i have a gigabyte K8N-SLi with a 7800GT, and gold series OCZ 1gb 3200. i also have the latest version of my bios. well heres the problem: when i boot up(doesn't happen when i restart), my computer lets out a really long beep during the middle of booting up and my CPU fan miraculously stops spinning, but after i leave it to beep for maybe 10 seconds it starts spinning again and goes into windows etc....what oculd possibily cause this problem?? thanks in advance!l