7990s. you wont' like the temperature. I constantly run above 90 c. can be tricky to keep it running. will burn a lot of boards.. gl
You need to undervolt the core with MSI afterburner beta. My setting with 1.0V, 950/1000MHz, it hashes at 1320kH/s. The temperature varies depending on the thermal paste of the cards. |
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I think it is the driver. You need to remove the AMD dirver while with 7950, then shutdown the computer and install the 7990 and install AMD catalyst 13.4 or later.
If it still does not work, you need to reinstall Windows.
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I use Windows 8 64 bit. I can use the MSI afterburner Beta to change the core voltage. My catalyst version is 13.4/13.6 beta.
What is your core/mem frequency? Can you reduce the frequency of GPU4?
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Do not use shaders.
I use 950/1000MHz, the hash rate is 1320 kH/s per card.
Here is my config.
"api-allow" : "W:127.0.0.1",
"api-listen" : true,
"failover-only" : true,
"scrypt" : true,
"gpu-threads" : "2",
"intensity" : "13",
"temp-overheat" : "94",
"worksize" : "256",
"lookup-gap" : "2",
"thread-concurrency" : "8192"
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What I want to change is to express the "my estimated earning" in each round in mBTC as there are too many zeros before a nonzero number in a small earning in each round. The client ledger and coin balance can still be in BTC. Our brain should be powerful enough to convert between mBTC and BTC, but it takes me some time to count zeros.
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Would it be possible to use mBTC instead of BTC so that we do not have to count too many zeros.
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My voltage problem solved , catalyst 13.9 and MSI AfterBurner 3.0 beta 17
vddc for my 7990 set up at 1.13V without OC and every gpu is mining with speed 660KH/s max GPU temperatures 78'C
VRM temperatures 85'C good enough for me now .
b.t.w
I still can't play BF4 or Benchmarks using 2x7990 it is shame on AMD drivers team that they can't do a proper drivers for multigpu configs.
Are you able to lower memory voltage? |
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Panckage, are you suggesting making middlecoin into several pools and then spitting the miners up amongst them (such as middlecoin1, middlecoin2, middlecoin3) and having them all use middlecoin as the front end?
Yes that's it I've been wondering why that isn't the default approach for awhile now. It makes much more sense to spread out the hashing power over the top 4-5 coins, with weighting based on profitability (i.e. the 5 five coins could get: 30% then 25%, 20%, 15%, 10%). This way if the price drops on the coin you've been mining, the impact is much less. It also utilizes the pool's hash rate better. For example let's say the target coin has a low hash rate around 50Mh/s, in this case allocating 100% of the pools 1.6Gh/s at the coin is no better than allocating 33% (around 500Mh/s), both will capture almost 100% of the coin's blocks, but this frees up hashrate for other coins as well. This is a good idea if we are the only or major multipool. If other big pool only mine the highest profit coin, the highest weighting coin (most profitable) we are mining will also drop in profitability. We can use a very small percentage of our hashing power for the lower difficulty but very profitable coins so that the difficulty will not rise dramatically. |
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Hey finally got my problems sorted out mining now for 7 hours how much do you guys get on average for 1MH per day? can't wait the 2-3 days to get an estimate myself  Here is the profit graph: http://middlecoin.com/profitgraph.htmlWe are at Hashcow thread and you give him a profitgraph of middlecoin? You are too fast. I have edited my reply, |
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I am running 4XMSI7990 without problem on Gigabyte GA-Z68AP-D3 ATX Intel Z68 Express DDR3.
I use two OCZ 1250W Gold power supply, which is too high for 4X 7990.
If I run 3X 7990, one 1250W PSU is OK as I undervolt, the power consumption is less than 400W each card.
My setting: 1.0V VDD, core/mem 950/1000MHz. When it runs at 1.2V, the power consumption is much higher than 400W, maybe 550W each card.
The temperature varies due to the quality of thermal paste application on the GPU.
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Whoa, that last 26 minute round of TAG netted me 0.031 BTC (I only have about 1 MH/s). Awesome!
Is there anything wrong with TAG? The profitability is too high at 919!!! |
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hey guys we appreciate all the feedback. We try to keep on top of everything, we usually are here pretty often this last week I was kinda out because I had a abbrasion on my eye so I was half blind and any brightness hurt my eyes... so im back and nearmiss is here too so keep on mining and we will take care of everyone the best we can.
moooooo
Wish you well soon |
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hi, on dustcoin my estimates for 1300-1500khash are 0.022 per day
so far in 12 hours i have 0.006 whic his gonna be barely a half of the predicted
mining LTC or FTC gets me to 0.02 per day
is this because this is a first day that im seeing such low count, or does this pool have problems?
thanks
I think it is because of first day and you will have some immature coins. But for 1.5MH, there is no point mining here as the difficulty level (512) is too high for such small hash rate. |
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I have 11.5MH/s from 4 rigs. It displays 10.4MH/s from the hash cow website. I have no problem with that as that value varies a lot. At the moment, it is mining WDC. My submitted share is 470, the total share 46850. So my percentage share of the total share is 1%. The total Hash is 532 MH/s at the moment, my percentage share of the mining power is 2%. So why there is such a big difference? My reject rate is 3.5%
Is it because the my submitted share and total number of share are not difficulty level adjusted (weighted differently)?
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27% 的增长是12 天的，每个月超过 100% ， 千万不要上当！ 我已经上了老杨的当了！ 现在很了解他们！现在没有能回本的矿机，除非btc大涨！！！！！！！！
+1 |
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I run my 7950 at 13 intensity with 2 GPU threads to reduce the rejected shares. It is 15% slower than 19 intensity with 1 GPU thread.
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I would say mine Litecoins. Convert them to bitcoin on an exchange and buy ASICS from megabigpower.com or through forum auctions. Then use the earnings from ASIC for whatever use you guys want to.
I think he tries to use the existing resources, ie CPU. So ASIC is not a good option, because they are not in a business to expand. |
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Yeah. 1 GH/s is way too much for some of these coins.
Don't worry your customer service policy should soon solve that problem for you. +1 |
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If more than 50% of adults know, there will be a crisis for sure. FED's main job is disguise what they are doing, and so far they invented so many strange terms to cover the simple fact -- "money printing" When people finally realized what is really happened, they will turn to bitcoin one by one +1 |
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