Using a 20+4 pin connector on a 24 pin motherboard

  Danny Barnard 19:00 21 May 2009

Hi I'm building a system at the moment and I'm deciding on a motherboard. I've chosen one that's ticked all my boxes and looks very good nForce 750i SLI 775 ATX Motherboard (it's conservative but what it has is good). It needs a 24 pin power connector and the PSU I'm going for has a 20+4 connector. I've read around and it seems you can plug a 20+4 pin into a 24 pin, is it disadvantageous doing this or dangerous? Or do I need an adapter?

Cheers Danny

  MAT ALAN 19:05 21 May 2009

If the cables from your PSU offer the options 20+4 then that is normal and SAFE....

no need for an adapter, in a sense the 4 pin bit IS the adapter...

  Totally-braindead 19:10 21 May 2009

As MAT ALAN says, the only reason power supplies come with a 20+4 connector is so that it can be used with all motherboards regardless of whether it needs a 20 pin or a 24 pin power supply connector.

If the power supply manufacturers didn't do this then they would need to supply 2 different power supplies, one with 20 pin and one with 24. This way they only have to make one power supply with one connector that can do either motherboard.

No advantage or disadvantage and yes its safe.

  Danny Barnard 19:32 21 May 2009



  MAT ALAN 19:42 21 May 2009

Nice one T-B nuver happy bunny!!!

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