When I first booted up into the bios my cpu temp was around 42c - 45c. Is that normal? i just installed the hyper 212 evo cooler over it with a fresh application of arctic silver 5 thermal paste. My room can get pretty hot since it's on the third floor of the house and shyt. I usually have the AC running while I'm using the comp though so my room isn't cooking while the pc is under heavy load.
It's normal. On that board when your in bios your at running at full voltage. The voltage should scale down when in Windows if you set vcore with adaptive mode. Also, be careful of running Prime on Haswell chips, shyt will go up to 100c easily due to the AVX2 instruction set. You can run it if you set the test to 1344K though which is what most people use.