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Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v12.0 (Windows/Linux)
by
xunl
on 12/01/2019, 16:41:09 UTC
Hi,

4 days away from the next major upgrade in ethereum and hard fork. anything claymore miners need to do? or we can just continue mining like in the past?

Thanks
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Topic
Board Mining (Altcoins)
Re: PhoenixMiner 4.0b: fastest Ethereum/Ethash miner with lowest devfee (Win/Linux)
by
xunl
on 06/12/2018, 17:47:25 UTC
Claymore 11.9 can control OC on nvidia 10 series cards as well as AMD RX 580 cards w/o installing any 3rd party tools. Just bare factory device driver minimum installation (no wattman/afterburn is needed). It's running very stable for long time. Can PhoenixMiner do that?
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Topic
Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.9 (Windows/Linux)
by
xunl
on 06/12/2018, 17:41:03 UTC
Anyone still gpu mining?  Grin

Have a look at Claymores ETH devfee addresses, Oh yes people are still mining with GPU's but no where near as many as this time last year!

Only those who have an access to very cheap-to-free electricity are still mining. Roll Eyes

Check this out:

How the Crypto Collapse is Hurting Nvidia

https://www.investopedia.com/news/how-crypto-collapse-hurting-nvidia/

Moreover, NVIDIA Stock has plummeted and wiped away 18 months of gains already within two days.


Can someone please define what price is consider to be cheap electricity?
I am still mining at $10c/KWH during sleep, is it cheap? I have been scaled back from a tiny mining farm to just a few dual gpu gaming rigs now. I haven't played any games for many years. The games are a lot better now than the past w/ the dual 1080 gpus. I remember gamers used to complain about the miners, now they are trolling the miners.

When eth price rises, hashpower also increases and mining difficulty increases even faster. So most miners are not very profitable unless the eth price jumps even faster. (make small net profit)
However, when eth price drops, hashpower also drops but the difficulty drops much slower than the hashpower; therefore, mining becomes extremely unprofitable. (lose big time in energy and equipement cost)

As we speak, epoch approaches 228 very soon. W/O update claymore miner will halt by Oct. After eth upgrade to constantinople, probably will reach epoch 299 even sooner.
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Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.9 (Windows/Linux)
by
xunl
on 24/10/2018, 21:59:44 UTC
It's epoch 219 now. For about 4.8 days, the epoch will increase by 1 and the duration is getting shorter. So it's about 1 year left before reaching the curreent claymore 11.9 limit, epoch 299. Will Mr claymore provides at least one update to increase the epoch limit by then? Assuming ethereum keep delaying releases and defering difficulty bomb like now.
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Topic
Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.8 (Windows/Linux)
by
xunl
on 07/07/2018, 09:42:41 UTC
Last 3 days I saw a lot of connection lost (drops) in the logs and it caused the miner to crash/restart. Can someone explain to me what are em (eminer) and fm (fminer)? Thanks

03:52:26:824   68   watchdog - eminer thread hangs
03:52:26:824   68   em hbt: 194234, fm hbt: 15,
03:52:26:824   68   Miner thread hangs, need to restart miner!
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Topic
Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.7 (Windows/Linux)
by
xunl
on 30/05/2018, 20:29:30 UTC
Claymore 11.7 watchdog not working.

This is the 1st time ever happened to me. Normally, when gpu shows hashrate at 0.00 mh/s for about 1~2 minutes, watchdog would catch the crash and restart the miner by default.

Last night after epoch changed to 190, one of my GPU (RX580 8G) crashed during DAG generation. So the hashrate was 0.00 mh/s, the only difference this time was it stayed at 0.00 for 2.5 hours or so, watchdog never caught this crash even the hb time was 418109 (normally watchdog restart the miner when hb time > 20000). Eventually I caught the error and restart the miner on my own. Watchdog was very reliable in catching crash and restart miner in the past, but this time it failed. Why?
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Topic
Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.7 (Windows/Linux)
by
xunl
on 29/05/2018, 23:30:59 UTC
Hi Everyone,

Is there a way to make Claymore's miner auto switch between 2 ETH wallet address ?  kinda like how the Devfee works ?

I'm helping my friend run & maintain his farm & for payment I can have all the miner mine to my wallet for 1 day every week, I wish to set every Sunday to mine to my wallet then after that it should auto switch back to my friends wallet.

For the time being I have to manually close & run between 2 .bat files, so i'm wondering is there anyway to make my life easier.

We're running on Windows 10, I'm not familiar with Linux at all.

Just install two instances of Claymore and have some GPUs mine for you

Hi, thanks for replying. If I install 2 instance of Claymore, then it would be mining all the time to both wallet, I just wish for the onwer's claymore to stop for 1 day every week. I have plans for the future that i might use that one day to mine something else other than ETH but for the time being its only ETH.

The farm has 40 over rigs, doing it manually is kinda tiring.   Embarrassed

Something need to be clear here.
You don't install 2 sets of claymore. You run the same claymore with 2 instances (2 windows command batch)
Even this is no longer needed for your situation on every rig since you have 40+ rigs.

To simplify your situation, all you need to do is:
If you have 42 rigs, Just set 1/7th of the total rigs with your address and the rest with his address. There is no need to use Window Task Scheduling. Mathematically, it's the same swithing address once a week by using task scheduling. Each rig run 1 batch file either with your address or his address.
At the end, there might be 1 rig need to run 2 instances of claymore, then create 2 batch file to run 2 address. You can use -di to set which GPU to run.
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Topic
Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.7 (Windows/Linux)
by
xunl
on 19/05/2018, 21:45:34 UTC
Feature request

In Phoenix miner, I can do
Phoenixminer.exe -list to get a list of GPUs and exit, NO MINING at all.
So I wrote a script to auto check if all GPUs boot up after windows start. If gpus are missing then reboot before start mining.
Can Claymore add something similar to list all gpus and exit w/o mining?

What's the difference: time to shutdown
When no mining operation is runing, shutdown /r /f /t 1 can take place right away.
When mining operation starts, even force kill the process can take a few seconds to minute to complete before reboot.

Since all the reboots are just fix errors and do not earn coins, the shorter the better.

Thanks
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Topic
Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.7 (Windows/Linux)
by
xunl
on 07/05/2018, 06:02:11 UTC
I also get these errors repeatedly on 11.7. Each time claymore miner will crash & restart when error occurs. Anything I can do to avoid them?
The these errors are for gtx 1070/1060 6GB

Code:
23:42:31:285 668 em hbt: 15, fm hbt: 31,
23:42:31:285 668 watchdog - thread 0 (gpu0), hb time 234
23:42:31:285 668 watchdog - thread 1 (gpu0), hb time 109
23:42:32:769 8e4 GPU 0, GpuMiner cu_k1 failed 4, unspecified launch failure
23:42:32:769 8e4 GPU 0, GpuMiner kx failed 1
23:42:32:769 8e4 Set global fail flag, failed GPU0
23:42:32:769 8e4 GPU 0 failed
23:42:32:769 8e0 GPU 0, GpuMiner cu_k1 failed 4, unspecified launch failure
23:42:32:769 8e0 GPU 0, GpuMiner kx failed 1
23:42:32:769 8e0 Set global fail flag, failed GPU0
23:42:32:769 8e0 GPU 0 failed

Code:
GPU 0, GpuMiner cu_k1 failed 77, an illegal memory access was encountered
GPU 0, GpuMiner kx failed 1
Set global fail flag, failed GPU0
GPU 0 failed
GPU 0, GpuMiner cu_k1 failed 77, an illegal memory access was encountered
GPU 0, GpuMiner kx failed 1
Set global fail flag, failed GPU0
GPU 0 failed

Code:
02:29:01:610 1390 GPU 0, GpuMiner cu_k1 failed 73, an illegal instruction was encountered
02:29:01:610 1390 GPU 0, GpuMiner kx failed 1
02:29:01:610 1390 Set global fail flag, failed GPU0
02:29:01:610 1390 GPU 0 failed
02:29:01:610 1160 GPU 0, GpuMiner cu_k1 failed 73, an illegal instruction was encountered
02:29:01:610 1160 GPU 0, GpuMiner kx failed 1
02:29:01:610 1160 Set global fail flag, failed GPU0
02:29:01:610 1160 GPU 0 failed
Post
Topic
Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.7 (Windows/Linux)
by
xunl
on 04/05/2018, 05:04:36 UTC
Any toughts on my rigs?

RX 580
https://i.imgur.com/OFP14w6.jpg
Core Voltage -93
Power limit +0
Temp limit 90
Core Clock 1235
Mem Clock 2250
Fan Speed 70%

RX 570
https://i.imgur.com/pVbGo8F.jpg
Core Voltage -93
Power limit -7
Temp limit 76
Core Clock 1330
Mem Clock 2100
Fan Speed 80%

3 x GTX 1060 & 1 x GTX 1080
https://i.imgur.com/7NgC5xP.jpg

1060's
Core Voltage +0
Power limit 75
Temp limit 72
Core Clock -400
Mem Clock +1000
Fan Speed 35%

1080
Core Voltage +0
Power limit 80
Temp limit 74
Core Clock -400
Mem Clock +1000
Fan Speed 45%

Thoughts or ideas?

I do use Afterburner for these clocks and i close the program after adjusting, but i heard that Claymore doesn't Recognize Afterburner settings.
Is this true, is it better to edit the .bat file?


You run gtx 1080 TI, right? I never thought gtx 1080 can go to 38 mh/s. Do you have AMD 18.3.4 driver and claymore 11.7 installed? If so, you can add everything to bat file and uninstall afterburn.
Also, what's the power usage for 580 out of wall? Can you run rx 580 at your OC setting stable enough for days?

Thanks for your reply.
It's not a TI, it's a GTX 1080 (G1 Gaming-8GD) it's because i use the ETHlargement Tool.
On my AMD rigs i use the Crimson beta drivers still: https://support.amd.com/en-us/kb-articles/Pages/Radeon-Software-Crimson-ReLive-Edition-Beta-for-[Suspicious link removed]pute-Release-Notes.aspx
Exactly how i check my power usage? is there a tool for that? because i don't have a adapter that displays the power usage.
And yea my 580 rigs keeps running without a reboot or share warning in the .bat file.

https://www.hwinfo.com/download.php
It will give you wattage info
For nVidia: close to exact
For AMD: if it display GPU + Mem seperatedly, add them together give you close to exact. if it only display GPU, then you won't know the exact usuage.

Are all your cards on the same rig?

Claymore takes afterburn setting for nvidia cards very well. Claymore 11.7 can control/override afterburn OC setting directly now.
Claymore takes afterburn setting for AMD, but it will reset to default randomly (I never got pass more than 1 day). I use WattMan to control OC on Blockchain Beta. I can run 2~6 weeks straight w/o problem. The downside is every time system reboot, I have to manually set it again in WattMan. You have run it for 46+ hours, maybe you can stick with afterburn as long as it works.
But with AMD 18.3.4, you can control it directly with claymore (good for automated startup script after system power on) But I have some stability issues so I am still testing it before rollout to all rigs.
My goal is to use fewest tools to control all OC settings across all nvidia and AMD cards on the same rig and automate the startup process. It seems claymore 11.7, AMD 18.3.4 and most nVidia driver since Q317 can archieve that. But stability is a concern here.
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Topic
Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.7 (Windows/Linux)
by
xunl
on 04/05/2018, 02:03:33 UTC
Any toughts on my rigs?

RX 580
https://i.imgur.com/OFP14w6.jpg
Core Voltage -93
Power limit +0
Temp limit 90
Core Clock 1235
Mem Clock 2250
Fan Speed 70%

RX 570
https://i.imgur.com/pVbGo8F.jpg
Core Voltage -93
Power limit -7
Temp limit 76
Core Clock 1330
Mem Clock 2100
Fan Speed 80%

3 x GTX 1060 & 1 x GTX 1080
https://i.imgur.com/7NgC5xP.jpg

1060's
Core Voltage +0
Power limit 75
Temp limit 72
Core Clock -400
Mem Clock +1000
Fan Speed 35%

1080
Core Voltage +0
Power limit 80
Temp limit 74
Core Clock -400
Mem Clock +1000
Fan Speed 45%

Thoughts or ideas?

I do use Afterburner for these clocks and i close the program after adjusting, but i heard that Claymore doesn't Recognize Afterburner settings.
Is this true, is it better to edit the .bat file?


You run gtx 1080 TI, right? I never thought gtx 1080 can go to 38 mh/s. Do you have AMD 18.3.4 driver and claymore 11.7 installed? If so, you can add everything to bat file and uninstall afterburn.
Also, what's the power usage for 580 out of wall? Can you run rx 580 at your OC setting stable enough for days?
Post
Topic
Board Mining (Altcoins)
Re: PhoenixMiner 2.9e: fastest Ethereum/Ethash miner with lowest devfee (Windows)
by
xunl
on 30/04/2018, 02:42:44 UTC
Code:
2018.04.29:20:37:58.645: GPU2 CUDA error in CudaProgram.cu:264 : unspecified launch failure (719)
2018.04.29:20:37:58.645: GPU2 GPU2 search error: unspecified launch failure
2018.04.29:20:37:58.674: GPU1 CUDA error in CudaProgram.cu:264 : unspecified launch failure (719)
2018.04.29:20:37:58.674: GPU1 GPU1 search error: unspecified launch failure
2018.04.29:20:37:58.791: wdog Thread(s) not responding. Restarting.
2018.04.29:20:38:02.402: main Eth speed: 57.008 MH/s, shares: 21/0/0, time: 0:20
2018.04.29:20:38:02.402: main GPUs: 1: 24.358 MH/s (14) 2: 32.650 MH/s (7)

I got this error on Gigabyte WF OC 1070 every 5~20 minutes running 2.9e
Phoenix is 2.9e .3mh/s faster than Claymore 11.7, but claymore can run at least 5 hours before hit "unspecified launch failure" error.
Is it because Phoenix runs at higher intensity than claymore?
I cannot use -dcri option to tune nVidia cards in claymore? Can I fine tune nVidia card at the miner startup (command options)?
Post
Topic
Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.7 (Windows/Linux)
by
xunl
on 27/04/2018, 03:08:05 UTC
One of my nvidia 1070 keep crashing on both 11.6 and 11.7 (every 3~7 hours).
In log I got cuda error 4, unspecified launch failure
In Windows event, I have nvlddmkm event id 13.
What's the cause here?

I still use afterburn to control OC on 11.7 since I want to see if 11.7 is stable enough to run first.
The same card runs stable in 11.2.
I have identical card w/ identical OC setting run stable on 11.6


Post
Topic
Board Mining (Altcoins)
Re: PhoenixMiner 2.9e: fastest Ethereum/Ethash miner with lowest devfee (Windows)
by
xunl
on 27/04/2018, 03:02:59 UTC
DDU 1st is always better for a clean removal.

I you use custom bioses, don't forget to patch the 18.3.4 driver before the reboot.
Drivers 18.x.x don't need patch. AMD removed check mod bios. I'm use RX 580 8Gb and didn't patch drivers from 17.12.x when AMD was removed mod bios protection... All my 580 cards use modded bioses.

RX580 is not checked, but RX480 is, and needs the patch

Thank you all for the hint. I am on 580 so I won't patch. However, I noticed in the past when I clean install AMD drivers from Clean Windows, it installed much quicker (screen flick 4 times per GPU) than upgrade (it seems AMD is removing old driver on each GPU one-by-one in the background The screen flicking hundreds of times before completion and sometimes OS hang during upgrade).
Post
Topic
Board Mining (Altcoins)
Re: PhoenixMiner 2.9e: fastest Ethereum/Ethash miner with lowest devfee (Windows)
by
xunl
on 26/04/2018, 10:18:13 UTC
If I upgrade AMD driver from blockchain beta to adrenalin 18.3.4, can I just update straight through AMD setting? Do I have to use DDU to unstall the old driver first?
Post
Topic
Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.7 (Windows/Linux)
by
xunl
on 26/04/2018, 10:15:17 UTC
What version of nVidia driver do I need to install so I can use Claymores 11.7 to control OC settings. Do I still need to use afterburn if I use claymores to control OC? If I upgrade nvidia driver, do I have to use DDU or I can just update the driver through Windows Device Manager? Thanks
Post
Topic
Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.6 (Windows/Linux)
by
xunl
on 22/04/2018, 03:39:30 UTC
What is the difference among 3 intensity setting flag?
-li
-ethi
-dcri

I can see
-dcri adjust intensity w/o change hashrate
-ethi adjust hashrate
-li seems similar to ethi, is there any differnce?
-ttli apply li when temperature threshold is reached.


Actually, all these settings will increase or decrease the mining intensity, but in different ways depending on how you want to use them.


-dcri  Used for individual tuning of each GPU for maximum hash rate.
         It will definitely increase or decrease your hash rate depending on how well it is tuned.
         If it is tuned badly then the intensity is actually lower and you will get less hash rate
         but lower temp on that GPU. Tuned well and the hash rate goes up and also the temp. You want this
         tuned to the highest hash rate on each card.

-ethi  Used to set the Max intensity per card. If you set this to the max allowed your cards
         will mine to the maximum intensity allowed by the miner. However, if you have badly
         tuned the -dcri then that card will still not be getting you the maximum intensity.
         Also, the -li if used will lower the intensity if you have it set. And of course  the -ttli will
         also cause the card to use a lower intensity if the temp you have specified is reached.
      
-li      Used if you’re having a heat problem with a card. It basically decreases the
         intensity of the GPU therefore lowering the heat.

-ttli    Automatically decreases the intensity for a card if the temp you specify is exceeded, that lowers the temp of that card.


Here is the way I think these setting should be used. It is how I do them and I have no issues.
If anyone else has a better or different method I would like to know what it is please.

1st:
-ethi
Set this to maximum value to get the most mining intensity and the highest hash rates.

2nd:
-dcri
Tune your cards to get the maximum hash rate on each card. Each card will probably have a different setting.

3rd:
-ttli
I set this to a temp that I don't want my cards to go above at any time.
I set mine to 75. I don't want any of my cards to go above 75. If for some reason they do
then the miner will automatically reduce the intensity on that card and lower the temp for me.
If this happens you can see it in the logs. Then you can set the -li for that card only to lower
it's intensity so that it doesn't happen again.

4th:
-li
I would only use this to reduce the intensity on a card that was giving me a temp issue
that the other settings did not handle.

If all your cards have slightly high temps after doing this, then the best thing to do is
use the -ethi and lower that number for all the cards. All cards will then mine at a lower intensity
and the temp will be dropped on them all.

These are my opinions and experience of how these setting work.


Edit: Note

All this assumes that you have not overclocked to a point where increasing the intensity will cause you a stability issue.


thanks,

-ethi: default = max hashrate
-dcri: default = auto tune for AMD, not changeble for nVidia (constant @ 30)
-ttli: I didn't set, I use tstop/tstart instead since it works for both AMD and nVidia. Does -ttli work for nVidia as well? If so, I could use -ttli as bridge
-tt 60 -ttli 73 -tstop 77 -tstart 59
afterburn also sets temperature threshold per GPU, once it reaches the threshold, I think it throttles the GPU
-li: never used before, hopefully will never use it
Post
Topic
Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.6 (Windows/Linux)
by
xunl
on 21/04/2018, 20:15:15 UTC
Hey all... I'm getting the "NVML: cannot get fan speed, error 999 (an internal driver error occurred)" error... cannot isolate it to one card (all 1060 6GB, but of different makes). Every time I take one suspected card out and put it to a separate instance, the main group still throws this error. I add another to the suspect group and still an error.... and so forth until I can fairly say that no one card is at fault. All but two risers are powered by PCIe, the other two are molex,  but on separate cables. Total power usage of the PSU is no more than 80% at any time. I _think_ I'm doing everything right. I've even tried saving the OCs so that when I quit Afterburner, they still hold. (Thought it might be AB's monitoring that was interfering.)

Here's the thing, though... unlike other people, this error does _not_ cause the miner to restart nor does it cause anything like windows to freeze or restart. Plus this error does not show up in the logs straight away, it typically takes 4-6 hours.

Now I know what some might say... "if it isn't crashing, don't worry." But I can't help but think that if this error is being reported, it's for a reason (a hit on number of shares earned, bad connection somewhere, impending doom ;-) ) ... or there could simply be a bug in the program.

Thanks for any hints as to what might be going on.

potificate

P.S. I am using 11.6 and 391.35 and did not have this issue when running 1050Ti's on the same rig.


Error 999 is for nVidia Card and generally are not critical. The root cause can be riser, cable, loose connection, etc. I used to worry about crash after I saw error 999 so I reboot the rig. But since 11.2, I have continued runing w/o any action if it only misses fan info (since I set fan at constant via afterburn). It runs anytime between 1~17 more days until a new issue cause the rig to hang (none of them is related to the GPU showing error 999 initially). If it misses temperature, then I would have to restart or reboot to fix the issue right away.

6 things through my observations:
1) If error 15 arise after error 999, your rig might hang
2) If the initial GPU showing error 999 crashes, the afterburner OC setting might reset to default (slow hashrate, higher power comsuption, much higher temperature)
3) If 2) occurs, the error 999 might spread out to other nVidia cards like a virus.
4) If you use UPS, another power outage might trigger error 999 (initially missing fan setting, now missing both fan and temp)
5) missing fan info is not as critical as missing temp
6) sometimes when you close the miner that GPU show error 999, afterburn will not start (nvdia driver issue)

Post
Topic
Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.6 (Windows/Linux)
by
xunl
on 21/04/2018, 20:00:58 UTC
What is the difference among 3 intensity setting flag?
-li
-ethi
-dcri

I can see
-dcri adjust intensity w/o change hashrate
-ethi adjust hashrate
-li seems similar to ethi, is there any differnce?
-ttli apply li when temperature threshold is reached.
Post
Topic
Board Mining (Altcoins)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.6 (Windows/Linux)
by
xunl
on 19/04/2018, 22:17:33 UTC
After upgrade to 11.6 from 11.2, one of my Gigabyte Windforce OC GTX 1070 (GPU #8) keep crashing every 1~3 minutes.

04:33:45:433   18bc   ETH: GPU0 32.220 Mh/s
04:33:46:371   1748   GPU0 t=48C fan=69%
04:33:50:903   f78   GPU 0, GpuMiner cu_k1 failed 4, unspecified launch failure
04:33:50:903   f78   GPU 0, GpuMiner kx failed 1
04:33:50:903   f78   Set global fail flag, failed GPU0
04:33:50:903   f78   GPU 0 failed
04:33:50:903   a48   GPU 0, GpuMiner cu_k1 failed 4, unspecified launch failure
04:33:50:903   a48   GPU 0, GpuMiner kx failed 1
04:33:50:903   a48   Set global fail flag, failed GPU0
04:33:50:903   a48   GPU 0 failed

In 11.2 this GPU can run between 15~21 days straight w/o problem. Then I might need to restart miner/PC when similar issue above occurs (my guess is GPU #8 cannot survive 4 epoch changes since I use -eres 4)
In 11.6 the runtime has shortened to 1~3 minutes even everything else (OC setting via afterburn, claymores' command line arguements) stay the same.
I have tried to set -ethi manually between 8 and 0 to reduce intensity and increase stability, but it crashes nonetheless.

FYI,
This is a mixed rig w/ 1070, 1060, RX 580. I started 9 instances of claymores to run each GPU individually. When the GPU #8 crashes, the other 8 run normally w/o any issue.
I have another WF OC 1070 on the same rig, same setting everyhting. It runs smooth w/ 11.6
After the GPU #8 repeated crashed about 10 times, I decide to run it w/ 11.2. It runs very stable w/ 11.2 as before
So I have 8 GPUs run 11.6 stable, 1 WF OC GTX 1070 runs 11.2 stable.
The reason I upgrade to 11.6 for GTX 1070 is to reduce stale shares.

Any suggestions?