Their latest standard is psu design guide rev 1 31 released on april 2013.
Power supply cable connectors.
20 4 pin atx.
A 20 pin piece and a 4 pin piece.
Computer power supply units psu deliver the power to the pc hardware via a number of cables with connectors.
Many power supplies come with a 20 4 cable which is compatible with both 20 and 24 pin motherboards.
Here is a quick guide that will help you to identify the different types of connectors of your pc s power supply.
Motherboards can come with either a 20 pin main power connector or a 24 pin main power connector.
Identifying the power supply connectors in a pc.
Graphics card 6 pin and 8 pin connectors explained.
Connectors really do get hot if you overload them so the safest thing to do is use a real 24 pin power supply on a motherboard with a 24 pin connector.
Buy adapters or power converter cables for 6 pin pci e and 8 pin pci e connectors.
A graphics card with one 8 pin power connector can get maximum of 225w of power 75w from pci express x16 slot and 150w.
Note that your 24 pin machine may work fine with a 20 pin power supply until you add a pci express card later on down the road.
An atx power supply provides a number of peripheral power connectors and in modern systems two connectors for the motherboard.
Atx 20 4 pin main power cable connector.
And while a power supply looks like a big mess of cables to the untrained eye there s only a few types of pc power connectors that you ll need to know when connecting a power supply.
Pc power supply cables contain vital connectors for your computer.
Old power supply unit or simply lacking the required number of sata power connectors.
Their generic specifications for various desktop systems are defined in intel s design guides which used to be periodically revised.
Use the 2x molex to 1x pci e 6 pin adapter.
20 pin molex 39 29 9202 at the motherboard.
Need another pci 6 pin cable to power your graphics card.
A 20 4 power cable has two pieces.
Use a molex to sata connector to power your latest hard disk drive.
There are many connectors and identifying them can be difficult especially for a novice.
Since sata and molex power connectors do not have clips be sure to insert them firmly so that they won t come loose or get disconnected.
An 8 pin or 4 4 pin auxiliary connector providing additional power to the cpu and a main 24 pin power supply connector an extension of the original 20 pin version.