damage can easily occur.
Regardless 83c is very hot, you need to decrease your overclocks, decrease your vcore, increase system ventilation or replace CPU cooler.
Regardless 83c is very hot, you need to decrease your overclocks, decrease your vcore, increase system ventilation or replace CPU cooler.
I am using stock fan and no overclock, no voltage changes, although i was using that XMP profile for my memory with which i seem to get higher CPU temperatures, but i thought it was normal for this CPU to support 1600Mhz memory, which i have now disabled...
I got this temperature 83 C (although it wasn't constant, it was fluctuating between 78-83) while i was rendering in Blender with Cycles (set to use all 4 cores). Yes i am using the HD 4000. The fan is set to automatic control by the motherboard (i think its that PWM feature).
Now you are scaring me even more, how can 83 C core temp be damaging while the TJ max is
105 C?
So this counts for all the CPU package (including the GPU) or only the CPU cores?
I got this temperature 83 C (although it wasn't constant, it was fluctuating between 78-83) while i was rendering in Blender with Cycles (set to use all 4 cores). Yes i am using the HD 4000. The fan is set to automatic control by the motherboard (i think its that PWM feature).
Now you are scaring me even more, how can 83 C core temp be damaging while the TJ max is
105 C?
So this counts for all the CPU package (including the GPU) or only the CPU cores?
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Yes, Tj Max 105C applies to the entire processor. Intel's Thermal Specifications are confusing at best, so allow me to simplify.
There are a total of 5 thermal sensors in a quad core processor; 4 Core sensors and 1 CPU sensor. Core temperatures (Tjunction) average 5C higher than CPU temperature (Tcase). Each has a specific set of definitions. Tcase is the temperature at which Intel lab-tests and certifies a processor. Different variants have different specs.
For the i5 3570K:
Standard Ambient 22C
Tcase (CPU Temperature) 67C
Tcase to Tjunction Offset + 5C
Tjunction (Core Temperature) 72C
Tj Max (Shutdown Temperature) 105C
Hope this helps,
Comp
There are a total of 5 thermal sensors in a quad core processor; 4 Core sensors and 1 CPU sensor. Core temperatures (Tjunction) average 5C higher than CPU temperature (Tcase). Each has a specific set of definitions. Tcase is the temperature at which Intel lab-tests and certifies a processor. Different variants have different specs.
For the i5 3570K:
Standard Ambient 22C
Tcase (CPU Temperature) 67C
Tcase to Tjunction Offset + 5C
Tjunction (Core Temperature) 72C
Tj Max (Shutdown Temperature) 105C
Hope this helps,
Comp
dalethepcman
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105 C is the temperature where the CPU will turn off to prevent damage, but thats not to say damage does not occur below that temperature.
Running that high of temps would cause your motherboard to also run very hot, and it may not be able to withstand the same temperatures.
Many solder types are only made to withstand 85C or 90C sustained temperatures, so running any part for a prolonged period of time could cause your solder to flow off the board or become soft. Repeated softening and solidifying of the solder will eventually cause it to crack. The area around your CPU, chipset, memory slots and the capacitors for your CPU power are the most likely targets of this type of failure.
Additionally If you were to run at say 100C for a prolonged period of time the CPU itself would degrade at a much faster rate and begin to error. 105 is not the max temp your CPU can run at, 105 is the max temp before it shuts itself down.
Think of coire temp like the red line on your car's transmission. Thats as high as it can go, but you don't want to drive with the needle just below redline, your car is not made to work in those conditions for more than a few seconds.
Running that high of temps would cause your motherboard to also run very hot, and it may not be able to withstand the same temperatures.
Many solder types are only made to withstand 85C or 90C sustained temperatures, so running any part for a prolonged period of time could cause your solder to flow off the board or become soft. Repeated softening and solidifying of the solder will eventually cause it to crack. The area around your CPU, chipset, memory slots and the capacitors for your CPU power are the most likely targets of this type of failure.
Additionally If you were to run at say 100C for a prolonged period of time the CPU itself would degrade at a much faster rate and begin to error. 105 is not the max temp your CPU can run at, 105 is the max temp before it shuts itself down.
Think of coire temp like the red line on your car's transmission. Thats as high as it can go, but you don't want to drive with the needle just below redline, your car is not made to work in those conditions for more than a few seconds.
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