i just installed a new cpu, motherboard, and 8gb ram and the computer wouldn't boot up. So i hooked up the original parts and tried to install the drivers for the new motheboard.I turned off the computer and put the new parts in. Nothing worked so I plugged the original parts in and i got a black screen with a blinking white line in the top left corner. I also ran a diagnostic and it gave me an error code on the hdd that said BIOHD 3. Please respond quickly!