Have you run MemTest 86+ or otherwise confirmed your RAM isn't at fault here? Of course, the IN9-32X MAX was a piece of junk from the get-go; its digital PWM was terribly unstable, ran incredibly hot, etc. I think they may have released a second rev IN9 with an updated PWM, but I'm not sure.

As for the 780i, I haven't heard of too many complaints. Assuming you're running the latest BIOS, I'd narrow my testing to the RAM and the PSU.