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No reason not to go with Nvidia if you don't mind the extra out-of-pocket cost. AMD still has the advantage in cost/hash, but Nvidia is definitely in the game, especially for ZEC and skein. My MSI GTX 1080 Gamining X gets 550 H/s @ 180W on ZEC. I got it for $509 after rebate. I think the 1070 is the sweet spot as far as cost-per-performance.
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Hello!!
I am staring to build mining rig there is one thing I stock on,
The cables that came out of the psu have connection only for 2 GPU
what do I need to buy to unable connect 6 gpu?
Thank you for your help!
If that PSU has only 2 cables for GPUs then it probably can't handle much more. High capacity PSUS tend to have enough cables. Thank you for your response This is the psu. https://www.amazon.com/gp/product/B00M2UINDC/ref=oh_aui_detailpage_o01_s02?ie=UTF8&psc=1Is he recommend and is he good? Thank you! The 1200W PSU you linked has 4 PCI-E connectors. Some PSU's like EVGA G2 and P2 come with a second 6+2 pigtail connector on some of the PCI-E cables son you can connect to another PCI-E power with the same cable. You can also use Y spitter adapters and the sata ports for PCI-E power with an adapter. No matter which connector type you use, it's important to never use more than two VGA connections per cable, with three the cable will start to get warm and with four you WILL fry the PSU, the cable or both. |
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I should preface this post by saying that I've lurked here a while, and searched/examined many of the threads in this forum, trying out the different settings/driver version combinations that people have provided.
That said, no matter what I try, I keep running into instability with my rig.
My configuration is as follows:
- Windows 10
- 8GB system memory
- Asus H270-Plus
- Intel Pentium G4400
- Ver 007 Risers
- 6x XFX RX 480
- EVGA 1300W PSU
I have 6 cards, but I can't get even 3 cards to run stable. I've left them stock (but they are overclocked out of the box, being non-reference XFX). After running Claymore miner in dual mining mode for ~3 minutes, the 4th card's hash rate goes to 0, the display driver "crashes" (a windows error notification says as much), and Claymore Miner restarts. I have to restart the machine at that point.
Even running only 2 cards at a time, I had the machine blue screen/reboot overnight 7 hours in to the mining session.
The BIOS is stock, and I'm using all of the recommended settings in the Claymore miner thread (env vars).
I've tried Catalyst 16.7.2, 16.7.3, and 17.4.4. AFAIK I cannot try 15.12, as it doesn't support Polaris cards (I tried and it didn't detect my GPU).
I've disabled Intel VT-d and virtualization technology in the BIOS. I've set all PCI-E lanes to Gen1 (I tried Gen2 as well, but nothing changed).
Anyone else here want to share their successful configuration for 4+ RX 480's on Windows 10? I'm all for trying a different OS (ethos, mineros, windows 7, ubuntu) if anyone found that that solved their issues.
I assume virtual memory to at least 16 GB and preferably more? I found Windows 7 to be much more stable than 10 for mining. Too much going on in the background in Windows 10. The problem with Windows 7 is it won't support more than 4 cards out of the box. Here are some things you can do in Windows 10 to help with mining: https://www.youtube.com/watch?v=baCCjFU-4BkLinux is also much more stable than Windows.. You could try smOS, which is a Linux based mining distro with configuration done through a web browser. BBT has a walkthrough video on how to get started. https://www.youtube.com/watch?v=PAHWMK78GagethOS is another good option for a Linux based solution built for mining. Ubuntu is good too, but you will have to do all the driver and mining downloads and configuration on your own. There are guides online on what you need to do to get started. |
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Are nVidia and AMD cards both ok? I recall nVidia being a complete non-sequitur back in the day, and seems like they are still inferior to AMD stuff today.
The r9 390s are what, like 2 years old? So basically you are saying get used RX 480s instead of new older ones?
Didn't really even think of that. I suppose I feel like used ones get beaten up so hard that their failure rate is elevated. Or is that not really too much of a consideration?
Edit: I think the other reason I'm into buying new is that I can just get a set of all the same model card. Or are different models relatively easy to make play well together?
Nvidia cards are doing much better than back in 2014 and mining support for the cards is much better as well. AMD cards are generally considered better for ETH, but like in the example I gave, the time to get your money back on the card is less with the 1060. The RX 4XX/5XX gets ~ 30 Mh/s, but uses more power than the 1060. At an average of $250 a card, it takes 48 days to get your money back compared to 45 days for the 1060 https://www.coinwarz.com/calculators/ethereum-mining-calculator/?h=30.00&p=120&pc=0.10&pf=0.00&d=606599693230589&r=5.00000000&er=0.09769337&btcer=2636.14540000&hc=250.00Used cards are always a risk as they come with no warranty, but if you buy them on eBay or can test them before you buy, there is some guarantee the card will at least be working when you get it. |
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Thank you for the reply guys, I also believe 99% it was fried by my mistake, I will try to RMA tomorrow and hopefully they will accept it. At first I thought the usb 3.0 only handle the data transfer, whereas the power riser cable will handle the electricity, but I was so wrong.
The PCI-E 1x slot has 12v and 3.3v pinouts connected to it. http://www.interfacebus.com/Design_PCI_Express_1x_PinOut.htmlI use 6-pin risers which have a voltage regulator that will prevent spikes in current from damaging the card. I don't know if they would protect against a short however. I checked the outer pins on the USB cable that connects to the riser from the 1x PCI-E slot with a multiimeter. There was 3.3V coming from the motherboard. |
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If you switched the riser to one that is working and the GPU won't work in another rig, then you most likely fried it. Always be very careful when plugging in risers, never do it in a hurry. When changing risers I turn off the PSU until I am sure they are connected correctly. There is a member here that does GPU repair work. You may want to contact him. https://bitcointalk.org/index.php?topic=1746977.0 |
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Hello everyone!
I have an offer for rx480 80 USD
and Rx 470 70 USD
Can you please tell me what gpu is better to take? ( if we take in conclusion all power consumption + hash power )
Or you recommend me a different GPU cards? ( nvidia? )
Thank you for your help!
Either you are damn lucky, or damn lucky. Do you know that there are no RX 4xx or RX 5xx available nowadays?! You would probably find an RX 470 for USD$170! If I were you, I would grab them both, as they are the better in the business, especially Rx 470. Regarding which one is better, I think RX 470 is, because it gives you the best hashrate (28-29.3 MH/s, if you can tweak it properly) with less power consumption. RX 480 is good, but consumes much more power — this matters if you pay the bills. I can check with my distributor if he willing to sell you some of his cards if it relevant for you... Sounds too good to be true. If it's legit, get both. Otherwise it sounds like a scam, especially since the RX 4XX's are no longer in production. |
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Could it be that tight memory strap mods used for ETH mining are not working for ZCash?
Quickly tried to use Claymore Zcash miner on my RX570 mining farm for the lulz... and everything crashed within seconds. What's the catch? Or do I just have to lower intensity?
EDIT: same thing happens if I try Optiminer. After a few seconds of mining, miner freezes, PC reboots.
Anybody care to comment? I have Asus RX 480's 8GB with Samsung memory and a basic bios strap mod of the 1750 MHz over the 2000 MHz timings. There was a ~ 5 MH/s improvement for ETH and for ZEC ~10 H/s per card. The crashing after launching the miner sounds like not enough virtual ram set. I use 24576 GB. |
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I recently tried setting up another mining rig but found out all the profitable GPUs are no longer available at all local stores in my country. According to the distributors, people have been buying GPUs in BULK since April 2017.
At this rate, can GPU mining still be profitable long term? 1 year from now? 3 years from now?
I think the decentralized nature of GPU POW mining is here to stay for the forseable future. There will be peaks for sure, just like the last time there was a run on GPU's back in 2014, until ASIC's moved in to take over Scrypt. However those that stuck it out and kept mining are now benefiting from having done so. |
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Yes, those cards are all supported by ethOS. GCN is the architecture name of the current series of AMD GPU's. GCN 3 referes to generation 3 series cards. The current series are Polaris GCN 4 and Vega will be GCN 5. https://en.wikipedia.org/wiki/Graphics_Core_NextIf you are going to Bios mod the cards it's a good idea to plug them in indvidually so there is less chance you make a mistake. I find it easier to Bios mod cards in Windows as there are more tools available. There is no need to install the cards individually to install ethOS. All the individual card mining configuration is done in ethOS and the miner configuration. |
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Yes, you can mix cards without a problem as long as the cards are all supported by the drivers you install e.g. on Windows the current Crimson ReLive drivers support all GCN and up cards, so you can mix any of those together on the same rig. On Linux (ethOS and smOS), the current AMDGPU PRO drivers only support GCN 3 and up cards. You will obviously need to set diffrent configurations for the diffrrent cards, so it's simpler to use the same type of cards in a single rig. You can also run AMD and Nvidia cards on the same rig. I currently have RX 480's, HD 7850 and a GTX 1080 on the same rig without a problem.
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GPU's MODEL NAME: MSI GTX 1080 GAMING X 8G
VRAM: 8 GB
TDP: 70%
CORE/MEMORY CLOCK:2025-2037/5005
HASHRATE:545-565
MINER SOFTWARE: EWBF 0.3.3B
OS: WINDOWS 7 x64
Set memory clock to +500 Mhz and core clock +200 Mhz
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Claymore miner says it requires 16.3.2 for Fiji support
I don't have Fiji cards but as far as I know, that is the recommended driver. In the Readme it also recommends using the 15.12 drivers which don't even support the Polaris cards. The documentation hasen't been updated since the original release, which is common with most miners. The FAQ also mentions: - Is 15.12 driver mandatory?
Usually latest drivers work well. But there are some reports of people where they don't. So 15.12 is recommended. |
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The AMD Crimson Relive drivers should support both cards on Windows. I have a Pitcarin card in my rig together with RX 480's and I was getting similar reduced hashing outputs. What I did was connect the primary 16x PCI-E slot to the Pitacarin card's 1x riser and use that card with the monitor dummy plug. I then uninstalled the drivers in safe mode using DDU and reinstalled the latest 17.5.2 drivers. All the cards are working normal now.
Also I've found that the Claymore miner sometimes can change the order the cards are detected, so you need to make sure the right settings are applied to each card. e.g. my Pitcarin card will only take 1500 MHz for the memory clock at intensity 4, while the RX 480's can take 2100 MHz at intensity 7.
Fiji dosnt accept other than 16..3.2 so i need a way to make believe the miner that newer driver ar 16.3.2 The Crimson Relive drivers on Windows support all GCN and up cards: https://support.amd.com/en-us/kb-articles/Pages/Radeon-Software-Crimson-ReLive-Edition-17.4.4-Release-Notes.aspxRadeon Desktop Product Family Compatibility
Radeon™ RX 500 Series Graphics Radeon™ RX 400 Series Graphics
AMD Radeon™ Pro Duo AMD Radeon™ R7 300 Series Graphics
AMD Radeon™ R9 Fury Series Graphics AMD Radeon™ R7 200 Series Graphics
AMD Radeon™ R9 Nano Series Graphics AMD Radeon™ R5 300 Series Graphics
AMD Radeon™ R9 300 Series Graphics AMD Radeon™ R5 200 Series Graphics
AMD Radeon™ R9 200 Series Graphics AMD Radeon™ HD 8500 - HD 8900 Series Graphics
AMD Radeon™ HD 7700 - HD 7900 Series Graphics The Fiji Amd cards are GCN 3. My Pitcarin is GCN 1 and I use the latest 17.5.2 drivers on my rig with the RX 480's. |
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All Qt wallets, or just about, have a built in cpu miner for solo mining. You just need to to set gen=1 and genproclimit=<NUMBER OF CORES>, or -1 to use all available cores in the wallet config file. You are better off using an external CPU miner since the wallet miner is usually not optimized for diffrent CPU types and you can only solo mine with the wallet miner.
Can anyone name some (or five or so) Qt wallets? Take your pick: https://bitcointalk.org/index.php?board=159.099% use the same Bitcoin v0.10 or older code base. Don't expect good results though. On most the difficulty is too high to solo mine with the wallet. |
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All Qt wallets, or just about, have a built in cpu miner for solo mining. You just need to to set gen=1 and genproclimit=<NUMBER OF CORES>, or -1 to use all available cores in the wallet config file. You are better off using an external CPU miner since the wallet miner is usually not optimized for diffrent CPU types and you can only solo mine with the wallet miner.
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Hi
I have just modded the bios of my 4 gpus in order to start minig ETH.
Given the fact that my sapphire rx580 8gb nitro plus does not work with Radeon 16.9.2 driver (it is not detected) which driver do u suggest to use with my gpus. As far as I know
Radeon Drivers have a problem with modded and flashed bios except some versions such as 16.9.2 ... .
Thanks
Just use the latest Catalyst ReLive drivers. With a modded bios you need to use the pixel patcher to bypass the signature check after installing the drivers. https://www.youtube.com/watch?v=IAiScXPisAY |
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