[justenhansen]

Hello, and thanks for your support. I just bought a used Compaq Presario with Sempron 3000. It only had a 250W power supply so I bought a new one (600W because it was the same price as any other one). The big 10 pin connector entitled atxpwr1 fits on the motherboard, but the small square four pin connector doesn't fit. There are two rounded edges that are suppose to be on the top-right and bottom-left, but are on the top-left and bottom-right on the motherboard. The old power supply's fit. I also looked at my other computer's A7n8x-x motherboard and it's powersupply would fit it, but there is no connector for it on that motherboard.
Does anybody know what that little four pin connector is suppose to do? And do I need to worry about it?
Thanks, Justen

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4 pin gives additional power to the cpu you know if you turn the plug around wont it fit.

[warriorscot]

4 pin gives additional power to the cpu you know if you turn the plug around wont it fit.

[justenhansen]

It won't fit because two of the pins have rounded ends so they only go in one way. Do you think this is a manufacturers defect?

[-=blaster=-]

I think the square four-pin connector is a Pentium thing. But if you disconnected the four-pin from the motherboard I would think you would have to reconnect it. It's an HP so who knows?

Defect, it is possible.

If you have l33t connector skillz you may be able to swap/modify it. As long as the voltages are the same.