I'm pretty new to building computers. In my Asrock mobo, everything was set to 1600 in the BIOS. It still reads 1600 in bios after i went in there multiple of times. In CPU-Z, the DRAM is 800mhz which seems correct (800x2=1600). What I am confused about is that my SPD max bandwidth says 667mhz. I really don't know what SPD max bandwidth is but I feel like its saying the max my memory can go to is (667mhz X 2)when everything else is registered 1600 (bios/cpu-z DRAM). is SPD bandwidth something i should not be concerned about since both the DRAM frequency is 800mhz and my bios says 1600 for both my corsair vengeance(4gigx2
SPD is serial presence detect http://en.wikipedia.org/wiki/Serial_presence_detect
It shows the default settings for the RAM module (set by the manufacturer).
The RAMs run at 1333, with default BIOS settings and 1600 by enabling the XMP or manually setting the XMP values.
Thanks for the quick response! I feel a bit better, although i am concerned that 3dmark reads (667x2) and task manager (windows 8) reads 1333mhz. I am just going to have to trust my BIOS instead of the other software.