RAM configuration issue...

I've got one 1Gb stick of PC3200 RAM, and two 512Mb sticks of PC2700 RAM. 

Do I use all of it, while stepping down all of the RAM to PC2700 (with an Athlon 64 3700+), or just stick with the 1Gb stick at PC3200?

Please and thankya.


And, uh, if that's too wordy, I can try again. :<

no one really needs more than 1 gig. most people dont even need that much. if for some strange reason you do need 2 gigs, thats a decision you have to make.