Well maybe you used fingers covered in peanut butter to install the CPU cooler.
Dude you gave 0 usefull information to help you. I can make some more guesses though?!?!
No BIOS settings, no programs you using to test, no voltages, no temperatures before overclocking.
Typically 93C means you 1) installed the heatsink wrong or, 2) didn't use thermal paste or used too much/too little.
Downclock back to normal if you haven't done so and post your temperatures. If you actually want usefull information please post some usefull information instead of hassle someone trying to help you.