Before reinstalling Windows, backup existing drivers using:
After a clean Windows 7 install, Device Manager will list an "Unknown Device" with a hardware ID typically ending in SNY5001 . Drivers Sony Vaio Pcg 31311X Windows 7
: Ensure you're downloading drivers from a trusted source. Save the files to an easily accessible location on your computer. Before reinstalling Windows
High Definition Audio drivers are necessary to prevent sound distortion or total loss. Drivers Sony Vaio Pcg 31311X Windows 7
The "PCG-31311X" number on the bottom sticker is a chassis/regulatory number and is not usually the number used for driver downloads.
