This header is used for headphone and microphone jacks. It is keyed differently from USB headers to prevent incorrect insertion. How to connect front panel connectors to the motherboard
| Pin | Signal | Pin | Signal | | :--- | :--- | :--- | :--- | | 1 | HD_LED (+) | 2 | Power LED (+) | | 3 | HD_LED (-) | 4 | Power LED (-) | | 5 | Reset Switch (+) | 6 | Power Switch (+) | | 7 | Reset Switch (-) | 8 | Power Switch (-) | | 9 | Key (No Pin) | 10 | Empty / Key | Foxconn N15235 Front Panel Connectors - Google
: Located on Pins 2 (+) and 4 (-) . Like the HDD LED, polarity matters for this light to indicate the system is on. This header is used for headphone and microphone jacks
If you don’t have the specific OEM manual (HP/Compaq rarely included one with the retail box), hooking up the Power SW, Reset SW, HDD LED, and Power LED becomes a frustrating game of guesswork. Let’s solve that right now. Like the HDD LED, polarity matters for this
On the Foxconn N15235 motherboard, the front panel connections are grouped into a single header block usually labeled or simply F_PANEL .