i tried and i can't get the solder to stick to the board.... does scraping the old solder off mess things up? cause i did.... also i don't have any flux
Scraping the old solder off could have scraped the copper trace with the solder, solder won't stick to silicon board (not easily!). If you are going to remove solder always heat with an iron to liquid state and use copper ribbon or a solder sucker to clean a contact point.
I would probably solder the leads to the board as mentioned. If they don't stick, tin the wires and re-tin the contact points on the board. Heat just the contact point on the board and then when the solder is liquid, touch the tinned wire to the contact point and let the heat liquify the wire tin. They should stick together and then remove the iron and the points should be joined. The only way I could find the replacement power connector is on another mainboard, you would likely have to remove one from a bad board and then solder it to yours.
As to which one goes where, the wire likely has been bent for so long it should be easy to figure out what wire goes where. It should be in somewhat the correct position naturally.
Edited by zingo156, 09 July 2014 - 10:35 AM.