Firstly Awesome build man. I just got the Obsidian a few days ago, when the rest of my stuff comes in I'm going to start another worklog here also . What direction are your fans blowing in? I had a top mounted rad in my old tj07 build with the fans blowing out which didn't work too well. When i reversed the fans to be blowing in I got about a 10-15 degree difference. Also you could try lowering the CPU voltage in bios to find how low you can go while keeping it stable. This will help with CPU temp. Hope this helps