Corsair PSU to Dell Motherboard CPU connection?

Post Reply New Topic

My Dell XPS 8300 Motherboard has a twenty something pin block connector just the same as the new Corsair Power Unit I just fitted, so that bit is fine, however, the Dell PSU to Motherboard also has a 4 pin cable labelled P2 that connects to a socket labelled PWR2 whereas the new Corsair PSU has an 8 pin socket labelled CPU that has nowhere to go on my Dell Motherboard.

Any suggestions?

Cheers

Sounds to me like you are talking about the ATX processor power connector. It supplies power direct to the CPU, as I understand it.

It started out as a four pin connector for P4 processors IIRC but nowadays also comes in six and eight pin. If you are really lucky the eight pin connector will come apart, hopefully into two four pin plugs. If you aren't, you will need to buy a PSU with an ATX power connector which accommodates four pin motherboards.

Note that modern PSUs may also have PCI-Express connectors in six and eight pin, they are usually labelled PCI-X or similar. Don't get em mixed up!

G

You dont half look like a friend of mine!

Anyway, the 8 pin block did easily snap in half, does it matter which half I use?
Anyway its all working fine now except that the reason I updated the PSU was to also update my graphics card from a 560ti to a GTX 580.
Trouble is, I am getting no display from it whatsoever, I haven't done anything with the drivers yet, should the new card at least do something with the previous Nvidia drivers from the 560, or do I have to do something first?

I heard that a lot of people tried putting Nvidia 600 and 700 series cards in their Dell XPS and had the same problem with the bios not recognising the new card, Iam wondering if the same thing is occurring here, or Ive been sold a dodgy card!

Hi Nambo.

I think only one of the plugs will fit in the socket. I think that will be the one with pins with curved sides at opposite corners. Did you get the board to start without it connected?

As to the graphics card, I can't help you much with that one. When you power up the board, does the card show its banner followed by the BIOS startup screen or does the display remain resolutely blank?

Note that the GTX580 needs supplementary power. Modern PSUs may have at least one six- or eight-pin power connector marked "PCI-E" or "PCI-X". Without that power connection it will likely do sweet nothing.

Unfortunately I'm too much of a n00b to be allowed to post live links yet but you can go to www dot geforce dot com and look up the specs for yourself if you like.

Hope this is of some assistance

I get a blank screen, I have the extra power leads connected, I think its either a duff card, or suffering from whats talked about in THIS LINK regarding Dells crap bios.

Sounds like it. A duff card is one thing, otherwise it sounds like you might be needing a new mobo. Good luck

If it's a four-pin connector for power then it should have black and yellow wires going into it, the colors for +12v and ground. I have heard of some graphic cards needing a direct connection to the supply because of their heavy power consumption but I've no idea of the color coding here, have a look at the video card manual.

Get an adapter which changes it from the larger connector you require from eBay / amazon

His PSU should have the right connector, remember these things are keyed so it should be the one that fits. Sounds like the 4/8pin motherboard CPU power connector. And ys, there are also six/eight pin GPU connectors for the extra power to the GPau. All these connectors are yellow 12V wires and black ground.