dante451 :
my pc :
cpu : i5 3470
mobo: ga-z77-d3h
psu : cooler master gx series 450w
what the best ram i can buy for z77-d3h?
sorry for my bad english!
Well, the best RAM?
It depends on the amount of memory you are looking to upgrade and likewise, the amount of memory depends on the applications you run or/ intend to run. Anything between 8GB-16GB would be more than enough for any software's even memory intensive applications like video rendering. Above 16GB of memory is just a future proof and you wouldn't notice any difference in performance and most consider that as an "overkill".
So let me know the memory size or kit you are looking for like 16GB (2 x 8GB) or 8GB (2 x 4GB) etc. Always try to get the Highest frequency with the lowest latency possible for the corresponding frequency. (I hope that makes sense). You can try 1600MHz or 1866MHz. Anything above is not worth it.