Pretty limited without the dumps, all i can suggest is to stop OCing if you are, run memtest86(min 5 passes pref overnight), download and run HDD diags from manufactorers WWW, and from an elevated cmd prompt(right click run as admin) type> sfc /scannow , to check integrity of system files, update all possible drivers/bios/chipset etc
Need the dumps to be of any more assistance, can you not drag them out of minidump folder?