You have a set of triple channel RAM (3 x 2GB), and a set of dual channel RAM (2 x 8GB). Both sets are clocked at 1600 MHz, and the motherboard and processor supports both triple and double channel (i7-950, 3.06 GHz).
The 3x6GB set is already installed. Would it be better to remove the first set and just have the 2x8GB, or would it be a good idea to keep all the ram sticks in, and get more RAM (which could be used for RAM disc etc)? Would installing the sticks in a certain way lose both the double and triple channel feature?
Without using a RAM disk, the system will in probably never user more than 16 GB of RAM.