The XeDK Beta1 is the first prototype console available post Alpha era. It is not built on "borrowed hardware" like the Alpha kits. It is suspected to contain only 2 of the 3 available cores available in the final revision, as well as a confirmed lower clock speed of 2.8GHz due to a manufacturing error.
Known motherboard hardware revisions.
- X801054-001-004, Unconfirmed existence, suspected internal engineering kits.
- X801054-005, Spotted on internal beta kit.
- X801054-006, A board is confirmed to exist, shell is missing sadly.
- X801054-007, Found in all prototype XeDK's.
- 2.0.1616.7, Suspected first post Alpha recovery. Comes pre-flashed on kits.
- 2.0.1625.0, Recently discovered, nothing known. Strings mention it in hard drive files.
- 2.0.1810.5, NAND flash contained in Beta2 kits have this sticker, suspect they are pre loaded with it, wonder if they'll run XEX1?
- 2.0.1834.0, Internal revision, spotted on 005 kit.
- 2.0.1838.1, Suspected last Beta1 recovery.
- Only Beta1 come with a black fan shroud, and black RF board bezel.
- Larger rubber feet.
- Black rubber USB doors and different faceplate structure, raised sync button, combination of raised and inset memory card door engraving.
- The earlier Beta1 have a hard drive layout that is suspected to be similar to that of the Alpha kits.
- The Beta1 kits contain a CPU sub-board that utilizes the JTAG header to assist with booting (will not boot without it). Referred to as the "Titan", it apparently patches the boot flow on startup. Uses a Xilinx CPLD of some sort.
- Small 3 pin header on the back of the DVD drive near the SATA connector, function is unknown.
- DVD drives spotted in the Beta1 kits have all been Hitachi 32CE so far, have not seen one with a Samsung drive yet.
- CPU revision is x02046-001, the only Xbox 360 CPU diffused in Canada.
- GPU revision is x02056-008.
- Major chips on the board are engineering samples.
- 005 Internals use leaded solder.
- Prototype RF board incompatible with final wireless controllers.