I'll send you a preview of the next beta, there are some tweaks you could try.
My Force 3 will have to run another 4-6 hours before I'm willing to make any changes.

Also I'm going to reinstall the ASRock Z68 tonight, just to make sure that I'm running a non tweaked installation.
(will be upgrading the old Vertex 1 as well, it's on fw 1.5 and 1.6/1.7 looks to have fixed a lot of issues + better Endurance)