What kind of power supply do I need for a 20 pin motherboard?
Motherboards can come with either a 20 pin main power connector or a 24 pin main power connector. Many power supplies come with a 20+4 cable which is compatible with both 20 and 24 pin motherboards. A 20+4 power cable has two pieces: a 20 pin piece, and a 4 pin piece.
Where are the extra 4 pins on the power supply cable?
The extra 4 pins on the cable just hang over the end of the motherboard connector. The 24 pin cable only fits into a 20 pin socket at one end so you can’t plug it in incorrectly. The extra 4 pins were added to the 24 pin version of the cable to provide one extra wire for ground, 3.3, 5, and 12 volts.
What does the Dorma PS series power supply do?
The PS Series power supplies are high performance with heavy-duty circuitry for inductive loads and multi-door applications. The modular design is built around several different application control modules to meet your specific needs for virtually any electric lock system.
How is the output of a power supply controlled?
The power supply output voltage can be controlled by the main system on/off control relay which accepts a closed dry contact. Individually fused door control modules are available for a variety of applications.
How many pins do you need for an ATX power supply?
Most of today’s motherboards supply their CPU with a separate 12 volt cable, which has 4 pins for ATX style (sometimes called P4) or 8 or more pins for EPS and non-standard high-power systems. Some PSUs may have three or four 12 volt 4-pin connectors. The p/n for a standard P4 is 39-01-2040 or equivalent.
What is the pinout on a computer power supply?
Computer PSU: Calculators: ATX pinout: Computer power supply units (PSU) deliver the power to the PC hardware via a number of cables with connectors. Their generic specifications for various desktop systems are defined in Intel’s design guides, which used to be periodically revised.