how much i cost new motherbord for hp dv9310us

Yes you can replace the system board on the laptop even though I have never personally done this and from what I understand it isn't an easy thing to do because of how small a laptop is compared to a normal desktop also you could send it in to HP to do it for you they might charge you $300 for a new motherboard and the laptop will be unavailable for a few weeks as it will most likely sit for a while in a work order line. Here is a website that looks to be selling what you will need to do it yourself. http://www.pelltechnology.com/HP/Laptop/HP-Pavilion-DV9000-Series-DV9300-dv9310us-C2746.asp