Question Gpu wont work with my motherboard

Feb 12, 2022
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Hello
I builded new (old) PC and i have few problems
Most important one is that motherboard wont recognize my gpu (amd hd 545 1gb), I know the gpu is working because i tested it in different pc and it works just fine there.
And for some reason motherboard is working fine with nvidia 8600gt 256mb ddr3, but it wont work with amd hd 545 1gb ddr3, all i can see is black screen, darker than my future, no signal at all
Motherboard is gigabyte EG41MFT-US2H