The "PCG-81114L" number found on the bottom of your laptop is actually a , not the specific model number. To find the correct drivers, look for a model name starting with VPC (e.g., VPCF115FM ) usually located on the bezel of the screen or above the keyboard. 2. Primary Driver Sources
Install Realtek_HD_2.82 . If no sound after install: Sony Vaio Pcg-81114l Drivers Windows 10