kassingjed

I just bought N54L and I am going to give DSM4.3 a try. I have been reading a lot but I could not find an answer to this question: How much memory is needed to run DSM4.3? I have read that to run FreeNAS you need 8G or 16G in order to get good performance (caching ZFS data). Does more memory help DSM performance-wise? is the 2G RAM good enough for streaming one 1080P video? Thanks, Jed