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Xbox 360 revisions zephyr motherboard.jpg
Zephyr Motherboard
Introduced April 2007
CPU Process 90nm
GPU Process 90nm (later 80nm)
eDRAM Process 90nm (later 80nm)
Power Supply 203 W
NAND 16MB (Devkit 64MB)
Special Notes The first Xbox 360 motherboard revision to feature HDMI connectivity
Power Rating 12V⎓16.5A
Power Connector
Powerconnector xenonzephyr.png

Zephyr was the second revision of the Xbox 360 motherboard and case and was originally exclusively available only with Elite consoles. Zephyr was the first Xbox 360 motherboard revision to have HDMI, and HANA chip, as well as redesigning much of the board. This revision also reduced the GPU die size from 90nm to 80nm, and depending on GPU model, the eDRAM die size as well.

Performing the SMC Hack requires a slightly different set of connections to Xenon motherboards.

  • Consoles: Arcade, Pro/Premium 20GB, Elite 120GB, and Halo 3 Console
  • 90nm IBM CPU
  • 80nm or 90nm ATI GPU (depending on GPU model)
  • 80nm or 90nm eDRAM (depending on GPU model)
  • 203 Watt PSU (16.5 A)
  • HDMI video output
  • Updated motherboard layout
  • Glue around the CPU in some cases
  • 3 pin fan connector
  • New Extended GPU heat sink with a heat pipe
  • New Elite model includes 120GB hard drive
  • Shipping with Hitachi 78 or 79 and BenQ DVD-Drive. May also have Lite-On drive if it was refurbished.