This post is coming from a service technician who just replaced 2 Dell laptops with new hard drives (Win 7x64). The model number on these machines are Inspiron n5110 and n4030. After installing the latest audio drivers (IDT), I realized both of them do not work. The services are set to automatic, device manager shows them working, they are not muted, and when I click the sound icon I see the volume bar jumping around. If I plug them into external speakers, both work fine. I tried un-installing the drivers and letting windows find their own, same problem. Any suggestions?
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