24 pin to 20 pin atx power confusion
Posted 24 February 2007 - 02:12 AM
Posted 24 February 2007 - 07:55 AM
If you cannot pull the 4 pin from the 24 pin connector you can also use an adapter for this.
The 24 pin main power connector was added in ATX12V 2.0 to provide extra power needed by PCI-Express slots. The older 20 pin main power cable only has one 12 volt line. The new 24 pin connector added one line apiece for ground, 3.3, 5, and 12 volts. The extra pins made the 6 pin auxiliary cable unnecessary so most ATX12V 2.x power supplies don't have them. This connector is polarized so it can only be plugged in pointing in the correct direction.
It would probably help if you downloaded the motherboard manual for your MB. With the manual you could find out just what every connection on the MB is used for. Most MB makers have manuals on their websites.
Posted 24 February 2007 - 03:43 PM
Posted 24 February 2007 - 04:19 PM
Edited by stettybet0, 24 February 2007 - 04:20 PM.
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