Good point chilipalm, I believe the package thermal envelope is 72 - 80°C. I am going by a well researched guide on Tom's Hardware forums. This states that temps above 80°C are injurious to the processor due to migration etc.
However my own setups temps are higher than Gigabyte's.
This is a screen report from testing with the Intel HS/F with NT-H1 and fan set to full speed in the BIOS which is otherwise optimised defaults apart from SATA which is set to RAID due to an issue with Win7Ultimate not seeing the Crucial M550 1Tb SSD in ACPI mode. So DDR is SPD 1333 1.5v and not XMP. Even so it overheats after 10 mins of AIDAx64. I have sent this to Gigabyte along with precise replication instructions so they can match my BIOS settings exactly.