Serious problem with my Dual Channel RAMs

[kosmiq]

Well Sisoft Sandra and the like reports the speed the memory are currently running at.

Like this:
Setting the memory to run at 166MHz Sandra will show (to your surprise) 333MHz DDR. OMG how did that happen? No idea.
Setting the memory to run at 180MHz will result in? OMG 360MHz DDR as reported by Sandra, POST and even nVidia System Utility (that can be used for windows overclocking btw)
Setting the memory to run at 200MHZ will give the correct result... Guess what? 400MHz DDR how can that be? No idea must be magic somehow... All apps reports the same.
Setting the memory to run att 225MHz will give 450MHz output no matter what the checking utility is...

So there is either magic going or all apps will show wrong.
Please give me the name of a good debugger that will show me the info you say me to look at and I will gladly test it and give screenshots.

Sorry for being a little negative there, no pun intented just felt like writing like that...