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Fatal1ty Z370 Gaming-ITX/ac GPU not detected
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Xaltar View Drop Down
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Joined: 16 May 2015
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Points: 5400 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Topic: Fatal1ty Z370 Gaming-ITX/ac GPU not detected
    Posted: 18 Sep 2019 at 2:16am
Thanks for sharing your fix Temnis

Edited by Xaltar - 18 Sep 2019 at 2:16am
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Temnis View Drop Down
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Points: 7 		Post Options Post Options   Thanks (1) Thanks(1)   Quote Temnis Quote  Post ReplyReply Direct Link To This Post Posted: 18 Sep 2019 at 12:57am
I got it finally working again! It is definitly a BIOS-Bug.

If there is a M2 SSD (PCIe) connected and a GPU connected (PCIe) and you do a CMOS Reset, you will get a Black Screen. The integrated GPU of the CPU will also be disabled,(because that is the default behavior after a CMOS Reset if the Mainboard detects a dedicated GPU. So the Mainboard seems to detect the dedicated GPU. But all the display ports deliver no signal.

Now if you shut down your system, disconnect the power cable, remove the M2 SSD, press the CMOS Button and start the system again it will run for a few seconds and restart. After that you will get a signal from your dedicated GPU and you can press F2 to get into the BIOS.

Now shut down your system again and reinsert the M2 SSD. Now your system should start without problems using the dedicated GPU.

TLDR:
  1. Remove M2 SSD
  2. Dissconnect Power
  3. Press CMOS Reset
  4. Reconnect Power
  5. Start the system
  6. The system should run a few seconds and restart
  7. Now you should be able to get a video signal from your dedicated gpu
  8. Disconnect Power
  9. Insert M2 SSD
  10. Reconnect Power
  11. You system should work properly again


Hope this helps the next guy having this problem.
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Temnis View Drop Down
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Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Temnis Quote  Post ReplyReply Direct Link To This Post Posted: 13 Sep 2019 at 3:34am
I asked the ASRock Support. Maybe they have an idea how to fix this.
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Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Temnis Quote  Post ReplyReply Direct Link To This Post Posted: 12 Sep 2019 at 3:52am
RAM is a G.Skill RipJaws V kit.
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Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Temnis Quote  Post ReplyReply Direct Link To This Post Posted: 12 Sep 2019 at 3:45am
Let's try it with more details. This is my system:

Mainboard: Fatal1ty Z370 Gaming-ITX/ac with V4.10 BIOS
CPU: Intel Core i5-8600K CPU @ 3.60GHz
RAM: DDR4-3200 8Gx2 Kit (F4-3200C16D-16GVKB CL16-18-18-38 1.35v Intel XMP 2.0 Ready)
GPU: ZOTAC GeForceç°§ GTX 1080 Founders Edition connected via Riser Cable
SSD M2: Samsung SSD 960 EVO 250GB
SSD SATA3_1: Samsung SSD 860 EVO 1TB
SSD SATA3_2: Samsung SSD 840 EVO 250GB
PSU: 700 Watt Silverstone SST-SX700-LPT Modular 80+ Platinum
Case: Phanteks Enthoo Evolv Shift X
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Temnis View Drop Down
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Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Temnis Quote  Post ReplyReply Direct Link To This Post Posted: 12 Sep 2019 at 2:50am
Thank you for the suggestion!

I tried both options. 8x8 and 8x4x4. Sadly no success. :-(
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Coool View Drop Down
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Points: 26 		Post Options Post Options   Thanks (1) Thanks(1)   Quote Coool Quote  Post ReplyReply Direct Link To This Post Posted: 10 Sep 2019 at 3:18pm
Temnis, have you tried setting Riser Card Support - Enable option in UEFI.
[URL=http://forum.asrock.com/forum_posts.asp?TID=12080&PID=66534#66534]Riser Card Support[/URL]
[URL=http://forum.asrock.com/forum_posts.asp?TID=3211]ASRock Rack EP2C602-4L/D16 Support[/URL]
[URL=http://forum.asrock.com/forum_posts.asp?TID=12080] ASRock Fatal1ty Z370 Gaming-ITX/ac Support[/URL]
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Points: 7 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Temnis Quote  Post ReplyReply Direct Link To This Post Posted: 10 Sep 2019 at 5:18am
I have the exact same issue. I had it in the past and was able to solve it with the above mentioned method of unplugging the M2 NVMe SSD. After starting the System without the M2 SSD, the GPU was detected (NVIDIA GTX 1080). After that I reinserted the M2 SSD and the System kept running for about a year. Today I have the same issue, but the before mentioned solution is not working anymore.

Any news on this bug? I have updated to the latest Firmware already.

I am pretty sure, that the problem is the detection of the M2 SSD as PCIe Device 0 instead of the GPU. Is there a way to manually set this option?
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I had this exact same problem. I installed a GTX 1080Ti into my Z370 Gaming-ITX board and I could not get windows to detect the PCI GPU.  I tried every combination possible to fix it, I even tried other PSUs, and GPUs.  In the end, all it took to fix it was a single BIOS reset by holding down the CMOS button on the back of the IO panel.    If I had known this, it could have saved me 4-5 hours of troubleshooting.

TLDR:  use the CMOS reset before trying other hardware fixes.  You won't lose your saved BIOS settings.

I created an account just to share this.


Edited by valkeriefire - 10 Sep 2018 at 10:48pm
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Points: 12 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Eigua Quote  Post ReplyReply Direct Link To This Post Posted: 04 Feb 2018 at 5:59am
Very strange. I disconnected the M.2 SSD and the graphics card started working. I then re-connected it and it still works. I cannot explain it.
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