Since you did not put in your cpu I guess your cpu is weak.
If you want help you need to give us full detail on what you computer is and what your friends computer is...
Yep, a good rule of thumb is to post a full system spec when you have an issue. CPU make/model, RAM make/model/speed/number of sticks, GPU make/model/chipset, motherboard make/model, PSU make/model/wattage, even your case make and model.
Since you did not put in your cpu I guess your cpu is weak.
If you want help you need to give us full detail on what you computer is and what your friends computer is...