After I install a m.2 nvme device, High Sierra can not recognize my gtx1070.

[thunder951413]

My board is Asus z170a, graphic card is gtx1070, osx 10.13.2. WebDriver-378.10.10.10.25.102.
They worked well until I installed a m.2 nvme device. The graphic driver changed to osx default from web driver.
I checked bios status, gtx1070 pcie speed changed to x8 from x16. and nothing else was useful.
Can anyone give some advice? Thanks a lot!!

 

[BreBo]

@thunder951413, please update your profile (personal details) with your Motherboard or Make/Model, CPU and Graphics Card.

Profiles need to contain at least your primary system to assist others with helping you.

 

[thunder951413]

already updated.

 

[thunder951413]

Anybody can help me? my computer is totally unavailable now.