Don't feel bad. I recently burned out my video card in my PC. Bought a new one, read the manual and installed it. Damn thing would not work
. So after reading the book again, I took the PC to the shop where I bought the card and had them look at it. They plugged it in, turned it on and no joy either. So they open it up, look at it and ask me why I didn't hook up the power
Seems the manual is a generic version and for older cards prior to the new ones that need extra power
leads attached. I had put in a new power supply to make sure I had the power but never figured the card had a separate cord to the PS. I just bundled up that cord with all the other wires.