The only thing missing in your request is this:
1: What your wanting? ie: bios update, drivers, manual, other? You have to specify as we are unable to read your mind.
2: Is this motherboard oem or retail? ie: did it come in an HP pc or was it bought from a motherboard retailer?
If it came in an HP pc, use these links:
http://h10025.www1.hp.com/ewfrf/wc/g...reg_R1002_USEN
or
http://www.elhvb.com/mboards/OEM/HP/index.html
If it's a retail motherboard, please visit any Asus website for support:
http://www.google.com/search?q=Asus%...G=Search&hl=en