The i5 3570k requires the 2.10 BIOS version. That BIOS was released in May 2012. Now, if you buy a board manufactured after that date, the BIOS will most probably support the CPU.
If not, you would need a supported CPU for entering BIOS and flashing it.
More info here: http://www.asrock.com/mb/Intel/Fatal1ty%20P67%20Performance/
There you can find the BIOS versions for downloading.