686040-501, HP System board - Features the Intel QM77 chipset and Intel HD Graphics 4000 with UMA graphics memory - Includes replacement thermal material - For use in models with Windows 8
FOR HP ELITEBOOK 8770W laptop motherboard 688746-001 Intel CPU 100% tested $139.51 - PicClick
688745-001 HP System Board (Motherboard) for EliteBook 8770W Laptop (Refurbished)
Power and Portability for Today and Tomorrow: HP 8770w Mobile Workstation | Windows Experience Blog
HP Elitebook 8570W - is it still good ? Hardware modifications - Custom Builds - NotebookTalk
HP Elitebook 8570W - is it still good ? Hardware modifications - Custom Builds - NotebookTalk