I have above computer system. I would love to install my Sonar as 64bit but the only concern that I have is the compatibility issue that many of you guys are facing. (regarding vsit and plug-ins and etc.) Do you guys think its worth to try 64bit? Which version of Sonar are you guys currently using?

Looking at the screendump, I would say that one of your main concerns would be your audio interface. I think that you would need to sort that out first.

Somehow, its not letting me edit my post... Sorry for the terrible looking spacing...:(

Oh, sorry. I forgot to mention it. I have NI Komplete Audio 6.

In that case, your system should be fine running X1 64bit. Any stability problems, is, to be honest, a bit hit and miss, and not necessarily a product of your system hardware. I notice you have a Gigabyte mobo, and they do get a slating from time to time. I think you just have to suck it and see...

You have so much memory that it would be a shame not to use 64 bit X1. 

I think it will be far better if you try it and see for yourself. Both versions will install side by side without issue. I can see you never using the 32 bit version though.