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I noticed when I looked up your desktop board support page at http://www.intel.com/p/en_US/support/highlights/dsktpboards/db-dx58so2 that a new BIOS is available. Have you tried updating your BIOS? I do not know if the BIOS update will help you or not, because I am not familiar with the desktop boards. However, a BIOS update is one of the things I try if I have issues with my computers.
I hope this helps.
Thank you for this information ...
I wanted to try the update the bios but the intel download center seemed down yesterday ...
This seems restored I will try today ...
Here, after the update the bios, nothing has changed ....
My problem persists!
I noticed that in device manager, after startup, the first card (PCIe_x1_1) is not present but the second (PCIe_x1_2) is present. If I did a search of material plug & play, first appears in the list! The cards are the company UDP Technologies HP4000EX This is the model they can run two cards in the same machine and the driver version is 18.104.22.168!
When I open the video management software, neither card is found by him! But if I remove the card from the first PCIe_x1_1, the second appears in the soft!
I need to find a solution quickly and I thank all those who can help me.