Quote Originally Posted by cadaveca View Post
GTL is like inter-FSB communication votlage...voltage for core-core communication. AS the FSB is the bus used for this communication, CPU PLL has a similar effect as well, however you'll find that GTL tweaking only really shows signifigant gains for quadcores, and not duals, as the source for each of the operation's votlages(GTL, CPU PLL) are related, but not the same.

GTL is liek the "low" setting to "HIGH" setting voltages for communication, "low" being like a "0", and "HIGH" being a "1". these ride within the FSB voltage, but FSB is bus for cpu-chipset, and each provides it's own power source for out-bound communication, so each must be tweaked individually, as each will ahvea a differeing load on them, based on what work is being done. A board with lots of expansion cards and 4 DIMMs is more likely to need chipset FSB volts than CPU FSB volts, due to the load on the chipset, while on a board with jsut a vidcard and two DIMMs, it's not going to be as important.

SAme for the cpu..quad is more work than dual, and hig FSB is more work as well...so hopefully by now you kinda understand what's going on with these settings.
yeah im pretty familiar with the gtl voltage tweaking having gone through two dfi's with my quad, but it just seems like this asus board has a more broad way of adjusting these settings than most other boards. i know the dfi and the newest abit's all adjust it point by point and per core. i guess its a good thing, what took me days of finding stability on my dfi took me maybe 20 minutes on this asus. so im just kinda curious as to how asus is doing this. maybe a table that is in relation to the vtt? as i know the vtt and the gtl voltages to have a pretty direct relation