What Version of Xbox do I Have?

Step by Step Xbox Version Detection

Please make sure you follow this tutorial from the beginning:

First locate the RAM chip area on your Xbox main circuit board, it is in the same position for all versions.

RAM Chip Position All Versions

Image 1: "Samsung" marked on chip

Samsung RAM Chip

Image 2: "Hynix" marked on chip

Hynix RAM Chip

Do you have:

Image 1: You have a Version 1.6
Image 2: You have a Version 1.6b