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21  Alternate cryptocurrencies / Pools (Altcoins) / Re: [LTC] [PPS] [POOL] [Stratum/LTC only] ltcmine.ru - Litecoin PPS mining pool on: April 03, 2013, 02:33:54 PM
The pool stopped working 17:06 (UTC +2) and has been down for ½ hour now Sad

18:21 - Still down
22  Alternate cryptocurrencies / Altcoin Discussion / Re: [s] litecoinpool.org account on: April 03, 2013, 02:31:24 PM
Why are they keeping registrations closed even when they only have 11% hash power o,O
23  Alternate cryptocurrencies / Speculation (Altcoins) / Re: LTC up to $1 on: April 02, 2013, 01:50:13 PM
$2.45. Insane Cheesy
Wish I had started mining back in 2011 with cpu miner while mining bitcoin with my GPUs.
24  Alternate cryptocurrencies / Speculation (Altcoins) / Re: LTC up to $1 on: April 01, 2013, 11:49:14 PM
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.
25  Alternate cryptocurrencies / Pools (Altcoins) / Re: [LTC] [PPS] [POOL] [Stratum/LTC only] ltcmine.ru - Litecoin PPS mining pool on: April 01, 2013, 11:35:50 PM
Pool seems to be down. Luckily I noticed it in 5 minutes and changed miners elsewhere..
26  Bitcoin / Hardware / Re: -= Galaxy 1 - 20nm ASIC Announcement =- on: March 27, 2013, 05:35:18 PM
I hope this company has funding needed to develop the ASICs and won't take pre-orders 6 to 9 months early.
27  Bitcoin / Mining software (miners) / Re: CGMINER GPU FPGA overc monit fanspd RPC stratum linux/windws/osx/mip/r-pi 2.11.3 on: March 24, 2013, 10:41:32 PM
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.
28  Bitcoin / Mining software (miners) / Re: CGMINER GPU FPGA overc monit fanspd RPC stratum linux/windws/osx/mip/r-pi 2.11.3 on: March 24, 2013, 04:43:57 PM
https://bitcointalk.org/index.php?topic=28402.msg1635964#msg1635964

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.. 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
Code:
--intensity 13 --worksize 256 -g 1 --thread-concurrency 8192 

Some results that I wrote down:
29  Alternate cryptocurrencies / Mining (Altcoins) / Re: Consolidated Litecoin Mining Guide for 5xxx, 6xxx, and 7xxx GPUs on: March 24, 2013, 04:10:38 PM
Added a link to ckolivas post here on front page for 7970 https://bitcointalk.org/index.php?topic=28402.msg1635964#msg1635964

7970s are some kind of black magic apparently, you need to change the memory and core speeds 1-5 MHz at a time to get 700 kh/s

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:
30  Alternate cryptocurrencies / Mining (Altcoins) / Re: Consolidated Litecoin Mining Guide for 5xxx, 6xxx, and 7xxx GPUs on: March 24, 2013, 11:36:06 AM
Quote
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/s
1175 & 1728 MHz = 594 KHash/s

So 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:
Code:
7970 Catalyst 13.3 beta3 || 604kHash || 1175 MHz || 1880 MHz || cgminer version 2.11.3 || --intensity 13 --worksize 256 -g 1 --thread-concurrency 8192 

31  Bitcoin / Mining speculation / Re: here's just how screwed ASIC buyers are - READ THIS if you have a preorder on: October 07, 2012, 02:52:59 PM
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.
32  Other / CPU/GPU Bitcoin mining hardware / Re: [Help]7970 settings for mining on: September 29, 2012, 03:36:52 PM
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
33  Other / CPU/GPU Bitcoin mining hardware / Re: 7970 stops hashing if there is not a monitor plugged in on: September 18, 2012, 11:54:53 AM
You'll need dummy plugs for the cards due to Windows limitations or use Linux instead.

For dummy plug you'll need DVI-VGA adapter and 3x 68-75 Ohm resistors.
https://bitcointalk.org/index.php?topic=16816.0
34  Other / CPU/GPU Bitcoin mining hardware / Re: DiabloMiner GPU Miner (LP, BFI_INT, async nw, multipool, 79xx GCN) on: March 28, 2012, 03:28:39 PM
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.
35  Other / Beginners & Help / Re: GTX 680 numbers on: March 28, 2012, 02:35:33 PM
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.
36  Other / Beginners & Help / Re: My initial Radeon HD 7970 mining benchmarks on: February 25, 2012, 12:23:57 PM
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.
37  Other / Beginners & Help / Re: Which miner are you using? on: February 19, 2012, 02:34:01 AM
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..
38  Other / Beginners & Help / Re: My initial Radeon HD 7970 mining benchmarks on: February 02, 2012, 10:46:04 PM
Damn noisy at 55% for anyone who is close to it. Smiley

True, I'm using 925MHz 1020mV / 366MHz 1500mV and fan @29% whenever I want some peace and quiet Smiley

Has anyone found any optimized kernels yet? Or manage to get more than 550MH/s @ 925MHz ?
39  Other / Beginners & Help / Re: My initial Radeon HD 7970 mining benchmarks on: January 28, 2012, 01:46:03 PM
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
40  Other / Beginners & Help / Re: My initial Radeon HD 7970 mining benchmarks on: January 17, 2012, 06:21:30 PM
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
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