Are you using a cd drive and/or another hdd as well? Usually you do number 2 but that is if you are using another drive(any drive except floppy). If that is your only drive do nuber 1. The pins just pull out. Take your pointer finger's nail and and you thumb nail and clamp down on each side of the jumper. To put one in, sumply push it on. Be careful and if it seems like its not going in smoothly, don't force it, check and make sure it's actually going in.