For those of you that might have questions on Manufacturing, Testing, Shipping, Parts, and Service Tag process. This
might help answer a lot. It may be a little dated
but for the most part it does a good job of explaining Dell's process.
Area 51 Cosmic Black/Windows 8.1 x64 Pro/BIOS A11 Intel Core i7-975x Extreme Edition @ 4.0 ghz 12GB Mushkin Enhanced Redline 1600 DDR3 Asus Rog Matrix-HD7970 Platinum