Tnx for the reply, I have indeed set the timings and voltage manually. Also put 2.2v on it without luck. Also tried different strap settings to see if it would run on the specs the guy before me had them on (1000Mhz 5-5-5-15/ 1066 5-5-5-18), but no luck. Now I put back in my old OCZ and they run on Command Rate 1N and higher speeds without problems. Really disapointed by this so if there is anything else I can try I hope someone can tell me.