Ok, I'm on to my second tbird now, I accidentally fried the first one (poor cooling), so I'm kinda edgy about heat now, I have a thermal take golden orb socket A fan, but when I popped in the new processor it started running at like 45 C, then slowly made it up to 56 C (this is just me watching it in the BIOS, no big operations).

So what are the optimal and acceptable ranges of temperature for a socket A 800 Tbird?

and a different question, what's the deal with burning in? what applications work the best and how long do you do it?