i wouyld try uping the V to 2.3 or 2.4 first. it seems to me i had this problem. the 500K6's need more then specs say they do.. see is you can or need bios update. and any anti viri.. that load. try turning them off and boot normal. just rename you autoeec.bat file so you can then change it back if that wasn't it... i would try the V first though.
"Is it worth it to give your heart away, and live for a great period of joy, risking the chance to have your heart broken? If your heart does get broken, was it worth it to give it away? - Me"