Hello, I just replaced my 2GB OCZ ddr2 pc6400 800Mhz dual because it was faulty and they gave me the exact same type , but Muskin. After booting the PC I checked CPU-Z and I saw that my memory runs at 266Mhz and that I could make it run at 400Mhz if I change some settings from BIOS. So I changed the frequency , the latency ,tRCD, tRP , tRAS , tRC το 5,5,5,15,23 and the voltage to 1.8V. After rebooting cpu-z says that now my RAM runs at 222.2Mhz. Can anyone help me? How can it ran lower that before even if I did change the timings? The flexibility option should be enabled or disabled ( default) I attach the 3 images.