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The pool stopped working 17:06 (UTC +2) and has been down for ½ hour now 18:21 - Still down
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Why are they keeping registrations closed even when they only have 11% hash power o,O
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$2.45. Insane Wish I had started mining back in 2011 with cpu miner while mining bitcoin with my GPUs.
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It's usually a bad idea to buy anything at all time high, but who knows.. Value might just keep rising as more miners join in.
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Pool seems to be down. Luckily I noticed it in 5 minutes and changed miners elsewhere..
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I hope this company has funding needed to develop the ASICs and won't take pre-orders 6 to 9 months early.
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I use the very first driver that supported the 7970, aka 11.12 with 7970 hotfix: amd-driver-installer-8.921-x86.x86_64.run I also use SDK 2.7 which seemed the best.
Once again, your mileage may vary since all hardware is different, more system ram might help etc. Note also that setting the CPU frequency to performance instead of ondemand also helped a little.
Thanks for the tips. I'll give it another try tomorrow. Intensity 14+ is not working at all (kills performance), so I'm hoping it's a driver issue.
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https://bitcointalk.org/index.php?topic=28402.msg1635964#msg1635964I did exactly what ckolivas suggested in that post.. Cgminer defaulted to tc 22400, but that was a lot slower than 8192, so I manually set 8192. 1880 MHz turned out to be maximum stable memory clock and I went through 900 - 1175 MHz GPU in 5 MHz increments and at 1175 MHz GPU I finally reached 600 kh/s. Dunno what else to do at this point.. Does anyone have any ideas? I wonder which driver set is ckolivas using? I'm using Catalyst 13.3 beta3 || cgminer version 2.11.3 --intensity 13 --worksize 256 -g 1 --thread-concurrency 8192 Some results that I wrote down: ![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FnD7euPK.png&t=665&c=p1qzmYzfEtyYxQ)
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I did exactly what ckolivas suggested in that post.. Cgminer defaulted to tc 22400, but that was a lot slower than 8192, so I manually set 8192. 1880 MHz turned out to be maximum stable memory clock and I went through 900 - 1175 MHz GPU in 5 MHz increments and at 1175 MHz GPU I finally reached 600 kh/s. Dunno what else to do at this point.. I've been reading forums and others seem to be having problems as well. I wonder which driver set is ckolivas using? Some results that I wrote down: ![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FnD7euPK.png&t=665&c=p1qzmYzfEtyYxQ)
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7970 (cgminer): 8192 (~650 kh/s can be obtained with a core/memory ratio of 0.68, e.g. 1000 MHz core and 1480 MHz memory., at an intensity of 13) Has anyone got even close to this hashspeed with the clocks above? And if so, which settings and drivers did you use? I tried clocks with the "memory ratio of 0.68", 1000MHz & 1480MHz = 508 KHash/s1175 & 1728 MHz = 594 KHash/sSo far there hasn't been any magical performance boost with the clock ratios mentioned. My extensive testing has shown that performance increases linearly with clock speeds... Here's my setup: 7970 Catalyst 13.3 beta3 || 604kHash || 1175 MHz || 1880 MHz || cgminer version 2.11.3 || --intensity 13 --worksize 256 -g 1 --thread-concurrency 8192
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I hope people will get their moneys worth. Once it's not worth mining anymore the ASICs will be worthless and useless as well. GPU mining weren't as risky. You could use them for other purposes or resell for a fair price.
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I'm still running Phoenix1.75 on my 7970.. Using release date RC5 drivers because the early drivers have no issues with MSI Afterburner. I'm not sure if any other software can downclock 7970 memory properly.
My reference card is normally clocked at GPU 925 MHz (0.955v) / MEM: 366 MHz (1.500v). Rate: 548 MH/s.
And whenever I don't care about the noise: GPU 1200 MHz (1.167v) / MEM: 366 MHz (1.500v). Rate: 708 MH/s
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What kind of settings are people using for 7970? I'm running my gpu 925MHz/366MHz for testing purposes.
Latest DiabloMiner "-v 1 -w 256" mining at ~550MH/s Phoenix 1.7.5 "-k poclbm WORKSIZE=64 VECTORS3 AGGRESSION=14" mining at 552MH/s
I'm using the 8.95.5 driver set.
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It's a shame that nVidia cards perform so badly in OpenCL calculations.. Otherwise GTX 680 is overall way better card than HD7970 for example.
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70% fan is too high for my preference.
My sweetspot is 1125/685
666(lol)mhash
55% fan, 68C
You could easily drop fanspeed to around 40-45% or increase voltage and GPU speed. These GPUs can handle even 80°C. I take it that you are using only CCC to adjust clock speeds. I recommend using MSI Afterburner or similar tool.
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Still using phoenix 1.7.4 on my Sapphire HD7970. It does 551MH/s on stock 925/1375MHz. Haven't seen much kernel improvements lately..
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Damn noisy at 55% for anyone who is close to it. ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) True, I'm using 925MHz 1020mV / 366MHz 1500mV and fan @29% whenever I want some peace and quiet ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) Has anyone found any optimized kernels yet? Or manage to get more than 550MH/s @ 925MHz ?
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1225MHz @1225mV / 366 MHz (1500mV) seems to be high as I can go without display artifacts. This yields avg ~725MH/s and temperature is 80 degrees on fan 55% setting.
Phoenix settings: -k poclbm WORKSIZE=64 VECTORS1 DEVICE=0 AGGRESSION=11
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Sapphire 7970 - Using phoenix 1.7.3 I'm getting: 550MH/s on 925MHz GPU / 340 MHz memory 712MH/s on 1200MHz GPU / 340MHz memory Bumping mem to default 1375MHz adds like 5MH/s so I don't really see the point. I haven't found the lowest stable point for GPU voltage yet, but it seems to be approx 1000mV for 925MHz/340MHz. Now waiting for optimized kernels ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
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