the ram can be 1.65v, it is totally fine. intel mobo standards require that the cpu handle up to 1.9v, and the mobo up to 1.8v, the reason they reccommend 1.5v is to ensure absolute flawless performance. 99.999% of the time 1.65v ram is fine.
OK i have changed my build a little. What about now. What do you think about motherboard. Should i buy a better one. If so, any suggestions would be nice. And i have also 1 question about rams V and CPus V. Are they good and compatible ?