PN# 39-01-2240 or equivalent" - another, different, "Molex" power connector. Note also that the main 24-pin power connector (§ 4.2.1) is specified as "Molex* Housing: 24 Pin Molex Mini-Fit Jr. Note that AMP and Molex are two different manufacturers, and those are just part numbers.
The ATX power supply specification actually refers (§ 4.2.2) to them as a " peripheral connector", specified as "AMP* 1-480424-0 or Molex* 15-24-4048 or equivalent".
Your first pictured connector is actually a PATA/IDE ribbon data cable. Despite the different names, they are the same thing. Therefore, a power connector referred to as a "PATA" or "IDE" power connector is likely to be a "Molex 4-pin power connector" or "peripheral power connector" and looks like your latter pictures. It was most commonly used with pre-SATA hard drives, which are nowadays referred to as PATA (previously called IDE) drives. The 4-pin power connector that is commonly called a "Molex connector" is really more a general purpose peripheral power connector that delivers 12 V and 5 V power. Including the main 24-pin ATX motherboard power connector! And companies other than Molex also make the connector you know as a "Molex connector", notably AMP but also many unbranded/generic ones are also available. Of course be very careful when modifying several hundred watt power supply wiring and test everything on the bench before plugging in your devices and components."Molex connector" is actually a rather imprecise term, since the Molex company makes many, many different connectors. Otherwise if you connect two earth grounded supplies, there is a decent possibility of sparks. Probably also important to use an ungrounded plug for the small supply since I bet the main PSU is already grounded(earth ground). Just take an extra connector, cut the 12V wire and feed it from the new supply connect ground(0V) to your PSU ground(0V) so the PWM and fan speed signals won't get confused. The important thing is then to connect ground but create a separate 12V rail just for the pump and lights and not let that reverse feed your main PSU. I see, that the pump goes to 24 watt, depending on your LED setup you might get away with using something like a 50W 12Vdc regulated supply. That would be for you to experiment with.
Molex connector power supply full#
It may go full power turbo on you or go off entirely.
I'm not sure what the behavior of your pump is when there's no PWM signal on the fan header while the computer is powered off. Have you considered using a small dedicated 12V supply to power the pump and lights?
24-pin ATX12V 2.x power supply connector. In October 1963, AMP (now TE Connectivity).
Molex connector power supply Pc#
It is because I want to keep my liquid cooling loop, as well as some LED lights, on as a showcase, even after my PC shutdown. Molex Disk Drive Power Connection System tool and connectors. Please give me some directions to proceed. These options are: You can purchase an additional PSU that has a larger quantity of SATA power connections You can purchase a SATA to Molex power adapter cable.
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