Memory Frequency

Maybe someone can help me understand this setting.

On my Epox 8RDA+ Rev. 2 mobo the listings under memory frequency are:
By SPD
50%
60%
70%
80%
83%
86%
100%
200%
AUTO

Am I correct in assuming that these percentages represent a percentage of FSB? If so, should I adjust the Memory frequency as close to 200MHZ as possible for my PC3200 RAM?

Or am I completely off the mark here and posting a stupid noob question?

Yes those are percentages of your FSB. Typically what you want is to run your memory in sync with your FSB (100%). So if you are running your fsb at 133 your memory speed would be 133x2 = 266. Experiment a little and see what works for you, but your best bet is to OC your fsb and run it in sync. Your 8rda+ should be able to run an fsb of 200 at least so that 200x2=400 will get good use out of your pc3200 memory.

Thanks for the info. I am currently stable at 216*11 Vcore @ 1.70
If I up the FSB to 217 Prime errors out even at 1.8 Vcore. I was thinking maybe it was a memory problem.

<edit> BTW Smokin O/C!