power button

I know there are other posts relating to no video output with something having to do with the motherboard however, none of these have been caused by the problem I have. My problem is my power button connectors. I recently took my Dell Inspiron 3847 apart completely and installed it into a new...

I have dell vostro with windows 7 in it. Actually it's battery become dud and when I put charger in it only monitor screen lights up automatically , but no power to fan or motherboard. I tried dead reset by removing bios cell and pressing power button to release built in charge too, but no gain...