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Can't boot using gtx 970 after HS update. Intel graphics only

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Joined
Jun 1, 2015
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Motherboard
Gigabyte Z97MX GAMING 5
CPU
i7 4790k
Graphics
intel graphics 4600
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Classic Mac
Mobile Phone
I was able to successfully update my computer to High sierra by unplugging my gtx 970 then using intel graphics. I booted into High sierra successfully using intel graphics and then updated Nvidia web drivers. now i cant boot into high sierra at all when my GPU is plugged in. I can only boot using Integrated graphics. What do I do?

When trying to boot with Nvidia graphics, gets slowly to this screen then just flashes and repeats
 

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Joined
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GA-Z270X-Gaming 5
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i7-7700K Kaby Lake
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STRIX-GTX1060-O6G-GAMING
Same problem
 
Joined
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Gigabyte Z97
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i7-4790K
Graphics
HD 4600
I have same problem with GeForce 210 that i use with a secondary monitor, if the dvi adapter is connected the system stuck at boot in a loop.. if i disconnect the dvi connector from GeForce and use only the HDMI of HD4600 all work fine.
I’ve upgrade directly from App Store and with the old Sierra everything worked properly.
 

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Joined
Jun 13, 2017
Messages
15
Motherboard
GA-Z270X-Gaming 5
CPU
i7-7700K Kaby Lake
Graphics
STRIX-GTX1060-O6G-GAMING
Have you found any help?
No luck. Tried many suggestions from other threads. Hope someone will figure out how to fix this.
Another option is to create usb stick and try clean install. But it's the last case for me.
 
Joined
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GA-Z77-UP5-TH
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3570K @ 4,2
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RX 580
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  1. iOS
Same here with a GTX670

Only way to install HS was with my GTX removed. When I boot on Intel graphics system about this mac shows "monitor 3MB". Can't get the computer to boot with GTX installed. Tried lilu + nvideagraphicsfixup
 
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Joined
Jun 1, 2015
Messages
15
Motherboard
Gigabyte Z97MX GAMING 5
CPU
i7 4790k
Graphics
intel graphics 4600
Mac
Classic Mac
Mobile Phone
Update:

I went into my BIOS settings and disabled Intel graphics. I then plugged my monitor into the GPU and was able to boot successfully into the OS with full graphics acceleration. Now I just have the problem of the lag when booting up. I'm experiencing some kext stall. Here are the screeshots of them.

kextd stall NVDAgl IOresources
 

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Joined
Jun 1, 2015
Messages
15
Motherboard
Gigabyte Z97MX GAMING 5
CPU
i7 4790k
Graphics
intel graphics 4600
Mac
Classic Mac
Mobile Phone
Update:

I went into my BIOS settings and disabled Intel graphics. I then plugged my monitor into the GPU and was able to boot successfully into the OS with full graphics acceleration. Now I just have the problem of the lag when booting up. I'm experiencing some kext stall. Here are the screeshots of them.

kextd stall NVDAgl IOresources
Any ideas on how to get rid of this lag? I've seen in another thread if you get rid of intelgraphicsfixup.kext this will fix it but I don't seem to be using this kext.
 
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