Can you please make something for R9 290 tri-x 4gb. I can't find any custom bios for this card, main point is that for mining this are good cards but they spend to much electricity. 
Dump the original BIOS with AtiWinFlash for example, then upload it, post a download URL and let me look what I can do.
Here it is
https://drive.google.com/open?id=0BwBSKfw1k3lpTHMyYUlNcTEzbU0
Thanks