What should your RAM and CPU be for the AX89X?  I have a HD attached to mine and I'm seeing 53% RAM usage and ~7% CPU. I assume CPU is only really affected by bandwidth heavy tasks? 

If I'm reading this thread correctly, so far Asus has not pushed out a new firmware - I'm on the beta but I don't want to stay on it. It's pretty wild that Asus hasn't posted an update yet. I have the RT-AX89X btw.