I have my 4600 running @ 2.82GHz w/ 1.375 vcore and I get roughly those temps; of course, I just installed it last week, so my Arctic Silver 5 hasn't had the chance to fully cure yet. I'm not sure what the TCaseMax stands for, but it's 57 on mine (even though load temps sometimes hit 58-59). I don't really think I hit those upper temps unless I was priming both cores for at least an hour.