Gigabyte motherboard SEMPRON INSTALL

Take out the motherboard from the packaging. If you have issues, check to see if there is plastic wrap on it still. Unplug everything on the existing motherboard, take it out. If you want to re-use it, use a screwdriver and take out the screws neatly. Otherwise you can use a hammer and smash it into peices and just shake it out of the case. Screw in the new motherboard. At this point, I don't suggest using a hammer. Plug in all the cords you took out, the CPU, etc.. turn on the PC.

If you have a specific issue aside from just general help, some details about it would help.