The xclamp fix isn't a good fix; try the xclamp trick hybrid. I also don't have the materials for a jtag mod, and I've never done one, so I would rather not try a first attempt on a 360 I don't own.Actually, save your money... I can almost guarantee you that you can handle this yourself, easily...
What it sounds like from you description of the problem is that you simply used way too much thermal paste on the chips. Honestly, they only need a very light covering (about 2 grains of rice on each chip). The reason you are getting the overheat code is because the chips aren't making a good connection with the heatsinks. try to clean them off really good with alcohol prep pads and redo the paste. The Xclamp works fine and there is no benefit to the more costly "hybrid" clamp. Remember, and seriously... remember.... when putting the screws back in ( screw,metal, nylon, board, nylon, metal, heatsink) only tighten the screws as far as you can with your bare hand... no joke.
And Halo3... jtagging is 95% hardware. The software installation is very basic.
Lemme know if that helps.
Edited by halo3, 02 February 2010 - 09:33 PM.
