I've purchased and installed a 2nd 1GB of RAM memory module in the laptop. It isn't recognizing it and I go on to read that I need to update the BIOS. I enter BIOS(phoenixBIOS in a HP laptop) and it doesn't allow me to make any changes. How can I tell the computer that there is now 2GB of RAM vs. 1 GB? I got a really good price and don't want to return the memory.