Hi all! ( im new here! ) P.S. I'm hoping for smart/experianced techy people to approve it or otherwise Important - ALL parts are double tested so they work 100%! ( except for i5 3570K which seems to be the problem no matter mobo, ram or whatsoever ). I wonder if my i5 3570K is faulty? System is: Gigabyte H77-DS3 / Kingston RAM 4GB x 2 / i5 3570K / Chieftec PSU 650W It all worked fine for 5 month, afterwards Windows 7 64bit crashed to BSoD - after restart it crashed again after 15min... later it didn't boot past Windows 7 splash screen (froze and BSoD ). Same with installing any Windows ( even with no HDD/SSD attached, only DVD rom or USB key with Windows 7 install ) - can't get past Windows logo splash screen - basicly I can't even start the installation. Also, Safe Mode failed to load too. I tried different parts like ASUS P8Z77-V LK / different Kingston RAM... no changes. Then I tried different CPU ( Celeron G550, cheapo LGA 1155 CPU ) and it all works with no problems! SO, the question is - is my i5 3570K faulty or there is something specific about UEFI bios? Must consider that it worked just fine for 5 month. Thank you in advance!