Jasper

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

Notable Differences

  • The 80nm Rhea GPU has been replaced with the 65nm Zeus GPU
  • The XSB has been replaced with the PSB
  • Arcade Jaspers came with 256MB (later 512MB) nand chips that combine system storage and a Memory Unit
  • Traces and pads for an additional flash controller (referred to as "DUMBO" or "PANDA") have been added, but never populated
  • Other small changes were made to the board layout
  • 8x64MB Hynix H5RS5223CFR RAM was added, only used on a small number of boards
  • Very late Jaspers manufactured in July 2009 come with the Kronos GPU instead of the Zeus GPU

Specifications

Tonasket

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The Tonasket (also known as Kronos) is the successor to the Jasper, and is the final motherboard used in the Original Xbox 360 series. Despite having a different name, it is still considered a "Jasper" by Microsoft.

Notable Differences

  • The 65nm Zeus GPU has been replaced with the 65nm Kronos GPU, which shrinks the eDRAM to 65nm
  • The 256MB nand chip was no longer used, only 512MB configurations were used in Arcade
  • The additional traces and pads for DUMBO/PANDA flash controller were removed
  • An alternate simplified standby circuit for V_3P3STBY and V_1P8STBY was added, but only some manufacturers used it
  • The board layout was cleaned up
  • 8x64MB RAM configurations are no longer used
  • All motherboards use an updated RF02 board
  • The extended GPU heatsink was reverted back to the low profile GPU heatsink

Specifications

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