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    GPU Mining A couple of questions after my first solid week of mining.

    December 23, 2017

    GPU Mining A couple of questions after my first solid week of mining.

    A couple of questions after my first solid week of mining.

    Posted: 23 Dec 2017 05:39 AM PST

    Two weeks ago I decided to get into the crypto/mining-scene.

    Last week I ordered my components along with 2 gtx1070Ti's. I went for the TI's for the following reasons:

    • Should I not enjoy the hobby, I got some people who'd I'd be able to sell a card to;
    • Should I not enjoy the hobby, I could install one of the cards into my own desktop and be set for gaming up untill my retirement or so;
    • Energyconsumption in mind, nvidia seemed most interesting to start off with;
    • I had zero experience with OC'ing, and the internet told me nvidia were the most 'straight forward' cards to OC;
    • everything else was practically sold out at local dealers

    Last friday I fired it up mining ethereum. I chose ethereum because while getting informed, ethereum was one of the first mentalities I could fully-ish get behind as a project. started off using ethminer directing it to the ethermine.org-pool. I mined up to the first payout to see how and what. After this great success I downloaded zec-miner and joined the flypool and started mining zcash. Different algo, different OC settings and different resource-usage. Interesting stuff to monitor while learning the big-ass world that seems to be crypto. At this point it's probably safe to say noone will be getting any second-hand GPU's from me and should I want to game till retirement I got to get another card.

    That being said, there are still some things i'm 'strugling' with. For clarity I'll be deviding these things into different aspects.

    • 1) The mining itself

      • a) Am I correct in thinking miner-software isn't coin specific? As long as it's the same algo I could just point any <insert-algo>miner to any coin-pool an let it do it's thing right?
      • b) Etherminer and zec-miner seem a bit limited in their options. Are there any miners out there which are highly customizable? I'm thinking in the lines of extra info you get while running the cmd and logging of certain events and data from the proces.

    • 2) Hardware

      • a) I'm going to get three more cards. I'm thinking gtx1060's. To stay in the nvidia range for ease, the earlier mentioned power-considerations and the price. I went for msi's on the 1070's mainly for availability at the moment of buying but it seems I've got more choice in the 1060's. Are there any considerations to make when working with different manufacturers when overclocking and such?
      • b) I'm going to need some risers. But no local shops (rl or online) offer these. Are there any Western-European redditors who happen to know a reliable place where to get some? I've found a couple of places but I have zero experience with this hardware, so quality-wise I have no idea what could be going on. Any input on this would be greatly appreciated.
      • c) Does anyone use like some sort planned downtime where they shut down the miner just so let it stay off for a while? Or are gpu's comfortable with just going 24/7?
      • d) I don't see the link between (under/over)volting and powerlimit. You can get the powerconsumption down with PL so why the volting?

    • 3) Coins

      • a) At the moment I have payouts from both ethereum and zcash. I also have a bit of ltc which I bought to check the workings of that aspect. Which are three wallets already. I'm using the core-client for all of them but that's starting to eat away at my hd. I'm getting a nano ledger soonish for the bigger coins. But that wouldn't help with smaller and newer coins. I know a paper wallet is the most secure option. But I'm looking for something I could use on a daily-ish basis without having to wait a couple of hours before the sync is completed(this is mainly for ethereum). Wallets like Exodus,Electrum or Jaxx seem a decent solution until I get the ledger. But it's hard to find user-input which isn't either devestating to the software or which looks payed/hacked to give a positive statement. How do you guys handle these sort of things? Certain types of wallets for certain needs?
      • b) I didn't sign up for bitfinex because I wanted to hold off on that part untill I got to that point. So, obviously, when I'm nearing that point they go for the invitation-only platform. I'm not looking to trade fiat, certainly no large amounts. Just wanted a place which offers more coin than fe gdax. A place where I could get to know the 'trades', ha. But just like with the wallets it's hard to find input.
        I know I could just set up an account somewhere and look for myself but I don't feel comfortable with the idea of signing up, wanting to do something but first needing to send in a copy of your id, drivers licence, a picture of you and your id/drivers licence, a lock of hair and a stool sample. This is an attitude not just limited to exchanges, but internet in general. I'm ok with the sample in most cases, but the rest is too much personal information for me 'just to check it out'. Any input on this would be greatly appreciated as well.
      • c) When using the ethereum wallet Malwarebytes informs that it's blocking websites from various ip addresses. I've added an exception for geth, but could someone tell me what exactly the problem is with geth and systemprotectionsoftware? I don't seem to be having this issue with the ltc or zcash wallets.

    I know the 'coins'-questions could be, and they will be, asked in more specific subreddits. But I can imagine your basic miner doesn't specifically needs the plaftorm with the best high-level features and whatnot that a trader needs. I'm just keeping it here to ensure I'm getting a miner's perspective on the matter.

    Anyway, thanks for the read. Have an excellent day.

    Edit: I do not understand the Open / Solved Flair. Why does it get instamarked when I created the post?

    Another Edit: I noticed I wasn't running latest version of zec-miner. Getting latest version solved the functionaly question

    submitted by /u/ElTabacoDelTigra
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    Proof of Stake

    Posted: 23 Dec 2017 02:29 AM PST

    I have just spent the last week excitedly researching gear to build my first rig, and was planning on mining ether, but just started reading about the potential move to Proof of Stake. What is everyone's thoughts on this concept for other coins? I wanna start mining, but doesn't this seem like the beginning of the end for gpu rigs?

    submitted by /u/sonicsmith
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    Looking for some help setting up an old amd card

    Posted: 23 Dec 2017 08:13 AM PST

    I managed to get a 5850 really cheap, and ill run it with basically no costs. I started an old claymore miner(11.1) for equihash algo and I was getting 5 h/s which is extremely low. My question is can I increase the hashrate?

    submitted by /u/BazsiBazsi
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    New Rig, please review?

    Posted: 23 Dec 2017 08:10 AM PST

    Newbie here, currently reading the links on the sidebar, figured I will also ask here in the meantime.

    I have an old pc that is sitting unused right now so thinking of using it as a mining rig. Is it feasible?

    1) Motherboard: Gigabyte-z68x-ud3h-b3 2) CPU: I5-2600K 3) Ram: 16GB 4) HDD: SATA (3GB/s)

    I am going to buy 2 new GPUs (whenever I find them in stock) to start.

    Confused between AMD or Nvidia. I currently have a R9-280x that I can stick into this for the time being.

    Is NVIDIA better or AMD?

    submitted by /u/presler
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    An early Xmas gift to myself :D so excited about my first rig!

    Posted: 22 Dec 2017 12:08 PM PST

    Thank you GPU mining community !

    Posted: 23 Dec 2017 07:56 AM PST

    https://imgur.com/a/AZQvd

    This is what I wake up to with my morning coffee. I came here asking a dozen questions as a green horn and everyone here has been patient and professional with their advice. I now have 2 frames and 1 gaming system creating passive crypto investments. I couldn't of done this without your support!
    I hope over time I will be able to offer my 20+ years of IT infrastructure Data-center experience along with my growing experience in mining back to the community.

    I want to give a special thanks to gravelghost for helping me navaigate some very frustrating configurations I endured with the prime Z270-A!

    See you all around

    submitted by /u/Tekviper9
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    (not joke) Has anybody tried putting a small rig in a mini-fridge?

    Posted: 23 Dec 2017 07:23 AM PST

    I know it's a bit of a giggle but I'm truly curious about this. I've been watching a lot of "build your own rig" and "how to get mega-hash rates" videos on YouTube. The subject of heat and thermal problems comes up over and over.

    Has anybody ever tried putting their rig in a mini-fridge, like those in a hotel, or beer cooler? I know you'd have to figure out how get some cables in and out of the unit without electrocuting yourself or causing a short circuit, and you would have to figure out how eliminate problems from condensation (water) which would be tricky, but I really wonder if it would help with the stability problems and GPU card lifetime reduction problem that come from overclocking. Perhaps it would save you at least from having to use an army of fans running so fast that your ears suffer?

    submitted by /u/vengeful_bunny
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    Advice on power connectors

    Posted: 23 Dec 2017 07:20 AM PST

    So me and 2 friends are going to build some mining rigs. I am currently in the research phase to get the most optimized build.

    I have calculated hashing power, ROI etc. for a number of cards and coins. After doing this i looked into risers and connectors. Here is the problem. Some risers I see people using are Molex or 6pin. What do you do if the GPU requires more juice than that?

    Basically. What is the most optimal way of powering your GPU's? Why is everyone using risers with Molex / Sata? They surely cant handle the throughput of a big GPU. Why not just plug them directly into the PSU?

    Thanks

    submitted by /u/Chillypill
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    Nicehash showing at the top of whattomine for me - is this real life ?

    Posted: 23 Dec 2017 06:38 AM PST

    Hello,

    Calculating the profit using whattomine for my 6 x RX 570 4gb. Sometimes (a lot of times), nicehash shows at the top.

    Considering the risk of being robbed by nicehash, what do you guys think about using nicehash now ?

    submitted by /u/glinskibrazil
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    Wholesale GPUs prices?

    Posted: 22 Dec 2017 07:19 PM PST

    Is anyone getting wholesale prices on GPUs? I'm looking at picking up >100 units for a small mining startup.

    Any thoughts/comments?

    Kind regards,

    submitted by /u/Sound58
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    What's your opinion on combining torrenting and VMs in the mining rig?

    Posted: 23 Dec 2017 04:37 AM PST

    Most people tech savvy enough to build and run a mining rig probably already have some server running 24/7 anyway. What's your opinion on combining them on the same hardware?

    submitted by /u/reallyserious
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    NemosMiner VS MultiPoolMiner, which one better?

    Posted: 22 Dec 2017 07:09 PM PST

    Using bunch of GTX 1070 Ti.

    It seems that the NemosMiner were specifically tune for NVIDIA. Does it out perform MultiPoolMiner?

    submitted by /u/baskice
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    My experience with Vega 64 mining using XMR-STAK and differing worksizes (with results)

    Posted: 22 Dec 2017 09:49 PM PST

    x-posted from r/moneromining/

    With all the digging I've done online, I've yet to come across a thread with some actual results for comparing hashrates when using different work sizes, so I figured tonight is the night.

    For reference, I am using 4 Vega 64's, with settings taken from http://vega.miningguides.com/ albeit with slightly higher mV settings to try to combat hashrate drop. I'm also using intensity of 2016 on thread 1, and 1800 on thread 2, which is why you will notice that the hash rates in the thread 1 column are higher than the thread 2 column.

    Since I started mining last week, I have been using worksize 16. No real particular reason for it, I just that I figured that my GPU's were good enough for a higher worksize, but I decided to do some actual testing to see which worksize is best.

    To start off with, I ran 2 of my GPU's (1&3) on worksize 8, and the other 2 (2&4) on worksize 16. After 15 minutes, these were my results:

    https://imgur.com/a/4QM1Z

    GPU's 1&3 (worksize 8) 1995 h/s

    GPU's 2&4 (worksize 16) 1956 h/s.

    To eliminate variances between the cards, I decided to run another test, this time reversing the order, and using worksize 8 on cards 2 & 4, and worksize 16 on cards 1 & 3.

    Results: https://imgur.com/a/halk9

    GPU's 1&3 (worksize 16): 1974 h/s

    GPU's 2&4 (worksize 8): 1951 h/s.

    So far, GPU's 1&3 had a 21 h/s higher hash rate when using worksize 8, but GPU's 2&4 had a 5 h/s lower hashrate when using worksize 8. So nothing definitive so far.

    Now lets really have some fun, and try worksizes 4, 8, 16, and 32.

    To start with, we will use the following:

    GPU1: Worksize 4

    GPU2: Worksize 8

    GPU3: Worksize 16

    GPU4: Worksize 32

    This time we got some rather interesting results.

    https://imgur.com/a/bI0Jp

    GPU1 with worksize 4 1939 h/s

    GPU2 with worksize 8 1909 h/s (A drop of 48 h/s from the previous test when it was on worksize 8)

    GPU3 with worksize 16 1972 h/s (same hashrate as previous worksize 16 test)

    GPU4 with worksize 32 1881 h/s.

    Some surprising results there, specifically GPU 2 having such a large drop from its previous worksize 8 test. GPU 3 had the same hashrate as the previous time it tested at worksize 16.

    Now let's reverse the order.

    GPU1: Worksize 32

    GPU2: Worksize 16

    GPU3: Worksize 8

    GPU4: Worksize 4

    https://imgur.com/FUCdTK6

    GPU1 with worksize 32: 1898 h/s

    GPU2 with worksize 16: 1966 h/s

    GPU3 with worksize 8: 1996 h/s

    GPU4 with worksize 4: 1920 h/s.

    So far this leaves us with the following averages:

    GPU's with worksize 32 (2 tests) 1889 h/s

    GPU's with worksize 16 (all 4 tests) 1966 h/s

    GPU's with worksize 8 (all 4 tests) 1966 h/s

    GPU's with worksize 4 (2 tests) 1929.5 h/s

    One thing I did notice is that GPU3 seemed to consistently outperform the other 3 GPU's. So I decided to run GPU's 1, 2, and 4 at worksize 8, since they seemed to test best with that work size, but put GPU3 at worksize 32, since that worksize tested the lowest amongst all GPUs. So can the best GPU still outperform the other cards with the worst worksize? Let's find out.

    https://imgur.com/a/An83a

    Ah. Looks like GPU3 was no match for worksize 32, as it only managed 1897 h/s with worksize 32. However, the other 3 GPU's seemed very happy with worksize 8, as they pulled in 1970, 1934, and 1995 h/s respectively.

    So altogether, here were the totals & averages for each worksize, regardless of which GPU the test was done on:

    Averages:

    Worksize 4: 1929.5 h/s

    Worksize 8: 1966.7 h/s

    Worksize 16: 1966.3 h/s

    Worksize 32: 1892 h/s

    So what does all this mean? Well, from my limited sample size, I can suggest to stay away from worksize 32 for sure, and probably worksize 4 as well. As far as whether to choose worksize 8 or 16? I'd say it doesn't make a huge difference. Worksize 8 had a little more variance with my GPU's, as there was an 87 h/s spread between the high and the lowest result, whereas worksize 16 resulted in just a 26 h/s spread between its high and low.

    Going forward, I will personally use worksize 8, and hope I get the high results consistently.

    I hope this post helped some people see some actual results with the differing worksizes.

    Tl:Dr use the settings from http://vega.miningguides.com/

    submitted by /u/alwaysmyfault
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    Explomos pci-e risers, anyone try these? are they any good?

    Posted: 22 Dec 2017 11:59 PM PST

    Cant get 3rd gpu to mine zencash, pls help^^

    Posted: 23 Dec 2017 03:23 AM PST

    yeah, so my currently setup was win10, ASUS PRIME Z270P and 2x zotac 1060 3gb in the normal pcie 16x slots, everything works great till there, but when adding a 3rd gpu, delete and reinstalling nvidia drivers to actually get it detectetd, when i start ewbf zencash miner i get this log : https://imgur.com/a/iOuFA
    4g decoding enabled in bios, newest bios isntalled, pcie speed changed to gen1 etc.
    nicehash benchamring also seemsto shit itselfs when starting, but haven't finished it yet, also willl try some other configurations etc. to exclude that the newest card is broken and what else.. if somody would like to help my i would be really happy...

    submitted by /u/blabliblub3434
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    vega for cryptonight

    Posted: 23 Dec 2017 02:22 AM PST

    I spent the past few days looking for 8x Vega 56 or 64 in one place. Amazon: not available or $1200+ and limited to one card eBay: mostly used, no 8 cards from the same seller. A bit of a hassle to bid for different cards and hope to get them Newegg: limited to one card and commercial account is not a solution Malabs: requires a lot of verification and bank details and is a hassle Alibaba: contacted some with no reply and dot trust them as eBay or Amazon

    Help!

    One more thing, is there a programming magic to make 1080ti hashes the same as Vega for cryptonight? Or is it the HBM2? They are available and would be much easier to get

    Thanks

    submitted by /u/Maa_47
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    ASRock Z370 Taichi motherboard with 3 GPU's. Will it work?

    Posted: 22 Dec 2017 11:07 PM PST

    I want to use this MB for gaming with 2 Nvidia cards in SLI and an extra card in the third slot. With 2 cards in SLI the third slot cannot be used according to the manual due to Nvidia software. But for mining can I just turn off the SLI in the Nvidia software and get access to all 3 slots for mining? That part is not clear.

    submitted by /u/Adonlude
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    4 Zotac 1070 ti's on 750w PSU with lowering psu usage on cards safe?

    Posted: 22 Dec 2017 10:49 PM PST

    title

    submitted by /u/Garroxx
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    Building a mining rig with AMD GPUs

    Posted: 22 Dec 2017 10:36 PM PST

    Simple, transportable mining frame?

    Posted: 22 Dec 2017 10:34 PM PST

    I'm entering what will hopefully be my final semester of college, and I'm looking to take advantage of free electricity until I graduate, so I'm looking to build a rig specifically dedicated to mining crypto. I really need help with a frame. I'm looking for something fairly inexpensive, but that also doesn't require too much modding. I don't have access to power tools, and need something that's transportable via mid-size sedan, since I'll eventually have to bring it home from school. I'm going to start small (2-3 GPUs to begin with, but will look to expand to 8-12 by the time I graduate). Stackability would be nice in case I do expand into multiple rigs. Any advice would be greatly appreciated. Thanks!

    submitted by /u/Csakstar
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    Can someone explain this? I mined Vertcoin using CC miner using a GTX 980 and it read 22-24 mh/s. I’m a total noob at mining, by the way. I read that one click miner would give me better results and more hash power, so I just ran it with all three addresses. What does 368.94 GH/s mean?

    Posted: 22 Dec 2017 10:01 PM PST

    Corsair HX1200i 4 or 5 GPUs?

    Posted: 22 Dec 2017 05:07 PM PST

    Hello, I bought a power supply and I chose Corsair HX1200i, it has 6x8 pin slot(I know that one is for cpu), but I got only 4 cables for GPUs. It really scares me and I dont want to break the whole power supply. Can I connect 5 cards? Thx

    Here is screen of his back - https://ctrlv.cz/5D2s

    submitted by /u/Hrondor
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    Swap 2x Rx Vega 64¿

    Posted: 22 Dec 2017 06:46 PM PST

    Hi, im from Germany and I Pay 0.2,€/0,24$ for power. Today I saw, that you get more than 750€ for a used rx Vega and there is my question: is it useful to swap all the Vegas out for some Rx570 or 1060/1070?

    submitted by /u/F0t0graf_1337
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    Titan xp, artifact when mining

    Posted: 22 Dec 2017 06:31 PM PST

    So, i have asked about this before, but when i mine there seems to appear a random artifact in the middle of my screen. Temps are okay, my hardware is good, drivers are up to date. Any ideas? Someone said to me that i should look up at the intensity im mining with, but i dont know anyhting about that. Also been told to contact the seller about whether i should return the product. The card is 2 months old. Any ideas??

    GPU:Titan Xp, EVGA 1070 FTW MOBO: Asus Z270F PSU: EVGA 1000 watt supernova OS:windows Risers: dont have Mining software: Awesome miner OC specs: Factory settings Gpu-z says core 1720Mhz, memory 1377Mhz

    submitted by /u/TheRealJNXD
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