Can't switch AW M14x to graphics card because of 8 beeps

I have an Alienware M14x and have recently ran into some trouble. After noticing unusually low fps, I checked device manager and found the error "Windows has stopped this device because it reported problems (Code 43) next to my gtx 765m.

I tried various drivers and windows updates, but nothing worked. Ultimately I removed the device and fully deleted its drivers, but now I am unable to find it in device manager, even if I click show hidden devices. I checked the bios, and it was there. I then hit FN+F5 to try and switch to my graphics card, but after restarting the computer was unable to boot and instead only beeped 8 times. After following online instructions, I disconnected and reconnected the CMOS battery, which changed the 8 beeps to 5 and then allowed me to log in to my computer. According to those instructions I could fix the issue by disabling "non turbo flex support" in the bios, but after trying again with the setting off I still ran into the 8 beep issue. How can I get my laptop off integrated graphics? Thanks.