Confused by the memory speed options in the BIOS

[CalvinHobbes]

I have a Gigabyte DS3L and a C2D E6550 and 4GB of DDR2.
In the BIOS the memory speed options are AUTO, 2.00, 2.10...4.0+.

I'm used to seeing some type of a divider so I can raise my FSB and then lower the divider of the RAM if I need to. In this case it allows me to add a multiplier and not reduce it.

Is this how all motherboards work now?

 

[Tempered81]

Not quite sure, but I think the "2.00" is going to be FSBRAM 1:1.

 

[VirtualLarry]

Yeah, 2.0 is 1:1. Ratios go up from there.