The ALC662 is not a powerful amplifier. If your headphones are quiet:
Includes the Realtek Audio Manager for EQ and jack sensing. 2. Windows Update Esonic H61 Motherboard Audio Driver
The Esonic H61 motherboard is built around the Intel H61 Express chipset, typically supporting 2nd and 3rd Generation Intel Core processors. The audio functionality is usually powered by a Realtek ALC series codec. The driver serves as the instruction set that allows the Windows operating system to communicate with this specific audio chip. Without this software, the hardware remains "silent," unable to manage tasks like: The ALC662 is not a powerful amplifier
The H61 chipset supports two standards: AC'97 (older) and HD Audio (newer). Your computer case may be using a different standard than what the BIOS expects. the hardware remains "silent