how to configure my ram ?

[wawathings]

Hey all i just bought 16gb of ram for my 2008 Mac Pro.

I have the original 2 x 1gb sticks +
4 x 4gb sticks now .

How do i install the memory to get the best result

 

[flatfoot]

Principles:
http://manuals.info.apple.com/en_US/MacPro_MemoryDIMM_DIY.pdf

4GB modules into slot 1&2 of riser A and B respectively, 1GB modules into slot 3&4 of riser A.