Sometimes the operating system is fine, but the motherboard’s BIOS has disabled the front panel sensing.
If a headphone jack has a broken tip stuck inside or physical damage, the system may fail its continuity check. BIOS Defaults: 917-front audio not connected
Older cases used the AC'97 standard. Modern motherboards use HD Audio. While an AC'97 plug fits into an HD Audio header, it will not work correctly and often triggers error 917. Check your case’s cable label. If it says AC'97 and your motherboard supports HD Audio, you have a hardware mismatch. Sometimes the operating system is fine, but the