please will u send me the web address of guiness?
thanks

open the case and make sure all the cards are well seated and that every pcomponent is taking it appropriate place, if all is ok and the problem persist, then do what we call isolation, remove each component one after the other and reboot after removing each components by doing that u will discover the part that is cousing the problem. then you should then repl;ace or re[pair the part as the case may be.