Omniszero

I have a Aorus RX 580 8GB gpu and It has worked flawlessly for the past 2 weeks or so. I had it connected to my 4k LG TV via HDMI and no issues... until now. While the HDMI was connected, I thought, hey lets add a side display via DVI. So I connected a DVI cable to the DVI port and the display shut down. Black screen, fans are running at 100% and no display. I have tried applying new thermal paste. I have tried all 3 ports on my mobo. Nothing is working. Any help is appreciated. The RGB logo is still working and is colour cycling like usual. The device manager is not detecting the GPU either. i3 8100 cpu z370p-d3 mobo 16 GB RAM DDR4 Aorus RX 580 8GB Corsair 650W PSU

I would but the problem is he doesnt get anything to display on the monitor for 20 mins. Even with all the HDD's disconnected

Hey guys. My brother has the following Msi x97 gaming mobo lga1150 Intel i5 4690k lga1150 GTX 970 gpu 8 gb ddr3 corsair vengeance ram Ultra 750w psu An assortment of laptop hardrives Problem Computer does not post. No bios, no beep. Computer fans run (even the ones connected to the mobo). Then, after 20 minutes, his comp displays the windows login and everything runs 'fine'. The display does not display anything until this time has elapsed. I have removed the gpu, ram, swapped ram with known working ram, inspected and ensured clean cpu sockets, firmly pressed all power connectors in. I've stripped this thing down to just a single stick of ram and cpu and psu, nothing else and still the same issue. Earlier we left it to run, got dinner and came back to it turned off... powered it on and it post and booted up to login in 5 seconds. I realized it was missing his gaming hdd so i plugged it in but while i was josteling the sata to 4pin adapter together before connecting it to the hdd, the computer self restarted and back to this 20 min startup. Guys. I have spent the last 3 hours researching on google, youtube and a plethora of forums. Please help