5 second beep/alarm

Question

im building a gigabyte GA-8GeM667K i have 3 gig cpu and a 2.6gig cpu a 256mg ddr400 legend ram second hand and a LEMEL1 gig ddr400 (hynix chips) brand new may be fulty because i keep getting a 5 second long beep iv turned it on without ram in it and it gave me fast rapid beeps meaning no ram so im thinking the ram is dead or not compatible if you have any idea's it would be a great help my email address is [e-mail]

thank you