Try reseating your RAM. Long continuous beeps indicates a RAM problem, probably because a module isn't fully seated or one or both are bad (defective). To rule out the latter case, remove all but one RAM module. If the beeps go away, add in the other. If the beeps are still absent, then the modules weren't seated properly. If the beeps are present with only 1, try the other module and/or try the module in another slot. Isolating the cause involves the use of basic experimental science.