Cryptocoin Mining?

[Silverforce11]

Running the intensity at 20 makes gpu usage jump up and down from 100% to 0% and seems to give poor results. Highest I can go is 19. I tried using the settings you have and I am still only getting about 700kh/s. When I set it to 19 I get the same results. Maybe just a tad higher.

I have a feeling it has something to do with why I can't run it without -T.

Sounds like your cards are hitting the powertune limit, throttling down. Mining is ~ 30% more intensive on the GPU than gaming at full load, just looking at GPUZ tracking VRM voltage and current.

You want to increase powertune to +50% and let it go nuts if you're on water.

 

[zhuks]

I always have powertune to +50% in MSI AB unless it isn't actually accepting it. As soon as I start bumping up clocks with or without extra voltage I start to lose performance. Very strange.

 

[Silverforce11]

I always have powertune to +50% in MSI AB unless it isn't actually accepting it. As soon as I start bumping up clocks with or without extra voltage I start to lose performance. Very strange.

That is indicative of hitting the powertune cap of 100%.

 

[chimaxi83]

I used the guide and have crap results as well. I am running a Sapphire 290x, cgminer, windows 8.1 64bit.

I have tried the latest beta as well as the whql and there were no differences. I tried with and without installing the AMD SDK still no difference.

The first issue I am having is when running cgminer without -T I get a blank screen. Sadly running -t doesn't provide all the information I want, but I guess I can just run cgwatcher in addition to it.

I am running on water so able to try a bunch of different clock speeds along with voltage settings.

I ran the below one time as admin and confirmed that the settings have been changed in windows.

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1

When running 1200mhz on core and anywhere from 1250-1600 on memory I only get 630kh/s which seems very low. I used the settings below.

cgminer.exe --scrypt -o stratum+tcp://xxxx:3333 -u xxxx -p xxxx--thread-concurrency 32765 --lookup-gap 2 -w 512 -I 13 -g 1 -T

I am able to get an avg of 750kh/s with the below setting, but due to the intensity of 19 the computer cant be used for anything else.

cgminer.exe --scrypt -o stratum+tcp://xxxx:3333 -u xxxx -p xxxx --gpu-engine 947 --gpu-memclock 1250 --thread-concurrency 32765 -I 19 -g 1 --worksize 512 --gpu-powertune 20 --lookup-gap 2 -T

With the exact same settings as above, but the intensity set to 14 I can use my system, but only get an avg of 600kh/s.

I did run as high as 1300mhz on core and 1625 on memory and still only get 700kh/s with an intensity of 13.

The system performs flawlessly when gaming. Not sure if it makes any difference, but the cpu is a 4770k @ 4.7ghz and 16gb 2133mhz memory.

You really don't have to overclock for LTC mining, just have to find the sweet spot. I did no tweaking to speeds whatsoever and am hashing at ~875kh on each of my cards, stock 947/1250 clocks, power limit to +50%. Thread concurrency 27400, everything else default.

 

[nwo]

I just came home, sent myself the exact copy of the settings I used at my other office rig with MSI 7870... I am getting 320kH/s at home on my XFX 7870 and 370-380kH/s at the office.

I am updating my AMD drivers now to the beta drivers 13.11 since I think I am running 13.9 now. If that doesn't work then I will blame it on Windows 8.1 pro 64 bit since that's what I am using at home and I am using Windows 7 Home Premium 64 bit at the office.

But at least I am getting about 50kH/s more with cgminer than I was getting with guiminer. My home XFX 7870 was at 285kH/s before which was pathetic.

If you are having trouble, I would recommend tweaking the settings (especially the intensity). For best results, you should probably use 18 or 19.

Edit: still getting same results with the beta drivers (which is what I'm using with the MSI 7870). So I guess the next step will be installing Windows 7 on this rig Or perhaps I will wait for my Sapphire 7870 to arrive (hopefully Tuesday). I will pop it in my home rig and see what kind of results I get. I'm too lazy to take my XFX card to the office D:

 

[blastingcap]

At the office? Unless you own or manage the office, you are asking to get fired.

 

[Silverforce11]

You really don't have to overclock for LTC mining, just have to find the sweet spot. I did no tweaking to speeds whatsoever and am hashing at ~875kh on each of my cards, stock 947/1250 clocks, power limit to +50%. Thread concurrency 27400, everything else default.

GUI miner?

There seems to be a ~5% performance drop for using GUI miner.

 

[zhuks]

I tried running the below and still only get an avg of 730. Clocks and voltage are stock. Power is set to 50% in MSI AB.

--gpu-engine 1000 --gpu-memclock 1250 --thread-concurrency 27400 -I 19 -g 1 --worksize 512 --gpu-powertune 50 -T

I also tried --worksize 256 with no difference.

 

[Silverforce11]

I tried running the below and still only get an avg of 730. Clocks and voltage are stock. Power is set to 50% in MSI AB.

--gpu-engine 1000 --gpu-memclock 1250 --thread-concurrency 27400 -I 19 -g 1 --worksize 512 --gpu-powertune 50 -T

I also tried --worksize 256 with no difference.

Can you track the GPU clocks and see what happens? GPUZ sensors will pick it up.

 

[chimaxi83]

GUI miner?

There seems to be a ~5% performance drop for using GUI miner.

Yeah, I still can't get cgminer to work for me, even though GUIMiner is using it. I try and just get a blank command window but 100% GPU usage, with low hash rate reported by my pool.

 

[blastingcap]

You know, guys, rather than attempting to re-invent the wheel you can simply look at the litecoin.net forum or the bitcointalk.org forum. Lots of veteran miners there. These posts on this thread about mining settings are like the blind leading the blind.

 

[zhuks]

Running the same as before with the intensity set to 15 below are my results below.

Stock clocks: 600kh/s avg
1200/1400+100mv: 590kh/s avg
1300/1625+200mv: 630kh/s avg

All clocks hold 100% stable the entire time with no dips. I watched clocks in MSI AB and the GPU-Z.

Also I did post on litecoin.net, but not received any sort of help.

 

[nwo]

At the office? Unless you own or manage the office, you are asking to get fired.

Yeah, I manage it and it's a family owned business so I'll be OK.... for now

GUI miner?

There seems to be a ~5% performance drop for using GUI miner.

Yep, I can confirm that it can be even more than 5%. I was getting ~285kH/s with guimer and now I am getting 320kH/s with cgminer.

You know, guys, rather than attempting to re-invent the wheel you can simply look at the litecoin.net forum or the bitcointalk.org forum. Lots of veteran miners there. These posts on this thread about mining settings are like the blind leading the blind.

I will try there tomorrow. I have registered at the forum where I registered for my LTC pool (wemineltc.com) but I can't even see the forums after logging in my account, even though I could see and read them as a guest.

 

[chimaxi83]

You know, guys, rather than attempting to re-invent the wheel you can simply look at the litecoin.net forum or the bitcointalk.org forum. Lots of veteran miners there. These posts on this thread about mining settings are like the blind leading the blind.

They're not doing much better with these particular cards, but thanks for the suggestion, pro.

 

[Erenhardt]

I started Litecoin with my 7770 for LOLz.
190-200 kH/s @ 150W - the actual increase between idle (surfing) and mining is less than 50W
It says I will earn $100 per month.(http://dustcoin.com/mining)
WTF?!

 

[ShintaiDK]

I started Litecoin with my 7770 for LOLz.
190-200 kH/s @ 150W - the actual increase between idle (surfing) and mining is less than 50W
It says I will earn $100 per month.(http://dustcoin.com/mining)
WTF?!

11x price increase in 2 weeks

 

[Silverforce11]

Yeah, I still can't get cgminer to work for me, even though GUIMiner is using it. I try and just get a blank command window but 100% GPU usage, with low hash rate reported by my pool.

Ahh, I haven't up powertune, too damn noisy already as is and it throttles to around 912mhz with jet-mode fanspeed.

Thats why you get 875kHa/s, you up powertune and allow the GPU to go nuts.

Even the "Pros" only manage around 880 kHa/s without OC.

 

[taq8ojh]

Reading some of the posts here, is bitcoin mining even worth it these days for a newcomer? It looks like I'd have my PC crunching some numbers for a month, and it would MAYBE give me as much as two hours worth of salary in a job?

 

[ultimatebob]

Reading some of the posts here, is bitcoin mining even worth it these days for a newcomer? It looks like I'd have my PC crunching some numbers for a month, and it would MAYBE give me as much as two hours worth of salary in a job?

Yeah... mining Bitcoin on a PC doesn't make any sense anymore. You would actually lose money once you factored in power costs!

You can still make a few bucks a day mining Litecoin on an AMD GPU, though. You might be able to make a bit more than that if you try some of the alternative currencies, but who knows if any of those will ever be worth anything.

 

[nwo]

I started Litecoin with my 7770 for LOLz.
190-200 kH/s @ 150W - the actual increase between idle (surfing) and mining is less than 50W
It says I will earn $100 per month.(http://dustcoin.com/mining)
WTF?!

200 is pretty damn good for a 7770 when you consider I am only getting about 100 more with my 7870

And yes, you can expect to earn $100 per month if you run it 24/7.

I have everything listed here to try and get my XFX 7870 Double D above 300kH/s but whatever I change I still can't break 300-320. I am running 970/1450 clock speeds with +20% power. It's running stable at these clocks, no hardware errors. I even tried using an older cgminer version (2.11.4) and I am running windows 8 but my results are still far from the 375kH/s that person was getting with their XFX 7870 Double D.

 

[Minjin]

Yeah... mining Bitcoin on a PC doesn't make any sense anymore. You would actually lose money once you factored in power costs!

You can still make a few bucks a day mining Litecoin on an AMD GPU, though. You might be able to make a bit more than that if you try some of the alternative currencies, but who knows if any of those will ever be worth anything.

As I've said repeatedly, the power costs DO NOT MATTER if you are currently paying for electric heat. All you are doing is substituting a heater that does calculations for a heater that doesn't do calculations. The only reason NOT to mine (given above scenario) is if you are worried about wear and tear on the fan.

 

[Erenhardt]

200 is pretty damn good for a 7770 when you consider I am only getting about 100 more with my 7870

And yes, you can expect to earn $100 per month if you run it 24/7.

I have everything listed here to try and get my XFX 7870 Double D above 300kH/s but whatever I change I still can't break 300-320. I am running 970/1450 clock speeds with +20% power. It's running stable at these clocks, no hardware errors. I even tried using an older cgminer version (2.11.4) and I am running windows 8 but my results are still far from the 375kH/s that person was getting with their XFX 7870 Double D.

I have the best H/s running downclocked core to 950MHz (1000 default) and OC memory to 1250MHz. Increasing memory speed by just 10MHz will lead to lower H/s. Looks like above 1250MHz memory is adjusting (increasing) its timings. It catches up around 1500MHz but then it is unstable.

 

[nwo]

I have the best H/s running downclocked core to 950MHz (1000 default) and OC memory to 1250MHz. Increasing memory speed by just 10MHz will lead to lower H/s. Looks like above 1250MHz memory is adjusting (increasing) its timings. It catches up around 1500MHz but then it is unstable.

I was running 900/1350 because that gave me the best results so far with my XFX card @ 320kH/s.

I am running at 950/1250 now and getting 330kH/s. Thanks

By the way, which numbers are accurate? The ones displayed in cgminer or the ones reported on the site? Because on the site I am getting around 400kH/s for the XFX card and 100kH/s for my i7 4770k. The CPU numbers reported on site and in cgminer are the same, however, the GPU numbers are a little bit off.

 

[Smartazz]

Bitcoin getting hammered today

 

[Pandora's Box]

Bitcoin getting hammered today

just like any market, ups and downs.