What Is The Difference Between 20 And 24 Pin Power Supply?

What is a 20 pin connector?

An ATX style connector is a replacement for the older P8 and P9 AT style connector.

It is one of the largest connectors inside a computer.

It connects a power supply to an ATX style motherboard.

As shown in the picture, the 20-pin cable is a multi-color cable and may be labeled as P1.


Do you need both 24 pin and 8 pin?

Yes, you need both. The 8-pin provides extra lines dedicated to the CPU. Yes, you need both. The 8-pin provides extra lines dedicated to the CPU.

How do you remove a 24 pin connector?

The way how I did it is that I push the clip, wriggle the connector from side to side, then pull out the connector. If the connector won’t come out, push the clip and wriggle some more. Make sure you are pushing the clip the whole time.

What is SATA cable?

Serial ATA (SATA, abbreviated from Serial AT Attachment) is a computer bus interface that connects host bus adapters to mass storage devices such as hard disk drives, optical drives, and solid-state drives.

Why will my computer not turn on?

Computer not plugged in, empty battery, or loose cable Make sure that the power cables of the computer are firmly plugged in and the power outlets are switched on. Make sure that the monitor is plugged in and switched on too. If you have a laptop, connect the charging cable (in case it has run out of battery).

Can a 20 pin power supply be used on a 24 motherboard?

yes, you can use a 20 pin power connector on a 24 pin motherboard. it should work fine without that adapter that face to face linked to. just make sure it has the 4 pin square plug for additional juice for the cpu.

What is the 24 pin power connector for?

More Information on the ATX 24 Pin 12V PSU Connector This means that the newer 24 pin power supply is useful for motherboards that require more power, and therefore eliminates the need for ATX 12V power supplies to provide an auxiliary power cable (although some still may).

Why is there a pin missing on my 24 pin connector?

Most likely it is because the -5V rail has been removed from modern power supplies. If your power supply unit has an empty pin on the 24 pin connector (see picture above), then your unit does not have a -5V rail.

Is any power supply compatible with any motherboard?

To answer your original question, yes, a new power supply will probably fit your motherboard. There are two places the PSU plugs int othe motherboard. The first has 20 slots or 24 and the second has 4 or 8. Even my crap brand PSU had extra connectors.

Are all 24 pin connectors the same?

The 24 pin motherboard connector is actually just the 20 pin connector with 4 extra pins added on the end. The original 20 pins were unchanged. The extra 4 pins are not separate rails. They’re just extra lines to provide more current to the same rails.

How do you test a 24 pin power supply?

Locate the 20+4P (24-pin) connector. Bend the paperclip and insert one end into the green pin (PS_ON) and the other into any of the black pins (Ground). Flip the switch at the rear of the PSU, and listen for the internal fan. If you can hear the fan, this should verify the power supply is turned on.