I might go the modded BIOS route if I have to wait extra long for Pascal but generally I take a safe and mild stance on overclocking. So far switching to the water cooler has been a nice experiment. It's just a reference EVGA card, very small stock overclock, no toggles for fancy modes like on a Classified or Kingpin version. I'm using Precision X now, might try going to +200-250Mhz this weekend just for kicks, maybe even bump the memory too now that I know the artifacting was from the +37mv...
Really curious about the 3DMark thing now, maybe I'll try running it with my X34 disabled and using my secondary monitor as my primary display... Will report back.
Can you share the screenshot of your bios settings (All of it) ? May be that might help in pointing out the odd tweak out.
EDIT: Just observed one more thing- your signature shows you have 16GB Ram but 3DMark shows your system has 8GB RAM
- are you intentionally running single channel setup? I haven't seen dual channel setup make this much difference in 3dMark/Games but maybe you can retry running the bench with dual memory channel setup.