RDRAM Single sided + Double sided?

Is it possible to use a single sided RDRAM stick with a double sided RDRAM stick on the same channel? because for me its not working - not booting up. One of my memory sticks screwed up, and my problem is that i can't find any places which sell double sided RDRAM in the UK.

thanks for your help

Wow, I wouldn't think that would make a difference. I figured as long as they're the same speeds it wouldn't matter. Where'd you get the double sided stick in the first place?

RDRAM Single&Double

I know that you can use them both together. That doesn't matter and shouldn't actually be the problem.
(I recently tested this on a Asus P4T-E)