942-Memory Training error - Dimm 3 CPU1

Hi Everybody , im having the same error , 942-Memory Training error - Dimm 3 CPU0 :

I replaced 4  other memorys ( Ram ) , Cleasr cmos and nothing happend . I tryied to replace CPU from socket 1 to scoket 0 and the error now is appiring in Dimm 3 CPU1 . 

I replaced the Cpu 1 with another CPU E5-2620 like the other cpu , error persist again . 

i dont know what to do more !!!