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Radeon R9 390 installation - losing picture and bad pool header error
Hello, all :)
I just purchased an MSI Radeon R9 390 8GB to replace my 270x, but I'm having trouble with installation. That is, I've put it in the PCIE x16 slot and connected the power cables from my power supply, but it takes an inordinate time to boot and then I lose picture after a few minutes. With the first few boots, I was able to get to the desktop, but now I lose picture at the Windows 10 loading screen. There are artifacts, random colors, and other distortions present beforehand.
In one instance I encountered an error that said "bad_pool_header."
I checked the HDMI cable to make sure it was plugged in correctly. I also tried reseating the card a few times. It does boot, and the fans start (this card's fans do stop spinning under low load), so I know it's getting power. What could be going wrong?
Any help would be deeply appreciated.