problem with gpu signal

[gobitzu_6._.3]

hello recently i upgraded my mobo with a asrock z77 with 16gb ddr3 gskill ripjawsx and after installing new r9 290 gpu i dont receive any signal from my monitor

and my motherboard shows A2 error code 

[LogicalDrm]

-> Moved to Troubleshooting

 

This lacks information. Upgraded what to what? Is the Z77 new mobo? If so, you can check mobo manual what it says about that error code. As for monitor, basic troubleshooting steps. Reseat GPU. Check that all connectors are tight and clipped in. If GPU fan spins and it lights up, it should also show image. Check that you cable to monitor is fully plugged and that monitor has correct input selected. Check with iGPU that cable and/or monitor is working correctly.

[zipspence]

Check all of your plugs, IDE detection error which could mean a whole mess of things. But in short, there could be something not plugged in. 

Another route to go down for this would be a needed BIOS update. If you can get to your Bios screen, update, then see if the computer will get past the A2 error. But easy things first, check all connections.