GHash has been sitting above 25GH fairly consistently, with or without sfire mining there.
That's not correct. I am following the pool on an hourly basis and I can tell you in all certainty that whoever this 20GH guy is, he's the one that gets GHash.IO above 25GH/s to 45GH/s +/-. Pool is either <25GH/s or above 45GH/s (+/-). |
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I kept waiting for the Amway pitch.
Any time some sales drone goes on for any length of time without telling you what he is pitching, it is a scam.
+1 |
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Hi, I would like to ask about two things:
1 - Is there a way (anoher utility etc..) which will send me an email notification when the sgminer or cgminer crashes?
2 - Is there a utility which will send me a screenshot let say once per hour on my email? I would like to check whether everthing is running ok etc..
1. There's a software called CGwatcher and as the name implies it monitors your miner to make sure it's working at all times (has options for restarting miner/pc upon given conditions, heat protection, etc). 2. Not that I know of but you can simply download something like TeamViewer which allows you to remotely control a computer (your miner for example). You can install TeamViewer on your work PC or mobile phone and use it to control the miner computer or check on it. Both CGwatcher and TeamViewer are free. |
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Driver crash is usually caused by a mismatch between voltage and clock speeds (and obviously it could be due to faulty drivers).
Try lowering your clock speeds and remove all undervolting until you are stable and happy with speed. After that you can proceed with undervolting.
P.S. You will almost always need to restart your PC after a driver crash, even if it's restored.
P.P.S. Your other "exact same rig" do the cards there have the exact same memory type? exact same bios? exact same manufacturer/model? Even if you answered yes to all you should know that you must undervolt each card separately as they can come with slightly different stock voltage.
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I think you guys are missing a very plausible alternative and that's that the OP (on Reddit) has a few thousand BTC, say 3,000.
So you have 2 cases to consider:
1. 300 BTC is gonna be worth less than 1x BRK.A/B share - OP (on Reddit) will lose 300 BTC (10% of his total) and that's it (BTC value shouldn't drop from losing to BRK as it's the king of the hill).
or
2. 300 BTC will surpass 1x BRK.A/B share in value and since OP (on Reddit) will also have a PR event alongside that, it's quite plausible that this will get the BTC value to skyrocket as it has just beaten BRK as an investment option.
Just doesn't make sense to me that he accepts BTC if he wages against it unless he has a lot to gain from him "losing" (BTC winning) the bet.
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My power as residential is 9.6701 cents per kilowatt hour. I was lured by the easy money of about 6 months ago and began learning about crypto and figuring out what I could mine with. At first it was cpu mining. The I found a hd5450 I had laying around could mine. A friend had a bushel of them he gave me and pretty soon I had mined enough to spring for a 7970. A little while later, a 5850, then another 5850 along with a 7950 joined the fray. I had golden dreams making about $20/day on alt coins with 2gh/s. Now, at $6-7 bucks a day I'm on the verge of unplugging the rig, selling the cards and picking up an antminer s1, 180 GH/s at 300 watts. At current rates that's $14/day at 1/3 the power cost. I don't see a happy end to this alt coin story.
Is this guy for real? You seriously compared BTC farming where you are guaranteed to earn 20%+/- less every 10 days? And if the difficultly increase is gonna average out to 25% (which is more than plausible) you'll never see ROI. I like it how you causally type that you'll make 14$ a day as if it's a constant. If you wanna unplug your rig and sell it, than by all means, but from there to buying an antminer as if it's something profitable and so much better... lol. |
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Motherboards required to support multiple GPU's need CROSSFIREX(for ATI cards) or SLI(for nVida cards) compatibility, which allows you to use multiple GPUs. I saw that someone post that they mined WITHOUT it, but I rather not question or try that. Sorry, but this is wrong. I Got a non XF (1 x16PCIE and 2x x1PCIE) motherboard and it's running 3x R9 290 without a problem. - I think you can use multiple types of GPU's to mine? I do not think it matters, they do have to be the same if you are using the GPUs to improve graphics, since SLI/Crossfire doesn't work with different cards. But since we are using the cards to mine, it does not matter. Right? lol
SLI / XF doesn't matter for mining and it can actually interfere with mining properly - not that I ever had any issues with it, but just from reading around what other people wrote. - But does that mean per day? Overall? Hour? Or is it a universal thing I just dont know about?
In 99.99% of the cases the measurement will be watt per hour. The R9-290's are harder to mod and undervolt. They are fairly straight forward to mod using MSI Afterburner (and I assume you aren't talking about clock speed profiles). That's why it is MANDATORY to undervolt by modding the bios. There are plenty threads about this, even a famous one by drakoin here on the forum. Bios modding isn't mandatory. But it is recommended in case you get Elpida or HynixMFR that you get one of Stilts modded bios, otherwise, Afterburner for voltage and clocks is just as good. The fans shouldn't need to go above 70%. If they do, you need to undervolt more and get better cooling. This statement really depends on the card. It's nearly impossible (and not really needed) to get stock R9 290 to be cool (<85) with 70% fan speed (and whatever undervolting you do), with 85% on the other hand, you can and that's also the consensus to how much strain you wanna put on the fans for 24/7 operation. But regardless, the point is, you don't wanna run at 100% speed or close to it 24/7. The lower you can get away with, the better. Everything else is pretty much as Wipeout2097 said. |
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The bios for R9 290 requires 2 conditions (if I remember correctly): 1. HynixMFR or Elpida 2. Under 70% ASIC If you got HynixAFR and are above 70% ASIC than there's no point doing so. It was written somewhere here: https://litecointalk.org/index.php?topic=12830.0 if you care to read through all the pages  |
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I use Sgminer, not Cgminer so i dont know if its different. When i use vector 4, i get the very high WU for 10 minutes and a 30mhs bump, vector 2 work bad, i get a big (100-150) drop in khash and vector 1 seem average. Also it is a scrypt-only setting in cgwatcher.
There's no difference in that regard, vectors does nothing (I am also running sgminer 4.1.0 and don't even have it set up). I didnt specify my settings further because volt is locked, stock bios doesnt let me ajust it. I heard somewhere its 1.225v or something like that. And i have (edit:) NOT touched core, which is at stock 1ghz, changing it to reference didnt fix the issue but i will try again (i have barely touched clock settings, except i been using gpu tune 20).
You should be able to change the voltage using MSI Afterburner or Trixx (Sapphires software). If you're going to use Afterburner than you need to check 'allow voltage control'. But since you haven't touched your voltage than it can't be the issue. Now i just set -w to 512 and vector to 1(i believe thats what is autodetected), it yield much lower khash (low 700s) with 500-600 wu and it just crashed after 20 minutes at stock (not reference) settings.
Now i will run your settings.
-w 512 doesn't matter to R9 290 because the maximum size you can set for it is 256. You can confirm it by seeing the binary file that is being created and see that part of its name will contain w256 and not w512. Anyway, did you check the temperature of the VRAM? |
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First of all your WU at the first few minutes (or even hour) isn't indicative of anything. It usually does start high, especially after a system reboot but will average out after a certain period of time (say a day) giving you its real value.
Second, from cgminer readme file, the vectors variable does nothing when it comes to scrypt mining.
Third, since you can't mine for more than a day (from my understanding), you can't possibly know what increases or decreases your WU (because it's an average value).
Now, you haven't specified your core clock speed nor if you have undervolted (if you have than restore volts to stock settings), so I'll type the settings I'm using for you to try since you got Sapphire Tri-X and those, if memory serves, come with HynixAFR memory type (thus our clocking speeds should yield same results).
Try: gpu-core 1015, mem-clock 1250, tc 20481, xint 400.
P.S. How did you come up with that TC value of yours? Usually what works best for most people is TC value equal to shaders*n+1 or in the case of R9 290: 2560*n+1.
Anyway, artifacting and driver crashes are usually caused by misconfiguration of your mem/core clock in relation to the voltage and high temperatures (I doubt the latter since you got tri-x but it can't hurt to check the VRAM temperature).
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I have two r9290 based rigs. Both required the same amount of system RAM as the sum of the RAM in all the installed GPUs, or in other words, if you have 2 r9290s each with 4 Gb of RAM, you will require 8 Gb of system RAM. This is due to the usually high TC value the 290s require to reach their full potential. All my 290s are hashing between 870 and 890.
In the other hand, Gigabyte R9 280x GPUs can get by with only one Gb of system RAM per GPU, due to the fact that those GPUs TC sweetspot is usually around 8192.
I have 7 gigabyte R9 290s in 2 windows rigs. You MUST run 8gb RAM to get them going full speed. I had 4gb and they limped along. You can't turn up the TC or I without issues otherwise.
What the... I got 2 rigs with 3x R9 290 in each and each rig got only 4GB RAM and I'm hashing at 900KH/s (can get higher with higher core speed) with xint 400 on Windows. Same here, I have a 4x Gigabyte 290 rig and it's running on 4GB ram. It gets ~900KH on scrypt and 450KH on vertcoin, but trying to run 2 GPU-threads will crash it. Yea, R9 290 doesn't play well with -g 2. |
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I have two r9290 based rigs. Both required the same amount of system RAM as the sum of the RAM in all the installed GPUs, or in other words, if you have 2 r9290s each with 4 Gb of RAM, you will require 8 Gb of system RAM. This is due to the usually high TC value the 290s require to reach their full potential. All my 290s are hashing between 870 and 890.
In the other hand, Gigabyte R9 280x GPUs can get by with only one Gb of system RAM per GPU, due to the fact that those GPUs TC sweetspot is usually around 8192.
I have 7 gigabyte R9 290s in 2 windows rigs. You MUST run 8gb RAM to get them going full speed. I had 4gb and they limped along. You can't turn up the TC or I without issues otherwise.
What the... I got 2 rigs with 3x R9 290 in each and each rig got only 4GB RAM and I'm hashing at 900KH/s (can get higher with higher core speed) with xint 400 on Windows. |
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The only legit ASICs out there right now are Gridseed and they offer better KH/w at the expense of worse KH/$.
The ROI for gridseed ASICs isn't there yet. They're going for $300 for 300-400khs. An R9 290 goes for under $600 and delivers over 800khs. Would the advantage for them be on wattage or that you can gain some efficiency by chaining 20+ of them to a single rig? There's no added efficiency if you chain them together. The only advantage they offer right now is power consumption, which would be something to consider if you're living in an environment with limited electricity - that way you can get more KH for your W. But as you said, the ROI isn't there yet and in cryptocurrency, investing in hardware with long ROI is suicide. |
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update time - didnt have time to look at it yesterday - but just set it all up again and BINGO seems to be working with no HW errors.
hashing @ 2.58 currently with WU @ 2.4 so some work to do....
for info anyone who is having problems with this - xintenstiy is KING....
and to add it to your BAT file its --xintensity
Starscream - you are a star - with your info and google i seem to have found the solution - THANKYOU
but F@ck me these 290 are LOUD!!!!
any tips on quieting them down?
Shove them in the farthest corner of your house ^^ They seriously are loud (at least the reference ones), reminds of those hot air hand dryers you often see in public restrooms lol. |
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I did include in my calculation the reject rate I got here and what I usually get on other pools (in CM and SG I get 5%~ reject with -i 18, 3%~ on hashcows and MC and 0-0.3% on Waffle).
Just going to let you know one thing: If you see 0-0.3% on Waffle, they are probably lying to you on Stales by marking stale shares as valid (which doesn't impact earnings at all on a non-PPS payment method, since everybody is getting lied to, and it actually benefits people with bad setups over people with proper setups). This was a very common activity on Bitcoin pools in the getwork days to make people think they were performing better than competition. The only way you'd get 0-0.3% is if they are 100% on Auroracoin and Litecoin, and even then it's EXTREMELY unlikely unless you're running low intensity and have a basically direct connection to the pool. 0.3% reject rate is literally impossible to achieve on an Scrypt pool on high block rate coins due to how intensity works and the frequency of blocks. If the pool is outright excluding low difficulty coins, they are not making you as much money as they could just for the sake of prettier stats. As stated previously, ScryptGuild applies heavy penalties to low difficulty coins, fully expecting a big spike in stales when it mines them. Getting a 5-9% stale on a coin which has been penalized 10% for it's low difficulty still makes it more profitable than the alternatives. Waffle is a rather conservative auto switching pool and they do exclude low difficulty coins from my understanding. Yes I know they don't make me as much as I could be making hence why I am not using them. But regardless, I wouldn't go as far as saying they are lying. Edit: I did type in my post that your pool, according to my results, was 2nd highest in profitability. |
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For $15,000 you can buy 7 of these for 70MH/s or one of these for 100MH/s. Lol. Both of these websites are most certainly a scam, especially the latter, which was infamous in the BTC ASIC scene for scamming a lot of people. The only legit ASICs out there right now are Gridseed and they offer better KH/w at the expense of worse KH/$. |
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Load balancing is just a waiting connection to all pools in your pool list. Work is then round robin rotation based on pool work quota, meaning each pool simply takes a turn. But there are also other factors in the work quotas, a disconnect will reset the pools quota, and I believe it adjusts quota based on rejects too.
I used to run load balancing between two servers and it was never 50/50, even over a long period. If you want to measure pools correctly, the load balancing isn't going to work. You'll have to setup a separate cgminer instance for each pool, preferably with identical performing card for each pool.
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I've been mining here for 8hrs now with my 14 MacBook Pro laptop setup. I get a total of 14KH/s. I'm not seeing correct numbers on the site. I get an accepted share every 45 minutes, but sometime the hour stat shows I didn't. This site is broken. I'm taking my hash elsewhere.
You already told that joke.... |
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Hmmm....it appears that Cudaminer may not have been the culprit after all. I am also seeing 25% rejects at the moment...
Well, I'm connected to EU and ATM I am sitting at around 2-3% reject. Try to trace your connection. |
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You guys with high rejects need to look into running sgminer 4.1 via windows or BAMT. If you run g 2 with xintensity it will cut your stales in half.
Edit: across my rigs, I have 0.7% stales.
I run sgminer 4.1 on windows with xint (111 = -i 18~) and R9 290 doesn't work well with -g 2. Don't post a reply based on false assumptions next time. Frankly at this point if you aren't using sgminer you are mining wrong.
Not that it applies to me, but this is pure bullshit. |
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