dfi 790gx

just got my new mobo got it all up and running
but which slots do i put my ram is it the fist two yellow ones or the second two orange ones, or ddr2 slot 1 and ddr2 slot 2
slot 1 is yellow slot 2 is orange then slot 3 is yellow and slot 4 is orange,
instructions dont say anything
thanks

First 2 yellow ones to get dual channel, also they are closer to the processor slot which usually means they'll run faster.

thats what i thought thanks