Memory overclock problem?

[Mateus Montemor]

Hi guys, I have 16 GB of these RAM:https://www.newegg.com/Product/Product.aspx?Item=N82E16820231429 and i was adventuring overclocking it in the last couple of months and i tried two ways:

-1866 MHz at 10-10-10-27 1.6V

-2133 MHz at 10-11-10-27 1.66V

I was having no problems until i bought the witcher3 on steam winter sale and started playing. It is delivering the expected of my system (Avg 90 fps on highest presets with avg 60% usage of CPU and 99% of GPU), the thing is one time or another the game just closes, no error messages or nothing and today, in one specific battle inside a cave with various animations, my GPU usage dropped to 50%, dropping my fps to around 50, im not worried because it really looked like a specific game part (since it never happened before) bad optimized, but could it be related to my OC on the ram draining more power due to elevating the standard 1.5V to 1.66V? Also, i did a AIDA64 stability test right after OCing in december and one yesterday pushing CPU and RAM and no crashes and/or errors in general with good temps. So, are these problems of the game or is it better to remove/change the OC on the memory? I will leave all the pics related below.

 

PS: Is my power supply fine for my config with the OC? I read very good and very bad things about this model, but it passed on all real tests (with proper equipment) i see on the internet