

In short you can't force your RAM to use 2666 mhz if it doesn't need it to run a program at maximum performance. If your laptop needs to use more frequency to achieve max performance it will. providing Windows is set to high performance, you are plugged into AC power and your battery is at 100% before gaming or using demanding programs, your laptop will only use what it needs, programs and games all have there own maximum performance and no amount of extra RAM will make them perform higher than they are designed to do.

Thank you for your suggestions, but sir how if I want to fully utilized my 2666mhz, how can i set my dram frequency even higher than 400mhz when it is not plugged in and higher than 933mhz when it is plugged in sir?Because i want to fully utilized my ram so that I can receive a better performance in terms of games and browsing Yeah, it's normal for the system to throttle things back and save power when you aren't using that many resources.
