Free60-Wiki

The XBox 360 motherboard has gone through several changes over the years. These changes often reduced die sizes of various chips (CPU (Xenon), GPU (Xenos), eDRAM, etc.), added new features (HDMI, etc.) and patched the SMC/JTAG exploit. This pages lists off all known motherboard revisions, their changes as well as links to their respective pages.

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Xenon (V1)

The original Xbox 360 configuration used in the initial Premium and Core machines released in the end of November 2005. These are also known as the RRoD (Red Ring of Death) machines because the GPU chip warps away from the motherboard because of excessive heat.

Zephyr (V2)

Zephyr was the first revision with HDMI connector. It was introduced with the Xbox 360 Elite in May 2007. In July 2007 Xbox 360 Premium machines began appearing with the Zephyr motherboard.

Falcon (V3)

All Xbox 360 Premium machines and Arcade machines made in August 2007 introduced the new 65 nm CPU accompanied with a new cooler and still 90 nm GPU with the Zephyr cooler. The motherboard is based on Zephyr and requires fewer components (some capacitors and coils removed) for the new 65 nm CPU, resulting in lower costs.

Opus (V3.1)

This is an intermediate motherboard with 65nm CPU and 90nm GPU, new coolers, but no HDMI. It will be used in Xenon chassis for repairs and RRoD affected machines. Started to appear end of July 2008 in machines coming back from repair. It’s just a Falcon without a custom A/V (HDMI) port so that it fits into a Xenon chassis and case.

Jasper (V4)

Jasper introduced the 65nm GPU to reduce power usage and cost further. The new power supply is rated for 150 Watt, down from 175 Watt on the Falcon. The Amperage on the 12V rail is down to 12.1A (12.1A x 12V = 145.2W).

The on-board flash has also increased to allow the new NXE (New Xbox Experience) dashboard update to reside internally, instead of requiring a memory unit or the hard drive.

Jasper (V4.1)

Same as Jasper (V4), minor changes.

Trinity/Valhalla (V5) [New Slim Xbox 360]

Corona (?)

Referenced in 20353 xbdm.dll, nothing known right now, possibly the newer cheaper XDKs?

Information on this board so far:

The interesting thing is that it seems that Microsoft knew about the Reset Glitch Hack, so they removed the HANA Chip. So it seems Microsoft found the exploit days before GliGli brought it out for the public.

Corona Sources: Source 1 Source 2

Category:Xbox360_Hardware