Hi,
I am using ny GA-X58A-UD7 without problem for months. My graphics card, Nvidia GTX 460 , is connected on the PCIe 16X-1 slot. I have two monitors connected. So far all good. Then I needed a third monitor and then bought a second graphics card, Nvidia GeForce 210 and installed it on the PCIe16X-3 slot. But this second card is not detected. To make sure my graphic card is not faulty, I removed the main graphic card and left the second on slot 16X-3. The graphics card is detected. Then I removed my GF 210 and put my GTX 460 and put it on slot 2, still working fine.
So I do not understand what happens when both cards are installed at the same time.
Th GF210 has no external power supply so I wonder if the mother board power supply is enough for both cards.
Any help will be welcomed.
Thanks