utroz :
For memory there are several options that you could do. You could use a program like Memset to tweak the memory timings in windows. Another thing you can do is use Spdtool and write you own spd data to your memory which will allow you to run the memory faster and at tighter timings. Do this at your own risk.
thanks for the answer, about the memtest it does not work for me in win 7 do I have to use a usb boot to make it work?, I will try to use spdtool if I have results I publish them