ddr2 533 w/ ddr2 800

[HelpMePlease!]

Am i amble to use ddr2 533 while using some ddr2 800 as well, or would that make the ddr2 800 slow down to 533?

Right now I have 2 1 gig sticks of 800 connected, would it be stupid to add another stick of 533?

Thank yall for your time

 

[Geoff]

Yes, it will slow down to run at DDR2-533.

Since you already have 800, I would only put in 800, otherwise its like your wasting money.