I have a Gigabyte GA-7VRXP Rev 2.0 board and one 256MB chip from Crucial. It's rated by Crucial to run at only CAS 2.5 (it appears Crucial hasn't come out with CAS 2.0 DDR 2700 RAM yet.) Has anyone had any success getting the Crucial 2700 RAM to run at CAS 2.0 and if so how was it accomplished?