Your 1090T runs at 3.2/3.6 freq, at 1.0-1.475 volts, max temp is 62c.
I would question the temp sensor at this point. It may be off. There's great reviews of the hyper 212 and if you have it mounted and running correctly then there's a problem elsewhere.
-make sure the cooler is touching the cpu, the cooler mount on sockets 939,am2-am3 has a plastic mount that likes to catch on the edge of the cooler leaving the cooler hung up and not fully touching the cpu.
after you make sure the cooler has contact, either gently twist the cooler and see if it has a slipping on grease feeling or take the cooler off and see if the paste has contacted the cpu.
-before taking the cooler off, run the computer so the paste is warm and thinner, then shut the computer off and remove the cooler with the cpu warm, this way the cooler wont be stuck to the cpu.
after you made sure this is not the trouble, run the computer and feel the cooler after its been running for a while, it should feel warm but not hot, how hot does it feel? like scalding coffee?80C warmer coffee? 50C luke warm coffee 30C.
Often the boards sensors or the chips are wrong.
If the cpu's intenal temp sensor is flawed then cool n quiet wont work correctly and i would still rma it.