May 31,2023

About power supply's Connector pin diagram

Power supply connector pin diagrams can vary depending on the specific type of connector and the power supply manufacturer. However, I can provide you with information about some commonly used power supply connectors.

ATX 24-pin Connector: The ATX 24-pin connector is the primary power connector used in most modern desktop computers. It consists of a rectangular plastic housing with 24 pins arranged in two rows.

The pinout for this connector is as follows:
  1. Pin 1: +3.3V
    Pin 2: +3.3V
    Pin 3: Ground
    Pin 4: +5V
    Pin 5: Ground
    Pin 6: +5V
    Pin 7: Ground
    Pin 8: Power Ok
    Pin 9: +5V Standby
    Pin 10: +12V
    Pin 11: +12V
    Pin 12: +3.3V
    Pin 13: +3.3V
    Pin 14: -12V
    Pin 15: Ground
    Pin 16: PS_ON (Power Supply On)
    Pin 17: Ground
    Pin 18: Ground
    Pin 19: +5V
    Pin 20: +5V
    Pin 21: +5V
    Pin 22: +5V
    Pin 23: +5V
    Pin 24: Ground

     
  2. CPU Power Connector: Modern motherboards often require an additional power connector to supply power to the CPU. There are two common CPU power connectors:
    4-pin CPU power connector (ATX12V): It consists of a square-shaped housing with four pins. The pinout is as follows:
    Pin 1: +12V
    Pin 2: Ground
    Pin 3: Ground
    Pin 4: +12V
    8-pin CPU power connector (EPS12V): It consists of a rectangular housing with eight pins. It is backward compatible with the 4-pin connector.
    The pinout for the 8-pin connector is as follows:
    Pin 1: +12V
    Pin 2: Ground
    Pin 3: Ground
    Pin 4: Ground
    Pin 5: Ground
    Pin 6: +12V
    Pin 7: +12V
    Pin 8: NC (No Connection)

     
  3. PCIe Power Connector: PCI Express (PCIe) power connectors are used to provide additional power to high-performance graphics cards and other PCIe devices. There are two common PCIe power connectors:
    6-pin PCIe power connector: It consists of a rectangular housing with six pins. The pinout is as follows:
    Pin 1: +12V
    Pin 2: Ground
    Pin 3: +12V
    Pin 4: Ground
    Pin 5: Ground
    Pin 6: +12V
    8-pin PCIe power
    connector: It consists of a rectangular housing with eight pins.
    The pinout is as follows:
    Pin 1: +12V
    Pin 2: Ground
    Pin 3: +12V
    Pin 4: Ground
    Pin 5: Ground
    Pin 6: +12V
    Pin 7: NC (No Connection)
    Pin 8: NC (No Connection)


It's important to note that pinouts can vary between power supply manufacturers and specific models. Therefore, it's always recommended to refer to the documentation provided with your specific power supply for accurate pinout information.