Well I'm kinda basically overhauling my G5 LCS so I figured, why not lets try and put a heatsink from my 1.8ghz G5 onto the quad G5 CPU since I have it out. I only have one CPU in it right now and it's actually doing pretty damn good. I set the Energy prefs to Reduced as a precaution. If I ditch the LCS and make this a permanent setup, I will have to machine some custom brackets to hold the heatsinks to the logicboard/case. I have the G5 laid on it's side at the moment since there is no way to fasten the 1.8ghz heatsink down. Below is a screenshot of the temps This is with a constant 50% load on the CPUs as I just have it folding right now.