QUOTE(cookie_monster @ Dec 8 2008, 07:29 AM)

dwells - what exactly did u do to fix the e74 error?
I just used foil and plastic to cover the board as was recommended and used my embossing gun for about 5 minutes each for the top and bottom, holding it about an inch from the board's surface. I worked in small circles and focused on the CPU, GPU, and ANA (pushing down on it after applying heat), as well as the areas connecting these chips. I might have additionally done a couple 1 or 2 minute runs on both the top and bottom just to be sure.
I removed both heatsinks ahead of time and cleaned all the Microsoft thermal material from both the heatsinks and chips using high-purity isopropyl alcohol and a alcohol-based adhesive remover. After heatgunning the system, I allowed it 45 minutes to cool and then applied Arctic Silver Ceramique to the heatsinks themselves, rubbing it onto the heatsink and then cleaning it out. This allows it to sink into the ridges of the metal.
Then I applied small (half-grain of rice size) amounts of Ceramique to each chip. Ceramique, unlike a lot of other thermal pastes, is not electrically conductive, which is great for GPU which has the two surfaces so close to each other. Put the heatsinks back on, reassembled, tested, all was well.
Now that I know it works and assuming I can fix the DVD drive (check the link in my sig if you'd like to help), I'll be doing an X-Clamp fix and replacing the cracked case.