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HP Elitebook 8440p Notebook PCs - Audio Output is Through Internal in-built Speakers Only but not Through External Speakers that are Plugged-In | HP® Customer Support
Solved: One 'PCI Simple Communications Controller' isn't being insta... - HP Support Community - 5567586
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HP EliteBook 8440p Notebook PC and HP EliteBook 8440w Mobile Workstation Maintenance and Service Guide
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