I have a very big problem,and i wish that someone could be so kind to give me a help,about a month ago i bought a new pc,here are the specs. ADM phenom II black edition motherboard gigabyte MA790XT-UD4P 2 giga DDR3 Ram 650W antec neopower today i tried to overclock my cpu,so i went to BIOS and tried to do the overclock,after i saved and rebooted the pc nothing happened! i mean that even if the pc turns on it does not do anything anymore,it even does not start the bios option,and even the monitor is black,seems that is not connected with the pc. i am really worry about it,can someone help me about it? p.s i am sorry for my bad english and i really hope that some of you can be soo kind to give me a hand to try at least to fix this problem. my regards.

Reset the bios by removing the little cmos battery for 30 seconds. Put the battery back and then you should be able to get back into the bios.