I have an old dell dimension and a new Asus motherboard, however the front panel power connector from my old case is so old that they stopped making them like that (it looks almost like a USB connector) Part # 6Y702 DELL. But the more modern day connectors on the motherboard has 2 rows of pins (some missing) on a white backing (I assume you know what this looks like, its in all computers now). I had to first turn my computer on via jumping 2 pins then setting it to AC power on. My question is can I take that covering off the old connector and manually attach the wires to the motherboard, either by old school wrapping them around or maybe a way to keep the part where they plug in? All the right connections are there, its the configuration that is off. If the worst I can do is break the old power connector then please let me know because as of now it is already useless.
Yes you can. You can remove the female pins from the connector by pushing the catch down with a sewing straight pin or paper clip. Want to make this a neat job? A place called FrontX has all the connectors and blank plugs for applications such as yours. I did a old 4600i case up with their supplies. Cost was under $5.00. Link is below, hope it helps.