hi all, i recently bought a seagate expansion 1tb external harddisk to backup my whole system and format. so when i connceted it to backup my system,it starts a beeping sound. so i searched around the net,and found that my harddisk is not getting enough power. I tried it on friends laptop,its working absolutely fine,tried copying and deleting data both. But sometimes the hard disk on my pc gets detected,but when i try to copy data,it gets disconnected and starts beeping again. is there anysolution to this problem. the hardisk is new,and works on my firends system. my system is given is system spec.