Question SOLVED - Gigabyte z390 UD Can't use dedicated GPU HDMI out as initial display

Sep 8, 2022
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Hello, I'm using a AMD RX480 on a Gigabyte z390 UD and I can't use the GPU HDMI out as initial display, only the intel integrated graphics output seems to work. Once I turn the pc on I can connect the AMD HDMI out and it works, the problem is at boot. Do you know how to fix this?

Thanks in advance
Kim

Update: Problem is solved: I flashed the correct BIOS to the GPU and now everything works fine, apparently the person I bought it from had made some tweaks
 
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Hello, I'm using a AMD RX480 on a Gigabyte z390 UD and I can't use the GPU HDMI out as initial display, only the intel integrated graphics output seems to work. Once I turn the pc on I can connect the AMD HDMI out and it works, the problem is at boot. Do you know how to fix this?

Thanks in advance
Kim
Check in BIOS, there should be a setting to chose IGPU or PCIe as default.
 

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