Falcon

The Falcon is the successor to the Zephyr_C and is used in the Original Xbox 360 series.

Notable Differences

• The 90nm Waternoose2 CPU has been replaced with the 65nm Loki CPU
• When the revised GPUs rolled out, around March 2008, all board started using Qimonda HYB18H1G321AF-14 RAM in a 4x128MB config
• Around March 2008, fixed GPUs started being used
• The CPU voltage regulation is now 2 phases, down from 3 phases, but the pads and silkscreen for the third phase still remain
• The board layout has been modified to support the 65nm CPU
• Other small changes were made to the board layout
• The J7G3 Titan connector on the front of the motherboard was left on the final motherboard
• Some later boards used solid state capacitors for the CPU and GPU output filters
• The heatpipe CPU heatsink was replaced with the aluminum CPU heatsink

Specifications

• 65nm IBM Loki CPU
• 80nm ATi Rhea GPU with integrated 80nm eDRAM
• 512MB DDR3 RAM
  • 8x64MB Hynix HY5RS123235B (Early Models)
  • 8x64MB Qimonda HYB18H512322AF-13 (Early Models)
  • 4x128MB Qimonda HYB18H1G321AF-14 (Mid/Late Models)
• XSB Southbridge
• HANA
• 16MB Hynix HY27US08281A Nand
• Boardcom or ICS Ethernet PHY

Opus

The Opus motherboard is exactly the same as the Falcon, with exception to a custom A/V port that is installed, and the removal of the HDMI port. These modifications allow the Opus to fit into the casings for a Xenon. This was used for refurbishing defective consoles until the Elpis boards started being produced. The part number is also the same as Falcon.

Notable Differences

• Removal of the HDMI port
• Custom A/V port to fit the HDMI board layout while being able to fit into the Xenon casing
• All Opus' use 4x128MB Qimonda HYB18H1G321AF-14 RAM