Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v15.0 (Windows/Linux)

[coinzoid]

Started testing 9.7 with AMD RX series gpus. 480 nitro+ makes no difference over previous releases. Hopefully we will have a new release soon with way better features.

[milosx7]

got some extra juice on my 1050Ti's. Like 1MH/s per card or so
This is great

[Branko]

I've built ASM kernels for Baffin (RX460/560) cards with good speedup for DCR/SIA/PASC and may be 1% for ETH, now I check what I can do for Nvidia cards. New version will be available in 2-4 days.

Impatiently waiting for this
I'm curious, would optimizations help your zcash miner too,
I find it strange that old 7850 1GB Radeons have 50% better
performance than RX560s with 4GB memory

It is not memory size related.
https://www.techpowerup.com/gpudb/2940/radeon-rx-560
Memory Bus:   128 bit
Bandwidth:   112.0 GB/s

https://www.techpowerup.com/gpudb/1055/radeon-hd-7850
Memory Bus:   256 bit
Bandwidth:   153.6 GB/s

But anyway I can get some speedup by building ASM kernels for Baffin.

While what you say is obviously true (reason why old 280X have superb ZEC and subpar ETH results, due to 384 bit bus)
I think there's still room for improvement, based on your recent work on ETH miner...it brought memory controller utilization
from 60% range all the way up to 90%, along with improvements in secondary coin mining

Currently your ZEC miner uses only 33% memory controller utilization on my card

Of course, I'm not programmer, so I could be totally wrong

[strannik951159]

Thanks tried it on my GTX 1070. Up to par with ethminer. speeds now
For dual mining I get quite some ETH hashrate drop for little DCR, so for now dual mining on my gtx 1070 is a no go.

well, dual-mining with gtx1070 still disappointed results ...

It depends on GPU, settings, selected coin, it's price and net diff. For example, for SIA on stock 1070 ccminer shows 1400MH/s. In dual mode in v9.7 I get 650MH/s SIA (so 45% of pure SIA speed) with only 2% ETH lost (about 25.8MH/s instead of 26.4MH/s).
DCR speed is not so good, agreed.

ETH - Total Speed: 119.699 Mh/s, Total Shares: 284, Rejected: 0, Time: 02:46
ETH: GPU0 28.884 Mh/s, GPU1 30.478 Mh/s, GPU2 30.198 Mh/s, GPU3 30.139 Mh/s
 SC - Total Speed: 2992.474 Mh/s, Total Shares: 843, Rejected: 1
 SC: GPU0 722.094 Mh/s, GPU1 761.959 Mh/s, GPU2 754.947 Mh/s, GPU3 753.474 Mh/s

gtx 1070 etc + sia

I would love to learn you setting mate. Currently 3 Asus Dual GTX1070 @ 8708MHz mem clock 80%TDP. I'm getting poor result on Sia. average 30.4mh/s for eth 350mh/s for sia per card which is not even half of yours. DCRI 35

-dcri 75

[bitKaBoom]

I think of buying Asus gtx 1060 strix oc, hope, it will do well with my i56600K from Intel (had old 770, doesn't work properly, though)

[chapeaublanc]

Thanks tried it on my GTX 1070. Up to par with ethminer. speeds now
For dual mining I get quite some ETH hashrate drop for little DCR, so for now dual mining on my gtx 1070 is a no go.

well, dual-mining with gtx1070 still disappointed results ...

It depends on GPU, settings, selected coin, it's price and net diff. For example, for SIA on stock 1070 ccminer shows 1400MH/s. In dual mode in v9.7 I get 650MH/s SIA (so 45% of pure SIA speed) with only 2% ETH lost (about 25.8MH/s instead of 26.4MH/s).
DCR speed is not so good, agreed.

ETH - Total Speed: 119.699 Mh/s, Total Shares: 284, Rejected: 0, Time: 02:46
ETH: GPU0 28.884 Mh/s, GPU1 30.478 Mh/s, GPU2 30.198 Mh/s, GPU3 30.139 Mh/s
 SC - Total Speed: 2992.474 Mh/s, Total Shares: 843, Rejected: 1
 SC: GPU0 722.094 Mh/s, GPU1 761.959 Mh/s, GPU2 754.947 Mh/s, GPU3 753.474 Mh/s

gtx 1070 etc + sia

I would love to learn you setting mate. Currently 3 Asus Dual GTX1070 @ 8708MHz mem clock 80%TDP. I'm getting poor result on Sia. average 30.4mh/s for eth 350mh/s for sia per card which is not even half of yours. DCRI 35

-dcri 75

-dcri 75 is giving me 22Mh/S for ETH instead of 30 with default value.
I really have no idea how did you manage to get both SIA and ETH performing like this

[wajiminer]

WOW! I'm running 7 1070's and picked up another 10MHS with the new release!!

[yany]

6x MSI GeForce GTX 1070 Armor OC
Driver: 384.76
Win10 x64 (latest upds)
Ether only.

GPU: 1750
RAM: 2225
TDP: 60%
Consume: 770W

v9.6: 180 MH/s
v9.7: 187 MH/s


Cheers.

[slick1907]

GPU 3, GpuMiner cu_k01 failed 73, an illegal instruction was encountered
GPU 3, GpuMiner kx failed 1
GPU 4, GpuMiner cu_k01 failed 73, an illegal instruction was encountered
GPU 4, GpuMiner kx failed 1
GPU 3 failed
GPU 2, GpuMiner cu_k01 failed 73, an illegal instruction was encountered
GPU 2, GpuMiner kx failed 1
GPU 0, GpuMiner cu_k01 failed 73, an illegal instruction was encountered
GPU 0, GpuMiner kx failed 1
GPU 1, GpuMiner cu_k01 failed 73, an illegal instruction was encountered
GPU 1, GpuMiner kx failed 1
GPU 3, GpuMiner cu_k01 failed 73, an illegal instruction was encountered
GPU 3, GpuMiner kx failed 1
GPU 2 failed
GPU 0 failed
GPU 5, GpuMiner cu_k01 failed 73, an illegal instruction was encountered
GPU 3 failed
GPU 2, GpuMiner cu_k01 failed 73, an illegal instruction was encountered
GPU 2, GpuMiner kx failed 1
GPU 0, GpuMiner cu_k01 failed 73, an illegal instruction was encountered
GPU 0, GpuMiner kx failed 1
GPU 1, GpuMiner cu_k01 failed 73, an illegal instruction was encountered
GPU 1, GpuMiner kx failed 1
GPU 4 failed
GPU 2 failed
GPU 0 failed
GPU 1 failed
GPU 4, GpuMiner cu_k01 failed 73, an illegal instruction was encountered
GPU 4, GpuMiner kx failed 1
GPU 5, GpuMiner kx failed 1
GPU 6, GpuMiner cu_k01 failed 73, an illegal instruction was encountered
GPU 6, GpuMiner kx failed 1
GPU 4 failed
GPU 1 failed
GPU 6 failed
GPU 6, GpuMiner cu_k01 failed 73, an illegal instruction was encountered
GPU 6, GpuMiner kx failed 1
GPU 5 failed
GPU 6 failed
GPU 5, GpuMiner cu_k01 failed 73, an illegal instruction was encountered
GPU 5, GpuMiner kx failed 1
GPU 5 failed


6x  msi gtx 1060 3gb gt oc (hynix ram)
1x galax gtx 1060 3gb (samsung)
win 10 64 bit
nvidia 384.76
8gb ddr4 ram
v9.6 no problem
v9.7  ?

[Schnubab]

Hey all,

I hope you have all been having a great weekend.

So when playing around with two 7970's I have laying around, I noticed what seems to be a relation between the DAG Epoch # set and my hashrate when running Claymore's EthDcrMiner using Nicehas running either Daggerdecred or Daggerhashimoto.

The miner has a tendency to set DAG Epoch #133 or #135, achieving a hashrate of say 25mh/s. However, when the miner sets DAG Epoch #1 (happens maybe 1/20 startups), the hashrate pretty much doubles.

If I understand correctly, the DAG is meant to be randomised on the fly, but I wanted to know 2 things :-
1) Is it possible to manually set the DAG Epoch?

or

2) Does anyone perhaps have an idea what is causing this issue?

[Branko]

If I understand correctly, the DAG is meant to be randomised on the fly, but I wanted to know 2 things :-
1) Is it possible to manually set the DAG Epoch?

or

2) Does anyone perhaps have an idea what is causing this issue?

Where did you hear that? Since I started mining its only going up

[gt_addict]

So suddenly im getting windows defender saying "ethdcrminer.exe has been blocked from accessing graphics hardware" ive added the folder and the individual .exe to the windows defender exclusion list but its still happening. Can someone help please?

[swisstrader]

So suddenly im getting windows defender saying "ethdcrminer.exe has been blocked from accessing graphics hardware" ive added the folder and the individual .exe to the windows defender exclusion list but its still happening. Can someone help please?

My Antivirus program Webroot SecureAnywhere reports always that Claymore's miner is a Trojan, but this is a false positive alert.
Have set in SecureAnywhere the miner as allowed exception.

[ltcsprite]

My 1060 rigs went from 613MH/s total to 640MH/s total with v9.7.

Thanks Claymore. 

[chronek]

i wonder if anyone compared claymore with older version and other mining software, is that really amd hardware problem or someone pay to criple it?

[NavyCuda]

i wonder if anyone compared claymore with older version and other mining software, is that really amd hardware problem or someone pay to criple it?

I think the architectural changes, on top of the drivers issues that Vega currently is having is the most likely culprit.

[syncis]

I am so desperate that I will donate eth if i solve this....

6x 1070, asrock h81 btc, win 10, latest nvidia drivers, claymore 9.6, 1200w PSU, Virtual set to 16 gb.
Even at stock settings , the miner crashes, sometimes directly , and sometimes after 1-2 hours.
I have tried different nvidia drivers, and even tried previous claymore versions.
Tried swapping the cards around and setting in bios gen1/gen2 ( it should work out of the box )
I have connected the 2 molex connectors on the mobo and also having 6 powered usb risers.
Only time i can get it to go a bit longer is if i have it at stock, but change the Power target to around 60% for all cards.
I have a "wattman" and it says computer is taking 650w from the wall. but thats with low Power target, otherwise it is around 900.
When it crashes, 1 card Always dissapears , both from the miner and from Afterburner ( in AB its there but cant change anything because its grayed out ) resulting in having to reset PC.
Sometimes when it crashes , my monitor that is connected to 1 of the cards also shuts down.
Most of the times i get BSOD after the crash and if that doesnt happen, the whole computer freezes up.
I really want to Think there is enough Power to drive this with 1200w.


Edit : Just Before it crashes, my mouse curser is almost unmovable. Really laggy. But both cpu and memory are far from maxed out.
My cards temp are also not capping, just around 60.

Any ideas ?

My launcher :

timeout /t 60
setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100
ethdcrminer64.exe -epool eu1.ethermine.org:4444 -ewal Adress.Miner01 -epsw x -mode 1 -tt 68 -allpools 1
pause

Log :

234   1678   NVML: cannot get current temperature, error 15
18:33:16:250   1678   NVML: cannot get fan speed, error 15
18:33:16:862   1780   GPU 1, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:447   33c   GPU 5, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:455   167c   GPU 0, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:463   f7c   GPU 2, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:472   e60   GPU 3, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:481   10bc   GPU 4, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:496   1780   GPU 1, GpuMiner kx failed 1
18:33:17:506   33c   GPU 5, GpuMiner kx failed 1
18:33:17:516   167c   GPU 0, GpuMiner kx failed 1
18:33:17:527   f7c   GPU 2, GpuMiner kx failed 1
18:33:17:534   e60   GPU 3, GpuMiner kx failed 1
18:33:17:543   10bc   GPU 4, GpuMiner kx failed 1
18:33:17:505   1780   Set global fail flag, failed GPU1
18:33:17:559   1780   GPU 1 failed
18:33:17:523   167c   Set global fail flag, failed GPU0
18:33:17:582   167c   GPU 0 failed
18:33:17:542   e60   Set global fail flag, failed GPU3
18:33:17:599   e60   GPU 3 failed
18:33:17:516   33c   Set global fail flag, failed GPU5
18:33:17:627   33c   GPU 5 failed
18:33:17:533   f7c   Set global fail flag, failed GPU2
18:33:17:641   f7c   GPU 2 failed
18:33:17:550   10bc   Set global fail flag, failed GPU4
18:33:17:657   10bc   GPU 4 failed
18:33:17:665   177c   GPU 1, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:673   bc0   GPU 5, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:687   258   GPU 0, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:701   768   GPU 2, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:711   1170   GPU 3, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:718   e74   GPU 4, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:730   177c   GPU 1, GpuMiner kx failed 1
18:33:17:738   bc0   GPU 5, GpuMiner kx failed 1
18:33:17:746   258   GPU 0, GpuMiner kx failed 1
18:33:17:754   768   GPU 2, GpuMiner kx failed 1
18:33:17:773   1170   GPU 3, GpuMiner kx failed 1
18:33:17:780   e74   GPU 4, GpuMiner kx failed 1
18:33:17:737   177c   Set global fail flag, failed GPU1
18:33:17:795   177c   GPU 1 failed
18:33:17:752   258   Set global fail flag, failed GPU0
18:33:17:821   258   GPU 0 failed
18:33:17:779   1170   Set global fail flag, failed GPU3
18:33:17:841   1170   GPU 3 failed
18:33:17:745   bc0   Set global fail flag, failed GPU5
18:33:17:856   bc0   GPU 5 failed
18:33:17:788   e74   Set global fail flag, failed GPU4
18:33:17:872   e74   GPU 4 failed
18:33:17:771   768   Set global fail flag, failed GPU2
18:33:17:887   768   GPU 2 failed
18:33:19:613   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:19:629   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:19:738   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:19:754   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:19:848   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:19:848   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:19:957   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:19:957   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:051   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:051   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:145   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:145   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:238   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:238   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:332   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:332   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:426   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:426   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:520   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:520   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:613   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:613   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:707   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:707   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)

[notbatman]

I am so desperate that I will donate eth if i solve this....

6x 1070, asrock h81 btc, win 10, latest nvidia drivers, claymore 9.6, 1200w PSU, Virtual set to 16 gb.
Even at stock settings , the miner crashes, sometimes directly , and sometimes after 1-2 hours.
I have tried different nvidia drivers, and even tried previous claymore versions.
Tried swapping the cards around and setting in bios gen1/gen2 ( it should work out of the box )
I have connected the 2 molex connectors on the mobo and also having 6 powered usb risers.
Only time i can get it to go a bit longer is if i have it at stock, but change the Power target to around 60% for all cards.
I have a "wattman" and it says computer is taking 650w from the wall. but thats with low Power target, otherwise it is around 900.
When it crashes, 1 card Always dissapears , both from the miner and from Afterburner ( in AB its there but cant change anything because its grayed out ) resulting in having to reset PC.
Sometimes when it crashes , my monitor that is connected to 1 of the cards also shuts down.
Most of the times i get BSOD after the crash and if that doesnt happen, the whole computer freezes up.
I really want to Think there is enough Power to drive this with 1200w.

Edit : Just Before it crashes, my mouse curser is almost unmovable. Really laggy. But both cpu and memory are far from maxed out.

Any ideas ?


Log :

234   1678   NVML: cannot get current temperature, error 15
18:33:16:250   1678   NVML: cannot get fan speed, error 15
18:33:16:862   1780   GPU 1, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:447   33c   GPU 5, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:455   167c   GPU 0, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:463   f7c   GPU 2, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:472   e60   GPU 3, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:481   10bc   GPU 4, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:496   1780   GPU 1, GpuMiner kx failed 1
18:33:17:506   33c   GPU 5, GpuMiner kx failed 1
18:33:17:516   167c   GPU 0, GpuMiner kx failed 1
18:33:17:527   f7c   GPU 2, GpuMiner kx failed 1
18:33:17:534   e60   GPU 3, GpuMiner kx failed 1
18:33:17:543   10bc   GPU 4, GpuMiner kx failed 1
18:33:17:505   1780   Set global fail flag, failed GPU1
18:33:17:559   1780   GPU 1 failed
18:33:17:523   167c   Set global fail flag, failed GPU0
18:33:17:582   167c   GPU 0 failed
18:33:17:542   e60   Set global fail flag, failed GPU3
18:33:17:599   e60   GPU 3 failed
18:33:17:516   33c   Set global fail flag, failed GPU5
18:33:17:627   33c   GPU 5 failed
18:33:17:533   f7c   Set global fail flag, failed GPU2
18:33:17:641   f7c   GPU 2 failed
18:33:17:550   10bc   Set global fail flag, failed GPU4
18:33:17:657   10bc   GPU 4 failed
18:33:17:665   177c   GPU 1, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:673   bc0   GPU 5, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:687   258   GPU 0, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:701   768   GPU 2, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:711   1170   GPU 3, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:718   e74   GPU 4, GpuMiner cu_k1 failed 6, the launch timed out and was terminated
18:33:17:730   177c   GPU 1, GpuMiner kx failed 1
18:33:17:738   bc0   GPU 5, GpuMiner kx failed 1
18:33:17:746   258   GPU 0, GpuMiner kx failed 1
18:33:17:754   768   GPU 2, GpuMiner kx failed 1
18:33:17:773   1170   GPU 3, GpuMiner kx failed 1
18:33:17:780   e74   GPU 4, GpuMiner kx failed 1
18:33:17:737   177c   Set global fail flag, failed GPU1
18:33:17:795   177c   GPU 1 failed
18:33:17:752   258   Set global fail flag, failed GPU0
18:33:17:821   258   GPU 0 failed
18:33:17:779   1170   Set global fail flag, failed GPU3
18:33:17:841   1170   GPU 3 failed
18:33:17:745   bc0   Set global fail flag, failed GPU5
18:33:17:856   bc0   GPU 5 failed
18:33:17:788   e74   Set global fail flag, failed GPU4
18:33:17:872   e74   GPU 4 failed
18:33:17:771   768   Set global fail flag, failed GPU2
18:33:17:887   768   GPU 2 failed
18:33:19:613   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:19:629   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:19:738   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:19:754   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:19:848   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:19:848   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:19:957   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:19:957   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:051   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:051   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:145   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:145   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:238   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:238   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:332   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:332   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:426   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:426   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:520   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:520   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:613   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:613   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)
18:33:20:707   1678   NVML: cannot get current temperature, error 999 (an internal driver error occurred)
18:33:20:707   1678   NVML: cannot get fan speed, error 999 (an internal driver error occurred)

www.ubuntu.com, 1200W is definitely too little.

850W for mainboard and 3x cards.
850W for remaining 3x cards.

[gt_addict]

Was running 9.5 at 22.8Mh per card, now getting 24mh per card. Thanks claymore, definitely dont mind paying the devfee considering its paying for improvments to hashing speeds 

[cryptokizzy]

I am so desperate that I will donate eth if i solve this....

6x 1070, asrock h81 btc, win 10, latest nvidia drivers, claymore 9.6, 1200w PSU, Virtual set to 16 gb.
Even at stock settings , the miner crashes, sometimes directly , and sometimes after 1-2 hours.
I have tried different nvidia drivers, and even tried previous claymore versions.
Tried swapping the cards around and setting in bios gen1/gen2 ( it should work out of the box )
I have connected the 2 molex connectors on the mobo and also having 6 powered usb risers.
Only time i can get it to go a bit longer is if i have it at stock, but change the Power target to around 60% for all cards.
I have a "wattman" and it says computer is taking 650w from the wall. but thats with low Power target, otherwise it is around 900.
When it crashes, 1 card Always dissapears , both from the miner and from Afterburner ( in AB its there but cant change anything because its grayed out ) resulting in having to reset PC.
Sometimes when it crashes , my monitor that is connected to 1 of the cards also shuts down.
Most of the times i get BSOD after the crash and if that doesnt happen, the whole computer freezes up.
I really want to Think there is enough Power to drive this with 1200w.


Edit : Just Before it crashes, my mouse curser is almost unmovable. Really laggy. But both cpu and memory are far from maxed out.
My cards temp are also not capping, just around 60.

Any ideas ?

Sounds like you're either overclocking too much, or one of your risers has an intermittent connection. Shady risers do all kinds of weird stuff.