I have a desktop PC and all of a sudden it couldn't boot. It would either hang at the Windows loading screen or once logged in immediately freeze. I repairing from a live cd but that froze as well. This led me to believe it is a hardware problem. I opened the case and checked connections and cleaned out the dust.
I have a SSD with the OS installed and an internal hard drive for storage. When I reset the bios to default settings it said it couldn't find an operating system. I went back to the bios and changed things and it booted. I am now able to log in and use the computer.
My question is 1) does it matter which molex power connector you connect to which hard drive? 2) does it matter which sata cable is connected to which drive? I'm not sure if the primary hard drive needs a certain one. Are there any other considerations when adding a second hard drive, I know the BIOS settings need to specify master/slave.