I have this laptop that won't boot up. It just goes to a black screen. I assumed it was a hard-drive issue but I've also tried a bootable CD and bootable USB and both do the same thing. I am able to get into the BIOS settings so I know the boot sequence has CD and USB before hard-drive. I should be able to boot to CD even if the hard-drive is totally fried right? In the BIOS I don't see anything about the hard-drive. Don't they usually have something that shows what drive it will try to use? Any thing else I should look for? Oh, there is a memory test in the BIOS menu that I ran and it passed.