Sorry for mistakes, English is not my native language. So I bought my new PC, and I connected the chassis fans to the motherboard, but they are not working. The case is Thermaltake Divider 170 TG ARGB. I tried connecting them to both CHA_FAN 2 and CHA_FAN 1. Maybe it's because the lighting cannot be connected, because it requires the 3-pin add_header connection, but I have only the 4 pin rgb_header connection. In BIOS, it says N/A near the CHA_FAN and CHA_FAN 2 indicators.