Because I myself have long had nothing with matter at the hat and also frankly was a little too lazy to look around a bit I chose the easy way out and sent a request to the computer manufacturer.
Since I was but explained only by a very helpful staff that my computer no longer supported as a 4Gb.
Service also "technicians" and employees of various "computer" FACH "business" told me that my XPS that anyway can not and besides no DDR2 RAM with more than 4GB so there 2x2GB.
Well .. actually, since no one was really helpful to me, it really was finally hanging himself on me and I had to scour the Internet ... And I met with Amazon on this product ..
Initially dreamed of a Markenram ála Kingston, Corsair or Samsung, I wanted it but then once try with a Noname product. Of course, since the 30-day return policy on the part of Amazon I came just because I was still unsure of just soooo many "competent" individuals and various reviews on Amazon.
So ordered .. Article. The bars were, as it seemed, sent from England and came within four business days after the order healing for me to .. Top shipping ..
Of course the article was the same built and tested with various programs. Everything OK!
The system is now since about 3 weeks in operation and so far no system crash caused by memory ..
I can therefore only recommend this product so far .. 5/5
Have a nice day and thanks for reading :)