The thermal specification (also known as TCase) for your Intel® Core™ i7 processor I7- 2600 is 72.6°C:http://ark.intel.com/products/52213/Intel-Core-i7-2600-Processor-(8M-Cache-up-to-3_80-GHz)
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.
In order to lower down the processor’s temperature, please make sure your motherboards the latest BIOS version in order to load the latest micro code available for your processor which helps on the processor’s recognition.
You can check on the BIOS versions available for your board at: http://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Desktop+Boards&ProductLine=Intel%C2%AE+6+Series+Chipset+Boards&ProductProduct=Intel%C2%AE+Desktop+Board+DH67BL
Also, feel free to run the Intel® Processor Identification Utility to make sure the processor is being correctly recognized. This download can be found here: http://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=7838
Furthermore, you can test your processor’s functionality by running the Intel® Processor Diagnostic Tool. Download can be found here: http://www.intel.com/support/processors/sb/CS-031726.htm
Recommendations in order to avoid over heating issues are the following:
*Check the processor and system fan(s) to see if any have been disconnected or are blocked by a foreign object.
*Your system should be kept in a room that has adequate cooling; the room's ambient temperature should be below 90 °F (32 °C).
*Check that the processor's heat sink has been installed properly. Inadequate thermal grease on the heat sink can cause unusually high processor temperatures.
*Make sure your system's I/O (disk, floppy, CD-ROM, etc.) cables aren't restricting airflow in the system.
*Please ensure that both the power supply and chassis comply with the ATX 2.03 standard (also called "ATX12V").
If needing more troubleshooting assistance, feel free to contact your local support group during business hours:http://www.intel.com/p/en_US/support/contact/phone