thats true but i could find every bios name i needed in the google docs and then dl it from google drive 
Derp, thanks! I've tried a few different ones but none have really netted any increases in hashrate. They all flashed just fine, though! Hello again. 
Here is my .sh script to set the gpu clocks: The first GPU is r9 270 and the others are r9 280x.
Wow, those are some impressive numbers, thanks for sharing. I'm running a HIS 7970 IceQ (Hynix), a Sapphire 280x DualX (Elpida), and a PowerColor 7950 (Elpida) and have scoured the boards for a ZEC-optimized BIOS for each but have been utterly unsuccessful. Will keep trying, though!Here is my .sh script to set the gpu clocks: The first GPU is r9 270 and the others are r9 280x.
For the ZEC mining, you do not need the special bios for 7970. There is very little difference.