I never had an issue like this occur before, i have my m.2 960 pro attached to a PCIe adapter from Asus for a few months now but i noticed today when i turned on my pc that i couldn't get past the splash screen. once i removed the M.2 PCIe adapter i was able to pass the splash screen just fine. Any reasons why this is happening?
Adapter: https://www.amazon.com/Asus-Accessory-32Gbit-flexibility-Retail/dp/B017YUCAXS/ref=sr_1_6?ie=UTF8&qid=1490933777&sr=8-6&keywords=asus+pcie+adapter
Adapter: https://www.amazon.com/Asus-Accessory-32Gbit-flexibility-Retail/dp/B017YUCAXS/ref=sr_1_6?ie=UTF8&qid=1490933777&sr=8-6&keywords=asus+pcie+adapter