My computer just randomly shut off
this is weird

what the forget?
jesus forget 84 Celsius you are glad your computer did not catch on fire
I'm looking to get a new CPU cooler, what can I get for an am3+ board for $30? I had the 212 evo and it loving sucked
I think you might have gotten a faulty one or something
I have the Hyper 212 Evo with dual fans on it and an I5-3570k overclocked to 4.2ghz and my cpu never gets over 46 Celsius , its a good after-market cooler,
my cpu idles at around 35-36 Celsius, and gets no hotter than 45-46 Celsius when gaming
motherboard idles at around 29-31 Celsius, and gets no hotter than 35-36 Celsius when gaming
it also depends on the amount and quality of the fans in your case along with if you have them properly set up so that they pull or push air in the right direction
also having nice thermal paste will certainly help and i'll gladly recommend you some if you wish