Hi, when i turn on my pc, i see the power light come on but the it seems to lose power. I then tried again and this time i hear a beep, short silence then beep again until i turn it off. I try again, get to the window splash sign then it no power. I tried again and it booted to my desktop. I have to go through various stages of this until i get to my desktop. Any ideas if this is the power supply or hard drive?