Open a terminal: applications-accessories-terminal and type "lspci". Post the output, especially the line that says "ethernet controller" or something like that. If you were using a USB adapter you'd type "lsusb". This will tell everyone what chipset HP is using in your machine. For instance, here's the relevant part of mine-not wireless.
Originally Posted by DJ Crossfire
Your wireless sounds like it's built into your machine so it'd be PCI. For viewers' general fund of knowledge Here's the output of my lsusb:
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)
Put that device I.D. into google and you can find out chipset etc.
Bus 002 Device 003: ID 0846:9030 NetGear, Inc.