Besides the HP dv6000 series being the most popular model of Pavilion laptops, it also is the most confusing model when trying to replace it's laptop motherboard. Most recently I just finished putting back together a dv6500 after replacing the notebook systemboard. We used part number 460900-001 since that was the PC main board currently in the computer.
460900-001 has the following specifications - "System board (motherboard) for Pavilion dv6000 series - Full-featured (UMA) with integrated Realtek (RT8201CL) NIC".
HP DV6500 6600 ~ 6900 Motherboard 460900-001 upgrade 446476-001
Sale Price: $109.00 on eBay.com
I have this laptop motherboard in hand and can see from the part that it use's a Intel 965GM chipset with mPGA478MN socket CPU's and uses a on-board nVIDIA GeForce 8400M GS video card. Other features include one HDMI port, three USB connections, one VGA output and a 5-in-1 SD media card reader.
You will need hp part no. 460900-001 if you own a HP Pavilion dv6000, dv6500, dv6600 or dv6700 series model notebooks ONLY (no exceptions) that require a Intel 965GM chipset and mPGA478MN socket processor.
Hopefully this was able to help clarify any questions you may of had on your hp pavilion dv6000 series laptop in regards to it's PC logic board. If you have any questions regarding this computer part or laptop motherboards in general, please leave a comment and I will reply.
UPDATED INFORMATION 6/12/2011 - I have gotten a few questions on a particular HP dv6000 model which is the "HP PAVILION DV6646US NOTEBOOK PC" and that specific laptop notebook requires motherboard part number 449903-001 which HP show's as the "System board (motherboard) for Pavilion dv6000 series - Full-featured (UMA) with integrated Realtek (RT8201CL) NIC".
I hope this prevents any further confusion and as always, just contact me and I will help you find what you need. Enjoy the great day everyone.