I have an i7-3770 and am getting random game crashes, and when looking at the Windows event log I see I am getting parity errors on CPU cores 4 and 5. To combat the issue, I have temporarily set the Windows boot options to only use the first 3 out of the 8 cores on my processor. This seems to have fixed the issue (no more crashes in my games), but is there any way I could disable just cores 4 and 5 instead of 4 through 8?