Using the standard layout, insert the case connectors onto the corresponding motherboard pins:
If you are still stuck, search for "HP Compaq SG3-350UK Service Manual" – that document contains the official OEM schematic for the Foxconn N15235. Foxconn N15235 Front Panel Connectors - Google
Based on original manufacturer documentation and community collaboration, here is the definitive pinout for the 10-pin FP1 header found on many Foxconn N15235 motherboards. This layout remains consistent across the various board variants. Using the standard layout, insert the case connectors