Quote from: virtualreality69 on March 12, 2014, 04:35:47 PM

Joshwaa/iCrazyNoob,
I'd kill for 700kh/s average on my xfx r9 280x DD. I'm averaging around 675 with throttling or even lower (630) with (non-throttling) clock speeds of 1020/1400. Everything fully cranked 1135/1500 @ 20 Intensity will get me almost 700kh/s, but it runs hotter, throttles every 20 seconds, and produces a lot more rejects.

I've tried just about everything. Updated to the latest amd drivers (from 13.11), updated to cgminer 3.7.2, tried two of the Silts undervolted bios, created my own undervolted bios, tried a dozen or two different config files, tried bat file configurations, even tried linux (Ubuntu) all with no hash increase. The only things I havent tried yet are custom kernals (up to 20kh/s increase) and sgminer.

Recently I've noticed quite a bit of throttling when they're running at 1100/1500 (currently undervolted to 1.144, anything lower and the card crashes when mining). I get less throttling at 1020/1500, and almost none at 1020/1400, but a much lower has hrate. I've also noticed the MVDDC still seems quite high at 1.500 in gpu-z. Does that seem correct or should it be lower? Might that have something to do with the throttling? Atleast I'm running a bit cooler with it undervolted (regardless of throttle).

Any advice? Can/should I lower my mem vddc?

Someone mentioned using Trixx, Afterburner, gpu tweak, etc to stop throttling. If I lower the voltage just a little the card will usually crash. Anything else I can do?

See my gpu-z and be7 image attached

Cheers,
- VR
http://i.imgur.com/pUH1EQB.jpg

Quote from: Joshwaa on March 05, 2014, 12:03:48 AM

Quote from: iCrazyNoob on March 04, 2014, 05:10:02 PM

Quote from: Joshwaa on March 04, 2014, 01:40:20 PM

Sent you a lil something. I am running at 1020/1500/1.0v getting around 705khash/s

I also have 2 Sapphire reference 7970. Tried flashing that ASUS Bios and it bricked them. Love that BIOS switch. If you have any ideas or Bios for those let me know. Thanks

Try this BIOS out:
http://www.mediafire.com/download/8dldldm58wxqrs2/MBA_C3860100-100_AGR_K2.rar
it should work well with any reference design card!
Same stuff as always 1500MEMCLK only and adjust core&voltage to your liking.

Turns out the cards were fine. The Bios in the ASRock mobo did not like the new GPU Bios and would not boot because of that. I updated the MOBO Bios and now all is good!

Hmm, if you are using Stilts' BIOS u can also try 1375MHz Mem and adjust core clocks accordingly.

If your card is throttling even at 73C check your VRM temperatures in GPU-Z, if that is hitting 90C+ that might be the problem. Try turn the Power Limit to -20% might help.

Keep in mind sometimes higher clock doesnt result the highest hashrate. go from 900 Core clock and add 10Mhz each time if hashrate goes up try bump 10 more until you hit the point where it start dropping or your card is running too hot. try to keep it under 80C

Adding a strong fan blowing directly at top of the card or the back of the card will reduce VRM temptures try that.

my 7970s run @ 1050/1500/1.087V