I had a custom built computer for a few years and it randomly just cut power all of a sudden, my neighbor who has a 4 year degree in computer programming and repair looked at it for me and said it was my hard drive which sounded kind of odd to me but even his buddy who is still working full time as a computer repair technician said that it could be the problem but in short my computer doesn't send signal to my monitor so I cant be sure if it is even booting and I was wondering could a bad hard drive cause this problem? I mean I've had a few hard drives fail on factory computers and still load bios to tell me there's a problem but since the computer is custom built piece by piece would that mean it would communicate with the aftermarket Graphics Card?