Quote from: Shenrox on January 21, 2014, 09:46:26 PM

Quote from: SeekEvo on January 21, 2014, 07:07:15 PM

I just picked up two of these cards last night and was having temperature issues. I flashed the bios, but could not get the control unlocked...still stuck at 1.2v. Would you mind sharing your method for unlocking it?

Thank you!

I use VBE7 to change the bios settings and then use ATIwinflash to flash it to the card, though I put by bios 'pin' in position 2 beforehand.

Guide here: http://www.techpowerup.com/forums/threads/vbe7-vbios-editor-for-radeon-hd-7000-series-cards.189089/

Though I couldn't unlock it to have another program change it, i have to flash it everytime i want to change the voltage.

Hope this helps

))

**PS. Make sure you know what your doing when messing with graphics cards bios', you don't want a $400 paperweight....

Thanks very much for your help...I was playing around a bit and noticed you guys were using 8912 for TC (flip-flopping the "9" and the "1")...that seemed to hurt my hashrate. I'll play around a bit more with different driver versions...I'm currently using 13.12 and haven't tried the earlier drivers.

This was able to get me to the mythical 730KH/s@1.075v:

"api-allow" : "W:127.0.0.1",
"api-listen" : true,
"failover-only" : true,
"scrypt" : true,
"auto-fan" : true,
"auto-gpu" : true,
"gpu-threads" : "2",
"gpu-engine" : "1049",
"gpu-fan" : "85",
"gpu-memclock" : "1500",
"gpu-powertune" : "-20",
"gpu-vddc" : "1.075",
"intensity" : "13",
"temp-target" : "75",
"temp-cutoff" : "90",
"worksize" : "256",
"lookup-gap" : "2",
"thread-concurrency" : "8192"