Two identical ram sticks necessary?

[ku]

Are two identical sticks (including brand and stuff) to run dual channel?

 

[mechBgon]

For nForce2? Nope, pick any two. They can be different brands, capacities and/or models. If you're talking Intel Pentium4 chipsets, then they should be the same capacity and the same logical organization so the chipset can use the same addressing scheme on both of them.