However, if the ???Fixed??? hard disk(s), including ???Fixed??? ???System??? hard disk(s) is/are separately powered by another separate internal power supply or by an external power supply not supplying power to the motherboard and other devices, and if these hard disk(s) are only connected to the motherboard through data cable(s), it is safe to ???Hot-Swap???, ???Warm-Swap???, ???Cool-Swap??? and