05-19-2014 10:27 AM
Hi rb1950, and welcome to the HP Forums!
I understand that you would like the 'How to' information on changing your single band wireless card for a dual band wireless card. To better guide you, could you please tell me the model number of your computer and the operating system that is running on it. Here are some guides for How Do I Find My Model Number or Product Number? and for Which Windows operating system am I running?.
Please let me know and I will try my best to find the information you need.
Thank you and have a great day!