Help! HP M9040N Update to Asus Bios with Overclock

[zebra]

HP blocked the overclock selection for the Q6600 Core 2. Need help to get the Manufacturer version. The bios is AMI v02.61 HP OEM bios version 5.13. Also, after update, I still want to keep the HP Model number, Product number and build ID information on bios. Is anyone know where to edit these information in bios ( in OEM bios, these information are greyed out, I don't know it's in the bios or on chip in motherboard). Any help will be appreciated.