Topic: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v15.0 (Windows/Linux) - page 893. (Read 6590718 times)

damn. well that is the suck.

kinda surprised they dont offer a 570 or something from nvidia.

now im cringing to see what happens to mine..

if its always the same card make sure you have it on the original vbios and run stock clocks. if its on a riser change the riser. inspect the pcie power connectors, they may be loose or otherwise not delivering power reliably. reseat the card in the slot/riser. set the fans on that card to max.

They just told me yesterday via email that they can't replace/fix their defective cards; they've offered $102.50 per defective card for the cards I paid $350 for .

I told them to go fuck themselves and ship me some working cards, no response as of yet.

yup. been 3 like weeks for my msi hynix 470 gaming x rma so far..

Try other pool.
Also, is your address correct?


Write this on you batch file:


check the hashrate on https://ethermine.org/  by inserting your ewal on the white box that says "Address"

Guys help!
There are four Sapphire AMD RX480 8 GB cards, how to set up this miner for mining?
I can not understand anything (

And they say you can not dig two coins at the same time, because the cards will be very hot.

16GB physical RAM, the same alias 16384 virtual

I don't know GPUZ (on linux), but it should be coherent with atiflash and amd numbering.
for Nvidia+ATI mixes, I'm afraid it will be complex.
Whatever numbering is done, something should allow a script to know which atiflash "slot" (and similar tool for Nvidia) is associated with a GPUnumber in ethdcrminer. Why not an initial table printer at boot, or a command-line option to dump that numbering. Today I am happy.

NB: I'm probably not the only guy to have automated some maintenance... eg I flash a more stable version of the VBIOS when I detect incorrect share or GPU hanging on one given GPU.

Please claymore make the GPU list sorted as shown in GPU Z which is physically layouted

On Linux I have this kind of message (triggering the watchdog, and reboot) when there is amdgpu driver kernel error, typically some GPU segfault fault. For me I blame it on RX480 overclocked/undervolted/overheating... another symptom is that ethdcrminer64 thread is hard sto stop, and even reboot is hard (I found a flag in grub to reboot reliably).
I imagine you are on Windows, and I don't know if you can catch the same hardware message ? can you check in windows event manager?
Note that for me this message can happen after 6-12 hours of stable work, but only near the hardware limits of each card (which are very diffrent for my RX480 - one stable at 29.6, other not so at 27.7).

On claymore 9.2 with a defunct RX470 I never had GPU hangs, but "incorrect shares", caused by hardware instabilities from overclocking and overheating.
NB: I have 20GB or swap and 4GB of DRAM.

What is your virtual memory setting? Make it higher. It is usually a system memory issue.

Bulgar thats not an advice. I just wanna know what is causing this OpenCL hangs. If it is something recoverable, than ok, if it's not, than sell it is the way. But what about when the new card will do the same? Again, I need to know the reason for theese hangs.

Try some high end R9's like the nano on a low epoch ETH alt like EXP.

Hey everybody !

After countless hours of research, and obviously reading a lot about AMD cards Ether mining crown, I decided to do full Nvidia for a first 6xGPUs dedicated rig. I figured out that even if the hashrate is a bit lower than with RX 4XX cards on ETH, it also offers more possibilities on other cryptos. We don't want to forget that ETH is announced to go POS since last year. Plus, on the power consumption side, no battle here, Nvidia holds the 1st place by far.

I read as much as I could of this very thread, and checked the results on whattomine.com, but I'm still wondering what hashrates Nvidia users actually get in the real world, out of the theoritical field.

I'm already mining ETH+LBC with 2 GTX970 [41MHs/64MHs], for it happened to be the most valuable combo so far, but I doubt these results are accurate for a proper upgrade to GTX1070.

I also would like to ask what GTX1070 brand/model you're using, and eventually why. I'm looking for a good average between performance and longevity. With proper maintenance, I plan to get these working for at least 2 years time [Reboot and dust-off every week + full cleaning and basic maintenance every other month + full check and fan greasing twice a year]

I decided to buy GTX1070, but I've got a very nice opportunity for an EVGA GTX1080 SC, and was wondering as well, if people had performance feedback about this very GPU. As far as I can read, it seemed like 1080 weren't doing very good, and looked like it was because of a lack of optimisation [on top of the DDR5x issue]. Do you know if this has been fixed, or it will just be uncompatible at all ?

Cheers !

Same has happened to me for last two weeks. Effective rate drops frequently. I've thought it was due to dual mining eth + dcr but, it seems like pool has some issues.

Btw, If your rig are crashing when dual mining, check the gpu that is giving erros and re-flash its bios or reduce intensity. I've had one unlucky gpu that freezes whole system.

What memory timing do you use? What make and model of your cards? Do you use 17.4.3 and Claymore 9.3?

It depends a lot on the ambient temperature. If it is above 30ºC, consider it to be unnatural, but always check the exhaust air condition and inject cold air.

Remembering that the most efficient system would be that they expel the air in the open, however as we work with electronic components this becomes impossible because of the rains, but a draft is always welcome.

The good thing would be to put in an environment like I said earlier with constant or forced air exchange.

Spacing between GPUs is also important.

Standard temperatures for

R9 280x is 68 ° C ~ 75 ° C
Rx 470 4gb with Oc, 64 ° C ~ 70 ° C
In Rig, Space 8 cm

sell it and buy another one, time is money

I have also this OpenCL hang aprox. 2 times a day on one card. I know which one it is but have absolutelly no idea how to avoid this hang. I tried to set stock voltages, low memory frequency, low core, nothing. It is RX 480 Nitro+ 4GB with Hynix memory. Currently running on 1145 core, 1885 mem, 27 Mhs, zero memory errors. But 2 hangs a day How to solve this hang error?

What I do personally, I go on MSI Afterburner and I put the fan to the maximum. Now you just have to check the louder one.