Memory Frequency

I just have setup my new motherboard (ASUS A7N8X Deluxe) with Athelon XP 2100+. I set the external CPU frequency at 133Mhz with Multiplier 13X. Because I have 2x 256MB DDR400 (PC 3200) memory I set the memory frequency to 150%. But the output of the memory only shows 200Mhz. Did I setup anything wrong? Do I have to modify anything the maximize my use of DDR400 RAM? Also My memory test shows only 26000KB when I boot it up. Doesn't it have to show about 52000KB because I have two 256MB memory installed? Lost of questions, lots of answers please!!!

 

I am in the process of this to. I think it would be using a multiplier of times 2. I just set mine to 166 for 333ddr. gave me options of 133 for 266ddr and mine then 200 for 400ddr.