If you set it to 2.5 its a 4:5 ratio.....
Say your FSB is 400MHz your memory will be 1000MHz which is a 4:5 FSB:RAM ratio. Mine says 10:8 RAM:FSB ratio which is the same as 4:5 FSB:RAM ratio
Edit: on my bios i dont see the ratio thingy otherwise i would just set that to 2 and then overclock away without worrying about my ram being too fast or too slow as its 1:1 ratio. But i dont see it maybe ill try that Ctrl + F1 thing and see if it works.
Say your FSB is 400MHz your memory will be 1000MHz which is a 4:5 FSB:RAM ratio. Mine says 10:8 RAM:FSB ratio which is the same as 4:5 FSB:RAM ratio
Edit: on my bios i dont see the ratio thingy otherwise i would just set that to 2 and then overclock away without worrying about my ram being too fast or too slow as its 1:1 ratio. But i dont see it maybe ill try that Ctrl + F1 thing and see if it works.