I have a Dell XPS 15 L501X that recently stopped working. It was working fine until the screen went blank (due to inactivity) and when I tried to turn it back on, it wouldn't come to life. I restarted the laptop but got a PXE error asking me to check my cable and that the OS wasn't found. I bought an SSD and put an OS on that and replaced the HDD with the SSD but got the same error. SO it's probably an error with the cable I guess. Is there any way I can fix the cable myself, like if it's only loose or something or maybe even replace it myself? Or is there something else wrong with the laptop?