I have Gigabyte GA-EP45-UD3R 1.1 with bios F9 (and Windows 7 RC 64) (I use default settings) and sometimes my pc reboot without reason. When my pc start again, it give out a short and continuos beep (beep-beep-beep-beep...) and it turn off. My pc reboot again and give out these curse beeps (the loops repeat continuously except I break the current for 15 minutes..) Why? I'm becoming crazy..