Temps.

Okay got some temp questions.
I run a i5-2320 with an Coolermaster Hyper 101 heatsink/fan. trying to figure out what are reasonable temps. idle they sit at around 38-40c. my case is a DiabloTek EVO using only the 4 120mm fans included. 1x front(intake) 2x top(outtake) 1x rear(outtake) the Fan for the hyper 101 sits at 100%(its not the PWM version) when playing new games. Kingdoms of Amalur/BF3/MW3/Skyrim temps hover around 50-51c. what are the max temps? are these okay? really new to Sandy bridge stuff so still kinda trying to get a handle on it all. running prime95(all stock, no OC) temps get up to 66c and hover there at 100% load. graphics card idles at 30c and maxes at around 58c(running a MSI N550gtx-ti Cyclone OC) not worried about those temps at all there good.
temps checked via SpeedFan and CoreTemp.
Thanks.

Around 40 degrees idle could be lower, but it's completely tolerable. As far as your load temps (50-51), those are completely fine, you don't need to worry about them. And if you're running prime95 at around 66 degrees I would say that's pretty good as well, considering your CPU is at its limit.