Dual channel memory explanation needed

[detoam]

Hi there!
I am way behind on my terminology and so on. I have two sticks of 512MB Kingston dual channel on a ASUS M2A-VM. My question is what dual channel means? How can I benefit from this. I also have read the manual for mobo, but I still can't figure out which slots I should put the memory in for best performance. Apparently they see a difference and made two slots specially for it, but it says I need three sticks to benefit.
I am so confused.

Thank you.

 

[Matthew DeCarlo]

http://en.wikipedia.org/wiki/Dual-channel_architecture

 

[CCT]

Section 1.7.2 of your manual is VERY clear on ram placement for dual channel operation.

What part of that is hard to understand?