Power Rails (S/E)

For Original Xbox 360, see Power Rails (Original).

The Xbox 360 S and Xbox 360 E motherboards have 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: 0.9-1.2V, controlled by CPU via APS
• Source: V_12P0
• Purpose: CGPU Power

V_CPUEDRAM

• Voltage: 1.075V
• Source: V_12P0
• Purpose: eDRAM Power

V_CPUVCS

• Voltage: 1.25-1.3V, controlled by CPU via APS (CPU VID * 1.4)
• Source: V_5P0
• Purpose: CPU VID Power