I've recently installed my new AMD 64 3500+ on my mobo. There's a strange thing, which got me completely confused. The ddr clock is set to 200. My ddr memories are PC3200. Shouldnt the ddr clock be 400?
correct, there was no prefix before DDR as there was only 1 rate, everything ran at the set speed, as 1 read = 1hz but DDR utilised both sides of the square wave, so 1 read is done on the rising edge of the wave, and one is done as its falling, so you get 2 reads to 1hz, thats how they managed to get Double Data Rate (DDR)
but you will see even DDR is shown as say PC3200 DDR SD-Ram