Great news NameTaken. I think I won't throw them away! 
What makes you made the biggest jump in khash/sec, the new bios or optimized script?
Would you mind tell me what is your bios and your miner settings?
What makes you made the biggest jump in khash/sec, the new bios or optimized script?Would you mind tell me what is your bios and your miner settings?
The biggest increase was probably from overclocking the BIOS. The hashrate decreased if the core got over 1070MHz so 1065MHz was the sweet spot. The optimized files can also increase the hashrate by 10-20KH/s.
My config is the standard. "-I 13 -g 2 -w 256 --thread-concurrency 8192", in conjunction with this.
http://www.reddit.com/r/dogemining/comments/1uj4uk/optimized_scrypt_kernel_for_hd7970_r9_280x/
I actually ordered 3 more 11221-00-20Gs.
http://oi59.tinypic.com/20gk8ir.jpg
