Found your pictures,
The memory Tab you may need to manualy enter your details, these will be printed on your memory modules. You need to highlight the DRAM Timing Selectable and hopefully change to manual, then highlight the speed and change the speed ie 800mhz or 1066mhz depending on your memory, then highlight the next 4 rows individualy and change to whats stamped on modules ie 4-4-4-12.
The BIOS seems to be showing the correct speed in most of the screens, but you have EIST & C1E enabled which changes the multiplier between 6 & 9 depedant on load, (this can seen when running CPU-Z in windows) but not sure why the BIOS would show this, usualy this shows the default speed.
What does PC health status show, I'm surprised you don't have a screen which shows volatges and actual cpu details.