I have a similar problem on my i7-930.
Try to check the bios voltage settings, if not test ur processor in another mother board or another processor in ur MB.
I home that this info can help you, for me still waitng a solution.
This guys here probaly on vacations.
Asus Rampage III extreame
CPU i7-930 2.8GHz (stock no OC)
Corsair 1000W Silent Pro Gold
3X4 Corsair memory vengeage 2000MHz
Standard intel cooler
Tthermal artic grease MX4
Room temp about 20° C
Processor 45° C
Even outside the case on my desk the temperature starts at 45 ° C without load.
The cause of the problem in my case was an electrical problem on the motherboard, since replaced the motherboard and the cooler for a H70 these are the results.
Room Temp at 19º~21ºC.
Thank you all for your help.
In my case it was enough to reduce QPI Voltage.
I suggest you see in this direction, because I felt no loss of performance, you need to see if your BIOS has this option.
Another option to check: see if the board supports the processor with the current bios, if not Upgrade the BIOS.