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NEW SETUP. CARD SELECTION HELP.

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Hi,
My first rig is 6x 1070 Ti - 32 mhs Ethereum.

Planning to setup a 2nd RIG.

My vendor has given me few options.
Wanna try AMD GPU for a change.

Considering the fact that setting up a AMD and running it stable needs lots of work compared to NVIDIA.
please help me choose the right card.

Sapphire Rx 570 4gb
Sapphire Rx 580 8gb
Asus Rx 580 4gb
Asus Rx 580 8gb
Msi Rx 580 8gb
Msi Rx 560 4gb
Asus Rx 470 4gb Mining
Asus Rx vega 56 8gb
Asus Rx vega 64 8gb
Asus Rx 560 4gb

I am yet to finalise on the price on these cards.

RX560 gpus won't work after flashing

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Hi there,

I'm currently building my 6th rig and since the shortage of RX 580 cards in the market i decided to build a low-range RX 560 rig with 9 cards for a change.

So it's build and operational, but then it was time to update the bioses with mining timings and that's where it goes south.

I copied each rom with atiflash, used polaris bios editor and applied the one step memory fix, updated the bios, reboot and then windows reports the RX 560 card is not working properly... And not only one card, but all cards i updated.

So because of the GPU shortages, i have 3 different RX 560 cards. 2x Sapphire Pulse, 3x Gigabyte OC and 4x MSI Aero ITX OC, all 4 GB ofcourse. They all have different bioses and i modded each card individually. All cards have the same problem. If i reflash their original ROM, they start working again, but not with a decent hashrate.

The OS is a clone from one of my other RX 580 rigs.
I tried Polaris 1.6.4 and the latest 1.6.7.
I tried AMD drivers 17.11 (Crimson), which i found out are working the best on my other rigs, and the latest 18.2.3, but both have the same problem.

Anybody got any clue why windows reports the GPUs not working correctly after i flash a modded bios? I'm quite lost with this one. Please help.


ps. don't buy the Gigabyte cards. I found out they only have 14 compute units, while the Sapphire and MSI both got 16.

OpenCL error -4 cannot create DAG on GPU

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Hi.

I'm hoping someone can help with my first build. I have 8x RX 570 8GB Sapphire (7 are Micron and one Hynix). When I try to mine via Claymore, I get the following error:

GPU7, OpenCL error -4 (0) - cannot create DAG on GPU
GPU5, OpenCL error -4 (0) - cannot create DAG on GPU
GPU3, OpenCL error -4 (0) - cannot create DAG on GPU

If i try and mine with the cards individually, they work fine but not when all 8 are connected.



Thanks in advance for any help.

slower going from win 7 to 10

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I farmed on win 7 for about a month and was getting about 20,500 mhs. Upgraded the machine to windows 10 and now at a consistant 19,500 mhs. I really dont wanna change from the latest driver since this is also my VR machine. The driver im using works great for that. Is there anything else I can try?

Can i connect riser to PCI1 slot?

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My motherboard MSI Z170A has:

1x M2 slot
5x PCI-E slots
2x PCI1 slots

The 1x riser adapter doesn’t fit in PCI1 and I’m wondering if i cut the tab off to make it fit, would it work?

What do other people do?

gpu no display but powers on

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can get a 480 that doesnt display but powers on, any chance of working for mining?

Problem: Only 20 Mh on RX 580?

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I just build my first mining rig, with the following specs:

Intel Pentium G4400
Asrock H110 Pro BTC+
Kingston Valueram 8 GB RAM PC2666 (1 dimm)
6x XFX Radeon RX 580 GTX XXX OC+ 4 GB
Corsair RM1000x power supply
Thermaltake Case Core P5
64 GB SSD
Running Windows 10 PRO

One videocard was DOA, so i'm currently running with 5x RX 580 cards.

However, with stock settings the maximum hashrate i can get is 20 Mh ETH and 570 Mh/s Pascal in dual mining per card. In solo mining the ETH hashrate is the same. I read on this forum and online that most people have the RX 580 cards running at 25-26 Mh ETH out of the box and up to 30 MH with modded bios and tweaked settings. My setup doesn't even come close, and before i start modding these cards i want to be sure there's no problem with them.

20 Mh is far too low, right? Does anybody have a clue on what might be wrong? I have no idea why these are not running any better and don't know what to do next.

Please help.

My pci-e4 slot is damaged - can repair? See image

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I sent mining rig to repair shop because i had issues with ubuntu settings. Its come back and the pci-e4 slot pins are damaged (see image).

Shop swears blind it wasn’t them and I am always extra careful. Anyway, is it something that can be repaired? I can’t find any youtube videos for it.



What can cause a GPU to stop working + reboot system?

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I've fiiinallly managed to get my rig online with 4 GPUs :smile:
However, I've noticed that GPU2 will (after 5min) stop hashing and then within 2-3 minutes the system will reboot and bring it back online... then 5mins later it stops hashing and within minutes a system reboot again... it's a forever loop.

I saw the gpu working when I bought it so i know it's not faulty and I've re-applied the thermal paste and tried it again but it's not really made any difference.

My PSU's are 1000w each (x2) and with all 4 GPUs running they are running at 50% each so it's not a power load problem for sure.

I'm using the latest VER 008S powered risers and they are powered using 6pin direct from PSU.

How profitable Ethereum mining used to be? Your profits on Ethereum?

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I came to know about GPU mining in June/July 2017, through news about AMD and Nvidia selling many GPUs. I started mining in December. I was curious about how much I could earn by starting in June 2017 and came to know I'd mine about 0.25 ETH per day with 400 mh/s hashrate. Had I kept the coins, that would be about 6000-8000$ per month... That's quite astonishing. Anyone wants to share experiences on how much profit you made last year?

Found this info at:

https://www.quora.com/How-can-I-mine-1-Ether-per-day

Europemineshop.com

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Europemineshop.com is established global community of hardware engineers and blockchain enthusiasts with offices based in Europe & United States of America . Most of us used to mine bitcoin since 2011 and have cutting edge experience in efficient mining as well as expert knowledge in crypto currency mining machines and software. During the last years our community members spent much time reviewing the hardware by BITMAIN, BAIKAL and BitFury having tested their mining units, servers, coolers and large scale parallel computing software.
As of now we are proud to offer the variety of products and services for you:
We sell brand new proven and efficient mining hardware units;
We sell GPU mining units tested by our quality assurance team and ready to mine;
We sell brand new mining hardware;
We build, deliver and install custom scale mining “farms”;
We make technical research and conduct hardware tests of any mining hardware and provide exclusive, detailed reviews for press release and web content;

Mining with Windows 7 portable and virtual memory

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Hi,
I'm trying to use Windows Portable (created with Win2Usb) on a USB flash for my miner to get rid of Hard Disk (which consumes some Watts). The problem is that I'm unable to set virtual memory on Portable Windows. And claymore complains "cannot create DAG" if I don't set virtual memory.
My physical memory is 4 gb RAM. Is there a way to either:
-set virtual memory on Portable Windows for USB flash pen
-making Claymore mining software work WITHOUT virtual memory?
thank you!

Cloud Mining - The Definitive Answer

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Hi guys,

this is my first post here so please bear with me if I have overlooked some forum rules.
Anyways, I consider myself to be a kinda tech savvy guy, own some crypto coins, did some trading and have also built a mining rig myself. I am getting more serious about it right now and I am really thinking about using some cloud mining provider. Certainly, they can, in principle, be more efficient than any DIY mining rig at home.
However, I am really unsure about what to choose and if this really is the way to go. Here are some of my considerations and it would be really interesting to hear your opinion on it. ;)

1) Scam and Ponzis. I simply didn't jump into it because of a complete lack of trust from my side. Many providers promise a ROI that is just surreal. There is so much misinformation and contradicting information out there that I simply don't know what to believe. I am living in Switzerland and the crypto scene is becoming kinda big here. So I used some local companies for e.g. buying Bitcoin in the past although they have really high fees, simply because I trusted them more. Still, I haven't found a cloud mining company that offers the same level of trust and yet a competitive cost structure.

2) Future Proof. Mining (with proof of work algorithm) to me does not seem to be here to stay. It is simply too much of a waste of energy and not scalable. With Ethereum probably switching sooner rather than later to something else, others will follow. With a legit cloud mining solution I don't have the feeling I can recover my investment before major changes are happening. None of the cloud mining providers offer a credible solution as to how they are prepared for the "end of proof of work mining".

Finally, I talked to a guy in Zug (Switzerland) lately who is planning to launch a cloud mining service here that kinda addresses to above mentioned problems. But I think it's really just in the beginning phase since he could not (or didn't want) to give a lot of information on it. He mentioned that he wants to solve the cost problem by reducing imbalance energy of renewables in the power grid. This really is becoming a problem for energy providers and it would be a win win to help stabilize the grid and yet have cheap power. For me this is also more justifiable from an ecological standpoint. Anyways, what do think of that?

I would really like to invest but preferably somewhere in EU or Switzerland since regulations are protecting customers a bit better here.
Looking forward to hearing your opinions,

Mathhi

Hash rate swings a high of 320 to low of 50

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Hello,

I've been mining ETH ala pool-usa.ethosdistro.com pool for a few weeks now and when I view my progress at https://eth.nanopool.org/ for my wallet/account the graph shows large swings in hashing rate.

I'm running a six GPU RX 580 rig with about 150 mh/s, yet there are times when the graph will show a low in the 50's and sometime a high in the over 320 mh/s.

I was wondering if anyone could shed some light on why the hash rate would swing so much when the rig is reporting a hash rate of about 150 mh/s. Also when I look at the ETHos realtime hashing, the rig is buzzing along at about 150 mh/s.

I did notice that when it is low the accepted shares are low too and when it is high the accepted shares are higher.

You think this has to do with shares being rejected that would make for the lower hashrate on the graph? However, how would we account for the near double hash rate of the rig at times?

I'm averaging out for a 2 hour average of 151 mhs/s. However, I'd like to better understand what is going on in the process of taking in work hashing and sending the resulting share back to the pool.

Thanks,
Mike

PCI_E1 Slot Causes GPU to overheat?

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PCI_E1 is registered as GPU4 on smOS and whichever GPU I place in there, seems to get hotter than the others and eventually that GPU will stop hashing. After a few minutes of getting 0.00 Mh/s on that gpu, the system will reboot and it will work as normal... then it will stop hashing again and reboot. Sometimes it will work for 10min, sometimes 10 hours.

I've opened all my GPU's and reapplied the thermal paste, all ports are clear and I'm using the latest 008s risers. My room temp is 10c right now but still happening, any ideas?

mining monitoring & control options

Strange problem occuring on GPU3

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I have 2x R9 290 and 2x R9 290x so effectively 4 of the same GPUs, to make my life easier.
I have not done any overclocking yet as I want to seem them run stable first and then I will tweak slowly.

GPU0 t=67C f=65%, GPU1 t=71C f=65%, GPU2 t=66C f=65%, GPU3 t=76C f=97%
ETH: GPU0 26.836 Mh/s, GPU1 26.831 Mh/s, GPU2 26.762 Mh/s, GPU3 26.668 Mh/s

AFter a while I will see GPU3 drop off to 0.00 Mh/s and then in about 1-2 minutes the system will reboot and all will be fine, until the next time the GPU stops hashing again. Sometimes it will last 10minute, sometimes 10 hours.

I opened all GPUs, re-applied thermal paste and I cleaned all the GPU's, coolers and fans... everything is like new.

Can anyone share some ideas what could be causing 1 GPU to stop hashing?

(BOUNTY) my computer only detects 4 out of my 7 cards.

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i'm having some problems with my Mining rig. my computer can only find 4 out of the 7 cards i have plugged in.
i've serched google a bit but the most given answer is to enable 4G encoding in the bios, which i have done, unfortunately it did nothing.

i've tested all risers, the power and the GPUS, they are all working...


OS Windows 10.

Bios version;
aptio 2017 american megatrend, core version = 4,6,5,4

Motherboard; this weird one
https://www.aliexpress.com/item/Multifunctional-BTC-mining-board-ETH-miners-with-cpu-motherboard-8-graphics-card-large-board-HM7X-BTC/32821849357.html?spm=2114.search0204.3.28.68531006tDxWeP&ws_ab_test=searchweb0_0,searchweb201602_4_10152_10151_10065_10344_10068_10342_10343_10340_10341_10084_10083_10618_10630_10307_10301_10303_5722316_5711211_10313_10059_10534_100031_10103_10627_10626_10624_10623_10622_10621_10620_5711313_10142,searchweb201603_1,ppcSwitch_5_ppcChannel&algo_expid=989a4619-b0aa-4216-8fd9-55b32cdf1c48-4&algo_pvid=989a4619-b0aa-4216-8fd9-55b32cdf1c48&transAbTest=ae803_5&priceBeautifyAB=0

(some info about motehrboard
CPU interface type: PGA988
INTEL chip: Intel HM70 / 75/76/77
Brand: yanrui / research Rui workers
Control model: HM7X-BTC
Package Type: Package 2 Support Network Card Quantity: Single card Applicable object
: Desktop CPU type: IntelIntel
CPU interface: Socket G2 (notebook)
Motherboard structure: Micro ATX support display output:
Support display interface: VGA
Multi Graphics Support: CrossFire & SLI Memory Type:
DDR3 memory channel:
Dual channel maximum memory capacity:
16G whether to support disk arrays:
Do not support baby fineness: new )


10 dollar to the one who can fix this problem ! (BTC)

MinerGate legit?

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Is MinerGate a scam or legitimate? I checked out their calculator and they are estimating 1.28 ETH per week for 1320 mh/s which is a lot higher than every other calculator out there. And my own experience with Ethermine, Ethpool and Nanopool using Claymore has been that this estimate is BS. Either they have a dishonest calculator trying to lure people in or I have been doing it wrong all along. Interested to hear from anyone that has tried it.

Rig shutting down after few hours, worked great for months

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I have a 13 GPU rig that has worked good for months now in my home office. Rig Specs:

7 x 1070 TI EVGA SC mining ZEC. CHIP OC 200 MHZ, MEMORY OC 700 MHZ
6 x RX580 SAPPHIRE NITRO+ 8GB mining ETH. BIOS mod.
2 x 1000W EVGA Gold rated PSU
2 x 750W EVGA Gold rated PSU
Asus Mining Expert MB w/ 512 SSD and 8 GB DDR4
Windows 10

I have two APC UPS backups connected to this rig. Each UPS is rated up to 865W. I have the PSUs paired in two groups with a 1000W + 750W powering the Nvidia cards and a 1000W + 750W powering the AMD cards. The Nvidia cards and system is using about 865 watts and the AMD cards are also using about 865 watts.

Earlier today I noticed the LED of the UPS powering the Nvidia cards come on and a timer below showing how many minutes were left indicating power loss. The minutes kept increasing and I realized the cards were not drawing as much power. I could not RDP into the rig and Claymore Manager confirmed that the AMD cards were also offline. The fans of the AMD cards were still spinning but the fans of the Nvidia cards stopped spinning. All case fans and CPU fans were spinning. After about a minute the rig shutdown on its own.

I turned the rig back on and it was able to mine again for about 2 hours before the same process repeated. I turned it on again and this time reduced the CHIP OC of the Nvidia cards to 150 MHZ and the memory down to 650 MHZ. However as mentioned above the rig was working fine for months with the higher overclocks. Reducing the values did not impact performance much with the ZEC miner so I might do this with my other rigs to reduce stress on the cards.

Another thing I did this time was disable ECO mode on all the power supplies (stabbing in the dark, not sure if that is the culprit). There is an ECO switch on each PSU. If it is set to on the PSU fan will not come on until the temperature of the PSU has reached I believe 55 C.

So far the system has been running fine for about 1/2 hour since these changes but only time will tell.

Anyone have an idea why the rig is displaying this behavior? I looked at System Events but really could not figure out what the reason was for the crash and eventual shutdown since a monitor is not hoked up to the system. Temperatures appear to be fine in the room and the cards are not running hot.
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