Wonder if I could get some input on this.
Alienware m14x r2
Windows 10 64-bit
unlocked bios a13
gen3 i7 core
16 gigs ram
GTX650m
eGPU
EXP Beast V8.4d dock
Gigabyte GTX970 Extreme gaming edition
430W EVGA PSU
After some tinkering I was able to disable the onboard vid card (GTX650m) with the unlocked BIOS no problem, booted into windows 10 everything worked great, no error 12 nothing. I ran some tests worked fine. I powered down the laptop then booted back up and got 8 beeps on post. this means the LCD is toast, well not quite, powered off my eGPU and power cycled twice laptop booted into windows with no issues. So when I shut down power on my eGPU, power up the laptop, everything turns on then it does the 8 beeps again. Any insight would be greatly appreciated not very many folks hooking eGPU's up to alienware pc's. I am going to test the other modes when I get home to see if that will change anything.
Update:
I tried the different modes and it still would cause the 8 beeps on post. I did the hot swap method with the WLAN card, changed to the beast pro adapter and powered back on from sleep mode, video card was detected and worked like a charm. Is there a mode I need to change in the bios to allow to bypass the internal display and just use an external monitor?