RadeonHD 5850 and old motherboard

wjtk4444

Honorable
Jan 13, 2014
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Today I wanted to change graphic card(From Geforce 8600 to Radeon HD 5850)in my old computer.The problem is that after connection of Radeon to motherboard(Gigabyte GA-K8NF-9) I have no view on the monitor(no reaction). In addition I checked if 5850 works properly in my new computer(Yes, It is). In the old one I've got power supply with 500W. I'd like to know what the problem is. Personally I think motherboard is just to old for that graphic card.

Thank you for your answers.