My only guess would be voltage settings too high, or heatsink isn't seated completely. I had a new installed cpu raise to 120*C and it was because the heatsink wasn't secure tight.
Are you reading these temperatures straight from BIOS health screen?
Xion XON-180 Case
OCZ ModXStream 600w 50A on +12V
ASUS M5A99FX Pro R2.0 AM3+ mobo
AMD FX-4170 Zambezi 4.2GHz [stock heatsink]
2 x 4Gb DDR3 1866 G.Skill Sniper RAM
Corsair GT 60Gb SATA3 SSD
Evga GTX 465 GPU
Windows 7 Premium