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Intel nuc 12 enthusiast Arc a770m can’t be recognized no video error code 43

TanukiG
Beginner
1,228 Views
Hello!
I bought a Intel Nuc 12 enthusiast barebone kit - bought the ram and m2 on my own and installed everything without issues, only problem : idk for which reasons, intel arc a770m won’t be recognized, i tried everything, i uninstalled the drivers with ddu, reinstalled, make sure the bios was up to date, nothing worked, idk what to do and I need support to solve that situation, I’m near to return it back
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TanukiG
Beginner
1,227 Views
The igpu (iris XE graphic from the i7-12700h) is working ok, plugged to thunderbolt 4 rear port to a portable display , hdmi and other display ports aren’t working because they are related to the dgpu
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n_scott_pearson
Super User
1,174 Views

If you have the monitor connected to the (rear) HDMI port and power on, do you see the BIOS Splash image (the skull) appear on this screen? If not, can you repeat with the monitor connected to one of the (rear) DP ports? If so, do you see the BIOS Splash image appear then?

If neither case worked, then, with the monitor connected to the (rear) TBT USB-C port, power on/reboot. When the BIOS Splash image appears, press the F2 key over and over until the BIOS Setup main scene appears. If so, from there, try pressing F9 (followed by Y) and then F10 (followed by Y). This will reset and save the BIOS configuration and reboot the NUC. You can then go back and try the original experiments above.

Let me know what this accomplished,

...S

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TanukiG
Beginner
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Tried all what you says :

-rear hdmi and both dp do not give any image even on bios screen
-only rear and front thunderbolt 4 gives me images

-make bios reset solved nothing
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n_scott_pearson
Super User
1,164 Views

Ok, sounds like there is something wrong with the A770m component. I would say that it is time to return it for replacement. If you can do this through the original place of purchase, great. If not, you are going to have to contact Asus regarding replacement.

Sorry this happened,

...S

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WayS
Beginner
903 Views

Been having a similar problem, no error code simply doesn't show anything when I connect the HDMI cable to a 4k monitor, however use the same cable connected to a portable monitor at 1080p and it works fine. No BIOS logo on 4k, only on 1080p screens, it's as if the BIOS has done a reset or changed something after the reboot and is now only allowing output on 1080p, but I can't find anything that would indicate it. Any ideas??

This was a sudden occurrence, nothing changed except a reboot. The same cable worked just fine, even doing a BIOS reset did nothing to fix this. Surely there is a BIOS patch for fixing this.

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skullmonkey
Beginner
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I have very similar even exact issue.

my Intel Serpent Canyon NUC 12 Enthusiast PC model RNUC12SNKi7200U lost video output while watching video on YouTube.

I tried different cables and monitors and it keep loosing signal.

The monitor "see" the pc connected to it but there is no image on it after reboot.

I can hear that the PC is rebooting fine to Windows desktop.

I can boot using the rear usb type-c port thou.

What might be the problem? How to fix it? Is it even possible?

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