Long term effect: Status Report.
I did my first 8 cents fix back in June '07. 11 months later, it's still going strong. Over a period of time, I fixed (ebay bought, friends, brother in law, sons friend, sons friends dad/uncle/ and cousin, neighbors, neighbors daughters boyfriend, and coworkers) well over a dozen Broken Xbox 360 with no reported ill effects.(2RROD, 3RROD, and turbo fan) I've noticed; however, quite a few posts are related to 2RROD (over heat) after doing pennies fix.
Well, here are my 2 cents over 8/12 cents fix.
Please, I dont want to get into a debate of why and how my way works. All credits should go to kidderboots. Thanks to him, we have a lot simpler way to fix 3RROD. If you need someone/something to blame, blame MS for not doing their homework and forcing all us to be a beta tester.
Who knows? I may well have been lucky. Well, I just want to share what Ive done.
1. When I do my work, I dont do usual "Remove existing T-paste and apply AR5, then reassemble x-clamp". Many, including me, do concur that it should be a standard practice. But after doing so many favor, I just dont want to go through it.
2. I use pennies with most copper content. (Pennies made between 1965-1980)
3. I do apply very small amount of AR5 to fill a gap/spaces when I sandwich two pennies.(Between two pennies)
4. I dont wrap pennies with electric tape. My theory is if memory overheating does contribute to 3RROD, last thing I wanted to do is further limit the heat dissipation by using non heat conductive/transfer material. I used HVAC aluminum tape(Tape used to seal A/C ducks) and cut to proper size(two stacked pennies height) to wrap around sandwiched pennies. Many will argue that Im at a risk of frying circuit board since theres a chance of pennies slip and making contact(s) with components. Thermal pads should keep pennies from moving around. Also, when owner do take care of their high dollar investment by not dropping, shaking, tripping, and kicking. In other word, use common sense, it shouldnt be a problem.
3. I do recycle thermal pad on RAM. I trim/cut to 4 equal pieces and remove cloth lining so it can stick to RAM and metal casing. I use two cut pieces (one for RAM contact and the other one to contact metal casing). Purpose of it is to fill gap/space to increase friction and add a benefit of using metal casing as a heat sink.
4. I do use all 8 black screws when I re-assemble. I just dont TIGHTEN them up.
5. Few consoles that I worked on had to go through over heating (2RROD) process to give a jump start. I dont use towel. I use screw drivers to prevent fans from spinning.
Once again, I thank kidderboots for his contribution. (And you should, too.)