Stephano, when you are installing drivers in a system, these are mostly related to the motherboard, not to the processor.
I recommend you to access MSI website and search for the most recently drivers available. I found this link; you may want to check it out
http://www.msi.com/product/mb/P6N-SLI-V2.html#/?div=BIOS
On downloadcenter.intel.com you will be able to find tools such as the Intel® Processor Diagnostics Tool and Intel® Processor Identification Utility. http://www.intel.com/support/processors/sb/CS-031726.htm