Ok, have you tested each memory module individually in each slot? you need to figure out if you have been unliky and got 2 memory sets with a faulty module. At the same time whilst doing this, if you get it where there is a specific slot that is causing the problem then yopu know it is the motherboard. Out of interest what slots do you have teh memory in?
If after this it is still not obvious that either memory of board is faulty you will need to test another CPU or your cpu in another board, as the CPU has the memory controller.
Also as a side note, teh deafult speeds of the RMA with the BIOS settings at default should be 1066.
hope this helps
Yes, tested al sticks in all slots, but will check again.
So, the default speed is 1066, to set the correct I need to manualy set it?
If it is XMP memory you should be able to set the profile and it will automatically put it at the speed selected for the profile, otherwise yes you will have to do it manually, note that tehoretically getting the memory to say 1333 or 16000 you are overclocking the CPU