You must have a bum chip. I had one that wouldn't pass stress at stock clocks and stock volts. It would only clock to 3.8ghz with air, temps hitting 85c with 1.375v. Returned that chip and got a new one. The new chip was hitting 4.2ghz on 1.350v at 82c. This is also on the R3E gene board.
Yes the 4.4ghz at 1.35v is with Ht off. Most games don't need more that 4 cores. So for the games that use 2 or less, A i7 at 4.4 vs 4.2 will give better fps with Ht off.
Try this if you want to leave Ht on. Cpu/1.3875 Qpi/1.375 Pll/1.9 ich/1.2 ioh/1.2 LLC/enabled cpuSS/disable pci-eSS/disable
I use these settings on all the 950's i've clocked to 4.2-4.4 on AIR with a meglehams. I wanted to try a H70, but they wanted to stay on air. Doesn't sound right to me that your having this much trouble with a R3E and a 950. The settings that I just listed work. If not, sorry to say, you have a ****ty chip!!