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Power supplies 20+4 and 24 pin connectors question.

K

Kaspian

Golden Member
Are the 20+4 pin connectors power supplies backwards compatible with 20 pin and 24 pin power connector motherboards? So, if I were to order a power supply with the 20+4 pin connector I shouldn't worry about whether the mobo has a 20 or 24 pin main connector................😕

Thanks in advance.
 
A 20+4 pin connector indicates that it has a module connector, the extra 4 pins can be removed so that it fits onto a 20 pin mainboard. The extra 4 pins only provide extra power wires for each of the voltage rails, for modern boards that need it. A 24-pin connector would just indicate it wasn't modular, and you'd have a hard time fitting it onto many mainboards due to other components close to the end of the ATX power connector, but it would still work. There are also adapters that just lengthen the 20 pins so that it's not a problem.
 
Well, there are several different pinouts of 24-pin connectors. Just be sure your mobo uses the most common pinout (EPS12V or sometimes called Dual Xeon or Extended ATX/EATX) and you'll be OK. AFAIK, there is only one pattern of 20-pin ATX connector except for some older Dells.

.bh.
 
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