Hi me again 
Got my new build working but my ram keeps going up to 100% usage on vista randomly, forcing me to reboot.
I have 4gb of DDR3 1600mhz corsair dominator ram. Its running on a board that only supports 1600mhz if you OC it, i had left it @ the default setting to this point, thinking it'd set itself to 1333mhz automatically.
i have just gone into bios and set it manually to 1333mhz, could this have been the problem?

Got my new build working but my ram keeps going up to 100% usage on vista randomly, forcing me to reboot.
I have 4gb of DDR3 1600mhz corsair dominator ram. Its running on a board that only supports 1600mhz if you OC it, i had left it @ the default setting to this point, thinking it'd set itself to 1333mhz automatically.
i have just gone into bios and set it manually to 1333mhz, could this have been the problem?