It connects a power supply to an ATX style motherboard. A power supply with a 24-pin connector can be used on a motherboard with a 20-pin connector by leaving the four additional pins disconnected. However, if you have a 24-pin connection on your motherboard all 24-pins need to be connected.
What voltage are supplied to the motherboard on a 24 pin ATX connector?
12V
ATX 24-Pin 12V Power Connector Pinout (ATX v2. 2)
| Pinout Reference for ATX 24-pin 12V Power Connectors | ||
|---|---|---|
| 1 | +3.3V | +3.3 VDC |
| 2 | +3.3V | +3.3 VDC |
| 3 | COM | Ground |
| 4 | +5V | +5 VDC |
Will a 24 pin motherboard work with a 20 pin PSU?
“… you can plug a 20 pin cable into a 24 pin motherboard and it will work just fine. At least, it will for a while. They added those extra 4 pins for a reason. When you plug a 20 pin cable into a 24 pin connector you’re not providing the extra current carrying capacity which may be needed by the motherboard.
How do you hook up a 24 pin power supply to a 20 pin motherboard?
You can plug the 24-pin connector into the 20-pin motherboard connection without detaching or moving the additional 4 pins. It will be a tight fit and require a small bit of force to make the connector fit in place correctly.
Does it matter which way you plug in your 24 pin connector?
Honorable. No you cannot insert the 24 pin connector in the wrong way. The covers for some single pins are shaped according the motherboard port, so it can only go in one way.
How do I use Add2PSU?
To use the Add2PSU you just plug in the 20 or 24-pin ATX connector from the new power supply onto this board and then a 4-pin Molex connector from the existing power supply. When the relay detects power it allows the second power supply unit to turn on instantly.
How many pins does the ATX main power connector have?
The ATX 24-pin power supply connector is the standard motherboard power connector in computers today. The connector itself is a Molex 39-01-2240 connector, often called a Molex Mini-fit Jr. ATX 24-Pin 12V Power Connector Pinout (ATX v2.2)
What CPU power connector to use on a motherboard?
Today, most motherboards possess 4 to 8 pins dedicated to powering up the CPU. The latest standards for power supply make use of an 8-pin connector (sometimes called EPS 12V), made up of 2 x 4-pin blocks, again to ensure compatibility with old motherboards and the classic ATX P4:
What is an ATX style connector?
What is an ATX Style 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.
Is an uATX motherboard a micro ATX?
Micro ATX is a standard introduced in 1997 based on the ATX specification. It is also referred to as uATX, mATX, or µATX. The primary difference of the standard comes from the dimensions of the computer system. The maximum size of a micro ATX motherboard is 244 mm × 244 mm.
