Originally Posted by GanjaSMK
Increase your CPU/NB voltage one more notch.
Thanks for the suggestion. However, after more research, I discovered that several of my settings were not quite 100% stable (but close). Only after I began F@H 24/7 did I notice the problem.
For anyone else who might be stuck, make sure you are truly stressing your system enough to expose instability. I previously thought a standard prime95 blend test for 3-4 hours was sufficient, but I was wrong. I now run a custom prime95 blend (3 threads), LinX (3 threads), and furmark all at the same time. I make sure that that prime95 and LinX combined utilize just about all my memory and I run the test for 8-12 hours minimum. This stresses the CPU, RAM, and IMC pretty thoroughly and it has identified even the slightest instability sooner and more reliably.
With my new testing strategy, I have been able to get to much better stability point and the infrequent crashes have ceased. I was even able to find a speedier configuration with lower RAM timings that works great for me.
Hopefully these details of my experience will help someone else in a similar situation. Cheers!