Have you try cleaning RAMs and GPU? I changed my PSU and it wouldn't boot into bios with a led on the boot. End up just cleaning the connector of each RAM stick and it work like a charm.
this post was submitted on 19 Jun 2023
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Buildapc
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A few things, your CPU is the component which would host the on-board graphics not the motherboard. Intel CPUs that do not have an -F in their model number have on-board graphics (11400 or 11600K for example) so knowing what model you have may clarify this.
I assume that the system is no longer able to POST even with the new graphics card installed? This likely indicates that it is an issue with the motherboard itself potentially having a damaged connection to the GPU (just a guess). It would also be helpful if you have a recording of the beeps to help you confirm the pattern.