The setting for synch is the percentage. 100% is same as FSB (memory Frequency), so he is running at synch already. The CPU interface doesn't need to be changed (and cannot in that setting) It is like the filed of Memory Tmmings. It has Optimal, Aggressiva and some other. So, since he has in User Defined it cannot be changed
If I have pc3200 is it running at 400mhz regardless of what the fbs cpu is running at?
Since you have the Memory Frequency Set to 100% it will run at the same speed of the FSB. If you want to run it to 216 Mhz, then I think it is 116%, but there is no need to do that, since you will take it out of synch. Better leave the RAM at 200Mhz. It is underclocked, but then, it should be more stable, and you get better performance by having Synch, and higher FSB. In my Mobo I went as high as 205 Mhz Synch, but I had some problems (now I believe the problems were actually my video card )