Power Rails (Original): Difference between revisions

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* Source: [[#V_12P0|V_12P0]]
* Source: [[#V_12P0|V_12P0]]
* Purpose: [[GPU]] and [[eDRAM]] Power
* Purpose: [[GPU]] and [[eDRAM]] Power
==== V_CPUVCS ====
* Voltage: 1.32-1.68V, controlled by [[CPU]] via APS (CPU VID * 1.2)
* Source: [[#V_5P0|V_5P0]]
* Purpose: [[CPU]] VID Power


{{Motherboard Components}}
{{Motherboard Components}}

Revision as of 14:03, 5 June 2023

For Xbox 360 S and Xbox 360 E, see Power Rails (S/E).

The Original Xbox 360's motherboard has various rails which power components of the system.

Main Power

V_12P0

  • Voltage: 12V
  • Source: Power Supply
  • Purpose: Full-On System Power

V_CPUCORE

  • Voltage: 1.1-1.4V, controlled by CPU via APS
  • Source: V_12P0
  • Purpose: CPU Power

V_GPUCORE

  • Voltage: 1.075-1.150V, controlled by VID strapping
  • Source: V_12P0
  • Purpose: GPU and eDRAM Power

V_CPUVCS

  • Voltage: 1.32-1.68V, controlled by CPU via APS (CPU VID * 1.2)
  • Source: V_5P0
  • Purpose: CPU VID Power


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