"Reboot and Select proper boot device....." NO HARD DRIVE IN SETUP

[nehal_serpa]

When I turned on my computer then I got a black screen with the below message:
"Reboot and Select proper boot device or insert boot media in selected boot device and press a key"

When I went in Bios then there was no hard drive listed under channel devices? The CD/DVD drives are listed properly. I was running Windows XP SP3. Can anyone please help. Thanks

[unidentified]

You might be having a bad hard drive or it could be also possible that it is just a bad or loose data cable. You might have to reseat it again and try if it works.

[nehal_serpa]

So, after disconnecting the cable from the motherboard socket, the little thing broke off. So, I was not able to reconnect it. Now, if I am turning the computer on, then nothing happens at all, there is no power. What have I done wrong?