LOL, this is funny: Most AMD boards now require a "P4" power supply.
The deal is, Intel first required an additional power connector for their CPU voltage regulator. This connector is usually called "ATX 12v". It has 4 pins, and it's square.
Since Intel was the first to require it, and it was originally released for P4 motherboards, companies used to call those power supplies "P4 compatable".
But AMD boards have been using it for quite a while too. And the newer power supplies also work with older boards, you don't have to use the ATX12v connector unless your board requires it.
So calling it a P4 power supply simply means the suplier is behind the times in their terminology, these types of power supplies actually work with any ATX powered board.
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