The 4-Pin DC Power Cord provides basic DC power input with the addition of two programmable signal lines. One of the signals lines is an input line, while the other can be configured as either an input or output line.

What is the 4 pin 12V connector for?

ATX 4-pin 12V Power Connector Pinout





The ATX 4-pin power supply connector is a standard motherboard power connector used to provide +12 VDC to the processor voltage regulator.

What is a 4 pin connector called?

AMP four-pin Mate-n-Lok. AMP Mate-n-Lok 1-480424-0 Power connector (female pins, male connector) Type. Electrical power connector.

What kind of input does the DC pin accept?

The 6-pin 1B LEMO connector accepts DC input power from 11.5 V DC to 17 V DC. A built-in power conditioner protects against reverse-polarity connections, electrostatic discharge (ESD), undervoltage, overvoltage, and overcurrent.

How does a 4 pin connector work?

A four pin connector is a little different than the three pin connector since it has the extra (fourth) wire used for controlling and sending signals to the fan, which likely has a chip on it that tells it to slow down or speed up (in addition to the other wires the three pin connector has).

What is a 4 pin floppy connector?





the four-pin polarized Berg connectors used to connect 3½-inch floppy disk drive units to the power supply unit, usually referred to as simply a “floppy power connector”, but often also referred to as LP4. This connector has a 2.50 mm (0.098 in) pitch (not 2.54 mm).

What is a 4 pin Molex connector?

Often refers to the 4-pin connectors used to attach DC power to the drives inside a PC cabinet. Molex is a large manufacturer of electronics plugs and sockets that dates back to the 1940s.

Do I need 4 pin ATX?

This connector is used to supply additional 12V current to the motherboard. While the system will likely still run without it, higher current demands such as extreme overclocking or large video card current draws may require it.

What does a Berg connector do?

The 2-pin Berg connector is used in connections for turbo switches, front panel lights, jumpers for motherboard configuration and reset button to the motherboard of the computer. Like most connectors, Berg connectors were also keyed in order to avoid improper connections or incorrect mating.

Where do you connect the power supply on a 4 pin processor?



Connect the 4 or 8 pin CPU power cable to the motherboard. Depending on the motherboard, you may need the 8 pin power connector. Connect the 4 pin powersupplys to the power supply. 4 pin powersupplys can include CD/DVD ROMs, Hard drives, card readers, fan controllers or case fans.

Why is 4 pin connector on motherboard?

As the motherboard specification says, it’s a 4-pin ATX 12V power connection. Pretty much every modern motherboard has a separate 12V power connector that’s either a 4-pin or an 8-pin. The primary purpose of this power connector is to power the VRM that supplies power to the CPU.

How do you test a 4 pin power supply?

How to: Test a power supply unit

  1. Shut off your PSU.
  2. Unplug all cables from the PSU except for the main AC cable and the 24-pin cable.
  3. Locate pin 4 and pin 5 on your 24-pin cable. …
  4. Bend your paper clip so the ends can be inserted into pin 4 and pin 5. …
  5. Turn on the PSU.
  6. See if the PSU fan turns.


How much power does a 4 pin connector provide?

4 pin peripheral power cable

Unofficial cable/connector maximum wattage delivery
Voltage rail Number of lines Maximum wattage
+5 volts 1 25 watts
+12 volts 1 60 watts

What voltage is SATA?

The new SATA power connector contains many more pins for several reasons: 3.3 V is supplied along with the traditional 5 V and 12 V supplies. However, very few drives actually use it, so they may be powered from a four-pin Molex connector with an adapter.

Do you need both 8 pin and 4 pin CPU power?



You do not have to plug that extra 4 pin CPU power connector on the board. The 8 pin is more than enough for running the system. You’re totally fine without it. If you’re upgrading to a RTX 3070 or 3080 and a Ryzen 5600X your 650 Watts should be enough since it’s a good model.

Is Molex a 5V?

All the other plugs coming out of the power supply—called Molex connectors—are for drives, and they provide +12V (yellow) and +5V (red) power, as well as two ground wires (black).

Can you convert Molex to SATA?

Another option is to use a molex to SATA adapter cable. By going this route, you won’t need to worry about swapping out your power supply. Instead, all you need to do is plug the adapter into your PSU. Then plug your hard drive into the other end, and you’re good to go.

What is a P4 connector?

The P4 connector is a 12V power supply cable used with motherboards that have an Intel Pentium 4 or later processor. Today, the connector is a standard power connector and is used with both Intel and AMD motherboards.