AMD radeon r9 280x 3GB not working

[danun99]

Title says it all.

I have an asus z270a motherboard, running windows 7 64bit
The GPU is installed on the motherboard, LED's are on, fans are spinning. The hardware is detected in the device manager as AMD Radeon r9 200 series, but I can't get an image between the graphics card and my monitor. Currently, I have an HDMI plugged into my monitor. I've tried installing drivers and uninstalling many times, many different kinds of drivers. The GPU is NOT detected in DxDiag, or AMD Catalyst.

 

[cin19]

1) Try the 280x in other pcie slot.
2) Test the 280x in other PC, if you can.
3) What PSU do you have? maybe the PSU can't handle the 280x.

 

[danun99]

Thanks for the advice! I unplugged some fans, ram, etc. Stopped over clocking, and sure enough it worked. I guess I should get a better power supply