4 PIN MOLEX CONNECTOR PINOUT HOW TO
4 PIN MOLEX CONNECTOR PINOUT PC
4 PIN MOLEX CONNECTOR PINOUT PLUS
4 PIN MOLEX CONNECTOR PINOUT PS2

Re-use and/or extend your molex connectorsīEFORE you post a comment:You are welcome to comment for corrections and suggestions on this page.

4 PIN MOLEX CONNECTOR PINOUT HOW TO

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4 PIN MOLEX CONNECTOR PINOUT PC

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4 PIN MOLEX CONNECTOR PINOUT PS2

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It is physically polarized to avoid errors in connection.

4 PIN MOLEX CONNECTOR PINOUT PLUS

It has all the features that the old 20-pins had, plus a ground, a +5V, a +12V and a +3.3V power supply line. So, these two connectors jointed together to perform the new 24-pins connector. If more power was required, most power supplies had an extra 4-pins connector for this. Until now, the motherboard was powered with an 20 pins connector. and these connectors could be jointed into one 24-pins connector! +5V could be delivered to the motherboard even when the computer was turned off The keys of this connector were re-designed and thus it could not be entered the wrong way.

The 20pins ATX power supply connector (1992) had better keys to polarize and 3 brand new features!ĭuring the year 1995, the new ATX standard was introduced with 20 pins connectors and 3 brand new lines: the 3.3 volts power supply cable, the sleep power supply that has +5 volts even when the PC was off, and the Power On cable that can turn on the power supply from a motherboard command and not only from the hardware switch. This article will line up these connectors and the pinout configuration shall be given, for those who just want to know, or those who thinks of moding the case a little bit. Today, computers have numerous molex connectors inside. In 1953, Molex introduced the first connector, called '686 Plug'. The company produced flower pots, toys, salt tablet dispensers, clock cases, and insulators out of this material. The material was developed by Frederick August Krehbiel, and in 1938 he founded the Molex Products Company. What is a Molex connector? Or better, what is a 'Molex'? The Molex is a kind of plastic that was invented by a company named 'Molex' in the 1930s. Searching inside my museum, i found almost all these connectors to demonstrate. The power to computer devices, is delivered through cables that are connected using the 'Molex' connectors. But frankly, i call it 'Museum'.Īll devices needs of power to operate. Good news is as more and more PCIe capable power supplies are sold it likely is less and less of an issue.įor the record I hate when companies use nonstandard wiring.Some call this 'junk closet'. That isn't exactly optimal either but I would rather have lower load on the PCIe leads and more importantly the traces on video card connector. That means the amperage on each of the 6pin connectors is <2.1A but one MOLEX is pulling 4.2A while the other is pulling 2.1A.

So while the middle connector above it is connected it is done by connecting two pins to a single molex pin. Dual molex gives you 4x grounds but only 2x 12V. I guess looking at it further there really is no good way to connect 6pin to dual molex. Here is an example of a different way to connect them: Why they hell they allowed that I don't know but I assume if the standard allows it then all components must be rated/tested to handle up to 3.125A per line. However that increases the amperage on remaining two wires to 3.125A (max). It looks like the 6pin connector does allow the middle connector to be unconnected.

4 pin molex connector pinout