MOLEX PERIPHERAL POWER CONNECTOR PC

The PCIe* CEM Specification defines different connectors based on the power used by the Add-in Card which can range from 75 watts up to 600 watts. The most common PCIe* Add-in Card that uses these connectors are discrete graphics cards. These are optional connectors for the power supply to support additional power needed by any PCI Express** Add-in Card (AIC).

PCI Express* (PCIe*) Add-in-Card Connectors (Recommended) Table 5-3: Extra Board Connector – Required vs. It is optional on PSU that is equal to or less than 450 Watts. Therefore this connector is only required on PSU that are greater than 450 Watts. Since the Extra Board Connector is optional on the motherboard and is expected to be needed only for higher power motherboards, this can be correlated to PSU size. Two connectors can also be used if the 240VA Safety requirements are needed for the PSU. This connector can provide an additional 216-288 watts of power to the motherboard to support multiple PCIe* connectors, multiple USB ports, or other expansion slots. If board power requirements are higher than what can be provided by the 10 pin Main Board Connector, the Extra Board Power connector can be used. Extra Board Connector (Based on PSU Size) Voltage Sensing Pin details in Section 4.2.3. Pin 10 is used for both main 12V Power and the optional Voltage Sensing wire for the power supply to provide the correct voltage to the motherboard. Board designers need to figure out total board power and if this single connector provides enough power for each board. This connector can provide up to 216 to 288 watts of power using the assumption that each pin can provide 6–8 Amps. This power connector is designed as the main board connector and for smaller to medium size boards this is the only connector that is needed.

MOLEX PERIPHERAL POWER CONNECTOR PC

Figure 5-2: 4.2 mm Power Header 10 pin Main Power - Pin Locationsįigure 5-3: 4.2 mm Power Header 10 pin Main Power – Motherboard Connector, PC Board Layout with Dimensions Connector needs to support 8 amps per pin. Below is the key for this connector, from motherboard connector view.

Contact the preferred connector provider for details.

This connector may be provided by other connector companies beyond what is listed above. Motherboard connector color is recommended to be white to show that power into the board is different color than power going out of the board (3 mm SATA Power Connector), which is recommended to be black. Note connector color can be changed work with connector companies to see what they provide. The mating pilers are unique to this design, refer to figure below. Table 5-1: 4.2 mm Power Header Main Power Connector Part Numbers Smaller board sizes can only use this connector. Main Power Connector for motherboard with control and standby rail connections are required. Measurements are made from the exit port of the power supply case to the wire side of the first connector on the harness. That is very short, and most power supplies need wire harness cables longer than 150mm, consider market conditions and chassis sizes for power supply market wire harness lengths. M i nimum harness lengths for general-use power supplies are 150 mm for all wire harnesses. Ideally, wires should be short to minimize electrical/airflow impedance and simplify manufacturing, yet they should be long enough to make all necessary connections without any wire tension (which can cause disconnections during shipping and handling). There are no specific requirements for output wire harness lengths, as these are largely a function of the intended end-use chassis, motherboard, and peripherals. UL Listed or recognized component appliance wiring material rated min 85 ☌, 300 VDC shall be used for all output wiring. The power supply requires an additional two-pin, power connector. The below table shows pinouts and profiles for typical power supply DC harness connectors.

Molex peripheral power connector