I have another question for the more advanced on my system configuration; maybe someone could help me out?

Iíve been presently using 1 gig. of: DDR2 667 (PC2-5300) Ram on my system. I wanted to upgrade and add another gig. My PC can also use DDR 2 800 (PC2-6400), so Iím going to remove the stick of 667 and install 2 Gig. of 800. If I install the 667 with the 800, it doesnít make much sense, since your system will run at the slower speed. Now my question:

My PCIE Clock is set at 100MHz, and my CPU clock at 200MHz. Do I have to change these settings to correspond with the faster running Ram that Iím now going to use? My processor is a: AMD Athlon (tm) XP 64x2 Dual Core 2.2, my motherboard is a generic one made by Jetway, and my O.S. is XP.

Any help would be appreciated?

Thanks for your time,