Augustaronio :
Just got a new Asus radeon 7770 graphics card when I plug it in the cards light is green and the fans on my computer and can spin but the power buttons isn't lit up but it's still use able an d there's no display on my screen please help
Power buttons don't lit up??? Check the 6-pin connectors, people sometimes do forget to plug in 6-pin hence power lights on the card dont come on...
Since I solved many people with typical problems like yours, just switch back into on-board graphics and go into your bios. Check to see an option called "PCI-e adapter" and see what your motherboard switched to. Sometimes removing hardware, your bios will reset the settings, and just change it back to PCI. If that doesn't work, check windows...