We've been through your nonsense "it won't void the warranty" on numerous threads before.
Your advice is going to cause some folks a lot of expense.
#tubexperience doesn't care about that. He doesn't care that Apple stores will likely refuse to honor the warranty if they discover that the machine's seal has been broken and the unit opened. He's on a crusade to make people think that there can be no possible problem with their warranty if they break open their brand new iMac. He's wrong, he knows it, and he doesn't care that it will take time, money and tremendous effort to try to enforce the warranty under those circumstances. He is on a crusade, and like most crusaders, he doesn't care about the practical consequences to anyone on this forum.