DC jack harness for a DV7-2278ca

The DC jack harness on my laptop had two plugs. one on the top of the board and the other with two wires plugged in right underneath the six wire plug. The new board only has the top six wire plug available. I have no where to plug the two wire plug in. I looked online and the DC jack harness for the DV7-2278ca only has the one six wire plug. Why did my old board have the two plug DC jack harness. Now the power led comes on and it tries to read the hard drive as the hard drive led blinks for a bit then it does nothing and the charge led does not come on. The hard drive works as I tried it in another laptop and it works. Now I don`t know if  I have the wrong motherboard (part number 578129-001)or the DC jack harness is the wrong one.
Fred

I spoke with a local electronics store tech a while back and he said he has repaired lots of notebooks by soldering the wires right to the motherboard. I know on Dells its not possible due to there proprietary plugs, but it may be worthwhile investigating in your case since there is no warranty.

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