Quote from: iCrazyNoob on February 26, 2014, 10:08:12 PM

Quote from: Joshwaa on February 26, 2014, 08:31:49 PM

I have this card PowerColor AX7970 3GBD5-M2DHG. Could some one please tell me the correct BIOS to flash to get in the 650 to 700khash area. I currently get 585khash/s on all 10 cards with 1090/1500/1.111v
Cgminer -g 2 -I 13 --thread-concurrency 8192. If someone can tell me the correct BIOS I am willing to offer a bounty in BTC or DOGE. Thanks.

I have 3 of the exact same cards. Just got them yesterday to begin my mining rig. So far I have only 1 card running as my motherboard is yet to arrive. as for the settings I'm running :

Catalyst 13.1 clean install. with included APP APK.
Win 7 Ultimate 64Bit
CGminer 3.1.0

Code:

setx GPU_MAX_ALLOC_PERCENT 100
"C:\Users\TV\Desktop\guiminer-scrypt_win32_binaries_v0.04\cgminer\cgminer.exe" --scrypt -u user -p pass -o stratum+tcp://global.wemineltc.com:3335 -w 256 -I 13 -g 2 --thread-concurrency 8192 --temp-cutoff 85

Now this will get me anywhere from 520-560kh/s speed on the card if I leave the card at default clocks. BUT after hours of tuning with just AMD Overdrive, I gotten my hasrate up to 660Kh/s

945-949/1575 = 650KHs
895-899/1500 = 625KHs

mem clock is set to max for the best efficiency mining and the core clock has a very sensitive line.
For example my card will get around 550KHs with 950/1575 and 650KHs with 945/1575
Because AMD Overdrive only does 5Mhz increment I cannot pin point the exact line to the 1Mhz yet.
You can play around with ur Core clock a bit with one card and try to find the line that gets u that extra 100 Khs

Since 650KHs is still probably a bit off from the optimal speed for a 7970
My next step would be trying to find more BIOS for the card but I havent started on that yet!

I can actually get a little over 700kh/s on my Powercolor without flashing it
use the mem and clock tuning in cgminer and set it to 1020/1450
and i use the same config in scrypt as you do
heres some info on the card i have
if you like i can send a copy of my bios..

PowerColor Card
GpU-Z
015.032.000.002.000000 (113-C3860100-100)

Tahiti indentifier- HD 7970 (SK Hynix H5GQ2H24AFR)