The TCase for the Intel® Core i5-2500K is 72.6 degrees Celsius.
The TCase is a number established by Intel® as a point of reference in order to understand what could be expected as per normal processor temperature.
Anything from the Tcase and below will be the expected temperature of the processor in normal use, anything that doesn’t stress out the processor (watching movies, burning CDs, browsing the internet, creating documents, etc.) When the processor is stressed out meaning that you are running heavy processor applications that take control of the CPU or uses it at 100% the temperature will go beyond the Tcase. It can perfectly reach 80 to 85 degrees and the processor will still be OK. The cooling fan is in charge to keep that temperature there.
If the processor temperature reaches 100 degrees or more it will send a signal to the motherboard to shut down to prevent mayor damages and most likely it won’t be possible to turn the computer back in until it cools down.
The normal processor temperature will depend on the chassis type, the hardware involved and the location of the computer, and it usually is lower than the Tcase.
The Intel fan on these type of processors can reach around 2500 to 3000 RPMS, if the operating system determines that it is needed.
You can try installing the latest BIOS version for your motherboard, but as long as the system does not determine that there is an overheating issues, then the fan will not increase that much.
sounds right, but the fan assembly i have will not engage any fan speed above 2000rpm, even @ 100° or even with a 12v fan connector driven from the PSU. the fan never divates from the 100% threshold the motherboard commands. when i power it to a 12v source from PSU during the testing, it still never wanders anything faster. it will burst rpm upon connection, but that is all the high-speed happens is jusy on inital voltage contact.
my socket 775 when under a heavy load will ramp in speed over 3000rpm with temperatures decreasing and thats what i was looking for in this 1155 socket assembly. there is really no reason this 1155 assembly cannot handle a loaded situation better with/without motherboard support. possibility of a defect assembly?
If you believe that the fan/heatsink is defective, I would suggest contacting the local support center for them to replace the fan/heatsink.
You can find the local support center for your region at:
I personally believe that if the processor is not overheating with the fan running at 2000 RPMs, there should not be any issue.