Originally Posted by bkolk
but even if the ratio is not 1:1, how can the memory be effectively running faster than the FSB. Don't these two talk to each other directly?
And im talking everything stock, so not changing anything in the bios ratios. (Though i dont have this setup and dont know what the stock ratio would be)
The RAM is effectively running at it's stock speed faster than the FSB, because it's told to do so. It's like it's hard wired, into it's head, that 400MHz is the speed they're suppose to run at. Unless it is told to run at another speed, by you changing the divider.
On stock, everything will run at their stock speed. And so the 1333FSB will run at 333MHz, and the RAM will run at 400MHz. They don't necessarily have to walk beside each other, hand in hand, all the time.
For example. When my motherboard is set to default, the FSB is running at 266MHz, while the RAM is running at 400MHz. 12:8 ratio. But you can set them to run 1:1, by changing the FSB:RAM or divider.