[airspirit]

Er, to the above "metric evangelist", many of us are from the states and like our old school measurements. Further, many of the pumps sold here are sold using GPM. You will notice, however, that we use degC since, again, it has become a relative standard in our circles. You may want to think about what you are saying before you charge in and call many established experts in this area (and senior members of this forward) a bunch of backward ninnies because YOU don't prefer our units of measurements. Prove and establish yourself before making a useless comment such as that, because from where I stand, it just looks like you want to be written off as a troll.

Some blocks like to have a good 3-4 GPM running through them. Some like more. 1 GPM (around 4 LPM) is absolutely NOT a good idea for many of the blocks out there currently and would cause instant meltdown in some of the systems that we are trying to cool.

If I cut my bypass off in my cooling chest it lowers my flow rate to around 1.3 GPM per block (over 5 LPM, IIRC). Doing this causes my temps to go up around 6-7C. I like to keep my flow rates at least over 2.5 GPM per block to ensure that I'm cooling adequately. Are these results a figment of my imagination?

To further understand this, go read some of BillA's reviews on overclockers.com. The graphs might open your eyes to the fact that your ideas, however grounded in fact you may think they are, are incorrect.