[-0MEGA-];844321 said:What does CPU-Z say it is? It's possible that you have PC3200 memory, but your motherboard only supports up to PC2700.
Read your Mobo's manual, Some mobos bottleneck the speed of RAM with the CPU Bus speed.
Maybe you should do a BIOS flash.
If all of your slots are filled, it will downclock to the next lower level. That might explain it. DDR400 RAM is being used, but is running at DDR333 speeds.