AvoK95 wroteBrands don't matter much in RAM. As the chips on the pcb can be different. What shops do is sell used damaged RAM and put them in the second DIMM. This way you'll use up your good RAM and a part of the bad RAM which isn't bad yet. But in your case you've used the bad part, thus giving you a blue screen.
I know they don't matter much that's why I bought it in the first place and didn't care, but after what happened I didn't want him to replace it with the same brand thus I requested kingston
Lebanese shops have various methods of deceiving , I am not buying things from a place other than pcandparts again