The lights on your motherboard are used to provide you with information about the power and activity status of your system. A common indicator is an orange light, which can signify a problem with your power supply or a malfunction of your motherboard. To fix an orange light on your motherboard, check to make sure all of your cables are securely connected, and that the power supply is properly plugged in. If this does not work, you may need to check the BIOS settings or try resetting your BIOS altogether. If all else fails, you may need to replace the motherboard itself.