...order to receive wireless, the mini PCI lan or PCI networ connection OK I have an HP pavilion ze4600 I want a wireless card (inside) not exernal, and I found the mini PCI door. BUt know Iam confused by the mini pci LAN (wlan) and the PCI netwrking connection card, which should I use to receive internet signal? whatis the difference? is the internal card better than the external?. ...please help as I want to improve the system of my computer! also I want to change the RAM memory and some sites says it uses the 2700 one and others the 2100 one! I openes the computer and it says 2700 BUT almost all sites say it uses the 2100 one PLEASE HELP !