Hookup External Harddrive To Plasma Tv After Wiping You Hard Drive Clean Do You Need To Install A Bios?

After wiping you hard drive clean do you need to install a bios? - hookup external harddrive to plasma tv

I have an HP Pavilion a320n with a gbhd ram Athlon 2800 + 512 120. I stopped working, so will not boot. There was also a large amount of virus so that only the format of diving with an external USB-IDE. Well, I'm not sure which is the beginning, because there is no video signal. How can a video signal? Is this a bad hard drive, motherboard, something else? Is there a step I forgot to reset something? It has a drive A: 3.5 I try a boot floppy? Help!