Question No agent system config on BIOS from P8Z77-V deluxe

Apr 9, 2020
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Hi.
I have the ASUS P8Z77-V Deluxe motherboard and was using it with the Nvdia GTX 680 video card. But today my video card got busted, it started to black out when I tried to play some games and it turned on it's cooler which I think I never heard and then the system crashes and I have to reset it. Anyway, the video card is busted and I tried to remove it and turn on the PC. But the VGA Led is always on the the boot beep helper is so that no video card was detected. I tried to enter the BIOS using the video card and try to see if the System Agent Configuration of GPU was set to the PCI instead of the integrated only to find out that there's not even this option there...
Can anyone help me?