Help!! Why only 266?

[holyghost]

Am having an Abit NF7-S mobo using XP2600 & 2pcs of 256MB 3200 DDR. Why does the board shows only DDR266 memory frequency on startup screen. Why is it not DDR 400? The board does showed Dual DDR Enabled. Is there something missing here? Please help.

 

[egale]

What CPU are you running? The memory will default to the fsb of the processor.