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Hi, I have a HP 400 G9 tower and needed to downgrade CPU from i5-13500 to i3-12100f for some reason. Now, i3-12100f is without integrated graphics, so I added a working graphics card after updating bios to latest version (it clearly states support for intel 12th gen processors). 

All I'm getting is error code (3 long red, 3 short white) indicating a possible memory error, but it's working fine with same ram and i5-13500.

Why is this happening and how can I fix it (or HP with some new fixed bios version)?

Thanks 

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