I have just bought a rx 480 - I am using a ga-78lmt-usb3 motherboard - it's a legacy bios. Do I need a motherboard with UEFI bios as the system will not start with the 6 pin power plugged in? I've only just bout the board and a 750w supply.
Not sure if it helps but these people are using that combo OK
I Built a $550 VR PC! But Can it Perform? ft. RX 480 - YouTube
Along with some other people according to Google.
Thanks Pete, I do remember seeing this you youtube vid when I decided to buy the rx 480. I guess it could be a bad card as I'm now running my machine with my old card 9600gt and the pcie slot is working ok. I think I'll have to call the place where I bought the card as I don't have another machine to test it on.
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