Elpis (Motherboard)

Elpis

Part Number	X803600
Introduced	Early 2009
Type	Motherboard
Used In	Xbox 360 (Original)
CPU Type	Waternoose2
GPU Type	Elpis
CPU Process	90nm
GPU Process	80nm
eDRAM Process	80nm
Nand Size	16MB
Video Outputs	A/V Multi
Wattage	203W
12V Amperage	16.5A

The Elpis motherboard is a revision created by Microsoft out of a Xenon, with exception to the GPU and the software. Elpis motherboards were used for refurbishing defective Xenons up until 2011.

Various part numbers have been spotted on stickers placed on the top edge of Elpis boards. They include:

• X803413
• X805954
• X807381

Notable Differences

• The 90nm Y1 GPU has been replaced with the 80nm Elpis GPU
• The board uses the 7xxx series CB bootloader instead of the 1xxx series used on Xenon
  • The reason for this is unknown as the 1xxx series bootloaders work just fine with Elpis

Specifications

• 90nm IBM Waternoose2 CPU
• 80nm ATi Elpis GPU with integrated 80nm NEC eDRAM
• 512MB DDR3 RAM
  • 8x64MB Infineon HYB18H1G321AF-14
  • 8x64MB Samsung K4J52324QC-BC14
• XSB Southbridge
• ANA
• 16MB Hynix HY27US08281A Nand
• Boardcom or ICS Ethernet PHY
• Cypress Clock Generator
• Heatpipe CPU Heatsink
• Extended GPU Heatsink