Asrock stated on their website that:
"01 - 54 (except 0d), 5A- 60 Problem related to memory. Please re-install the CPU and memory then clear CMOS. If the problem still exists, please install only one memory module or try using other memory modules."
Did you try that solution?
I think there is no problem for your CPU, most of this problem that you faced now comes from bad RAM installation.