Okay so I stripped down my buddies Alienware 15 r2, it's older and overheating, fans were completely plugged. Replace the thermal paste and all that jazz. Everything went smoothly but now I'm getting this error upon boot..
Check cable connection!
PXE-M0F: Exiting PXE ROM.
Reboot and select proper boot device...
The thing is, when I go into the "F12 boot options"
and select the hard drive it boots. But the bios doesn't have any options other than Windows boot manager, and a couple NICs for UEFI, and under legacy I've tried all the possible orders lol.. it's only 1 nvme for boot and games and a 1tb HDD for storage.. I think the nvme is listed as a "Diskette Drive" under legacy in bios..
You'd think a 3grand laptop would have a sensible BIOS, negative.