I am having an issue with this PC not detecting the hard drive. I am wondering if this is part of the problem. I opened the case and these two cables aren't plugged in. I'm not sure if the black one was ever plugged into anything. But it looks like the white one might have become disconnected. Is the white one supposed to be plugged into the 4 pin connection just above it in the picture (which says "Power")? This is the back of the Disc Drive and the HDD is below it. They share the cable and the other white plug in the picture is plugged into the HDD. Thanks for looking.