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How to re-enable APU's iGPU after installing dGPU

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=55062
Printed Date: 05 Feb 2025 at 2:59pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com


Topic: How to re-enable APU's iGPU after installing dGPU
Posted By: Waterman
Subject: How to re-enable APU's iGPU after installing dGPU
Date Posted: 12 Aug 2024 at 8:19pm
I have an ASRock B450M Steel Legend and a Ryzen 5 3400G, with an RTX 3060. After installing the card, my iGPU was disabled. How do I re-enable it so that I can use both gpus in my operating system?



Replies:
Posted By: Waterman
Date Posted: 13 Aug 2024 at 12:57pm
Ok so the relevant option seems to be 'IGFX Multimonitor', but that isn't available in my BIOS. I found a reddit post, and this is what I did: I set my igpu as the primary video adapter. After that my monitor got no signal, so I unplugged the HDMI cable from my GPU and inserted it into my motherboard. Even then my mobo wouldn't output a signal, I don't know what went wrong then, but the 2nd or third time, it did POST. After that I've had no issues (so far) and windows detects both the nvidia card and a microsoft basic display adapter (I think I need to install drivers for the igpu). On linux inxi -G detects both GPUs.



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