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Author Topic: 1080Ti Specific - Best mining option  (Read 315573 times)
abudfv2008
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September 19, 2017, 05:04:15 PM
 #2141

Disabling P2 on 5x1080ti (3 diff brands) nets me 1-2% increase in hashrate at expense of 2-3% power usage - not worth for me, especially that it matters mostly in memory intensive algorithms which, as all we know, 1080ti are lackluster with.
P0 it's a question of stability when working close to max. P2 will crash when miner exit, P0 won't.
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September 19, 2017, 05:09:47 PM
 #2142

So I had a three card riser-less build (well actually one was on a riser since the AORUS are huge, no issues with this setup)

1080 ti / 1080 ti / 1070  mini

I moved to a 6 card riser build and now I have this issue . . any ideas?
(1070 mini 1070 mini 1080 TI 1080 TI 1070 mini 1070 mini
software or hardware and then what?

This should be a 3k average sols rig

Added more details below ////




2x 1080 TI + 1070 earning the same as 2x 1080 TI 4x 1070

(1.8k sol rig avg)


3k sol rig, avg 2.6k due to error, but its as if all 3 of the 1070s on the second PSU (connected add2psu PSU1 to mobo/cpu/all risers +pata to Add2psu / PSU2 mobo to add2psu+3x 1070 mini


nvOC_19 on both . .



Asked this in another thread but asking here as well if anyone could help me figure out what this issue is . .


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September 19, 2017, 05:51:43 PM
 #2143

Disabling P2 on 5x1080ti (3 diff brands) nets me 1-2% increase in hashrate at expense of 2-3% power usage - not worth for me, especially that it matters mostly in memory intensive algorithms which, as all we know, 1080ti are lackluster with.
P0 it's a question of stability when working close to max. P2 will crash when miner exit, P0 won't.

Hello, this is my first post however I follow this forum from a while (and thanks for your shared experience Wink ). So please be patient if I share too obvious things.

I investigated the P states a bit earlier so let me share my experience. When you start or stop your miner then the GPU jumps to P0 for a second otherwise it runs in P2 during mining.
The P2 state has lower frequency settings than P0. When you OC your card then you set offsets. When you start/stop then the GPU switches to P0 and the same offset is applied to the higher base frequency. This leads to crash as it is too much to the card.
I have Asus 1080Ti Strix OC cards and EVGA 1080 (not Ti) FTW2 cards. With these cards I saw that the base core frequency is the same for P0/P2 but the memory is reduced to 5 GHz on the Asus and 4.5 Ghz on the EVGA. When I overclock the 1080Ti with +500 mem then it reaches the operation frequency (5.5 Ghz -> effectively 11 Ghz due to dual rate). So the OC sets the factory maximum in P2.
You can check the absolute frequencies in Afterburner on Windows and with nvidia-smi on linux. The base frequencies mapped to the P states are burnt in so we cannot change them. Sad
The crash happens during the short P0 period when the GPU raises the memory frequency to the factory max, 5.5 GHz and it gets the OC offset as well which results 6 GHz which is too much to the GPU.

Here you can read more: https://devtalk.nvidia.com/default/topic/1010856/linux/how-to-force-performance-level-3-driver-381-22-with-gtx-1080-ti-/3

Nevertheless let me ask you how can you fix to the P0 (or any other) state on Pascal GPUs? I have both Windows and Linux machines so I'm interested in both OS.
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September 19, 2017, 06:25:24 PM
 #2144

Nevertheless let me ask you how can you fix to the P0 (or any other) state on Pascal GPUs? I have both Windows and Linux machines so I'm interested in both OS.
Use Nvidia profile inspector to force p0. P0 is just to fix MC. So that it won't exceed stable MC on closing the miner. With P2 stable MC while running miner is 5800 (for example)?, and when closing miner for a short period it jumps to 6000 (for example) and driver crashes (or the whole system freeses). Thats all.
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September 19, 2017, 08:00:04 PM
 #2145

Trying to setup dual PSUs on my mobo... I received my 2nd PSU today and was supposed to receive the ADD2PSU connector today too but USPS delivered to the wrong address and they are trying to find it... I doubt we will have any luck receiving it so I'll probably have to reorder it.

Anyways, I want to hook them up and turn the other PSU on manually.. What would be the most reliable method in doing this? I'm running cables now. Thanks

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September 19, 2017, 09:06:09 PM
 #2146

Connect pin 4 and pin 5.
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September 19, 2017, 11:15:24 PM
 #2147


evga has a tester that you just plug into your mobo cable that fulfills this function just plugin the only piece thatll fit into your mobo connection thats in your box

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September 20, 2017, 12:40:23 AM
 #2148

alright, this is a nightmare.. i got the mobo running with both PSU's now..

my initial problem was that i could only get 4 running and the fifth 1080ti would cause a "Code 12" error.. insufficient resources.

so i did some research and found that I should change "pci e" settings to Gen 1, which I dont have but i do have the PEG0 and PEG1 "Max Link Speed" and I set those to Gen1.. It also said to change "Above 4G Decoding" to enable, so I changed that from disabled to enabled...

Now all 5 cards are working, but they are running like absolute garbage. The power is all over the place and they are getting 200sols, 300sols and 400sols, with maybe 1 at 600sol/s

I'm going to throw this rig into the street

my mobo is the MSI Z270 SLI PLUS (MS-7A59)


any help would be appreciated. Some say to install to windows 8 or 10, I may just buy a copy of windows 10 and try that out. Currently using Win7 x64

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September 20, 2017, 12:42:45 AM
 #2149


Awesome, thanks man, was using a wire but it had me scared it would fall out after awhile.. Just found it on the bottom of the box, works perfect!

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September 20, 2017, 02:37:16 AM
 #2150

ran out of ideas, installing windows 10 now... will report back results


Issue recap -
4 1080ti GPU's run great/fine on windows 7

Installed 5th, wouldnt work, code 12 error. Changed bios settings shown above and they all showed up and will run, but will run like complete shit. Power % shown all over the place, and some cards capping out at 200 or 400 sol/s when running Equihash or 20-30mh/s with skunk..

Now attempting to install windows 10 pro x64 and ensuring nvidia drivers are up to date



Edit: Windows 10 install did not help at all..
Ran each card individually, with their own riser and cords and they worked on par with the 680-710 sol/s, but the moment I go from 4 to 5 it runs worse than if I had 3

Edit: Now I can't get 4 cards running, 2 on each PSU... originally had 4 on 1 PSU.. feel like selling alll this crap now lol

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September 20, 2017, 09:52:54 AM
 #2151

What do you guys mine atm?
Ich went with nicehash the last weeks because of idleness, but because of the relatively low ETH price
I gain very little profit.
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September 20, 2017, 10:06:53 AM
 #2152

sniffdog, 3.8/card last day,not happy.
How do you get $5/card?
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September 20, 2017, 10:08:00 AM
 #2153

ran out of ideas, installing windows 10 now... will report back results


Issue recap -
4 1080ti GPU's run great/fine on windows 7

Installed 5th, wouldnt work, code 12 error. Changed bios settings shown above and they all showed up and will run, but will run like complete shit. Power % shown all over the place, and some cards capping out at 200 or 400 sol/s when running Equihash or 20-30mh/s with skunk..

Now attempting to install windows 10 pro x64 and ensuring nvidia drivers are up to date



Edit: Windows 10 install did not help at all..
Ran each card individually, with their own riser and cords and they worked on par with the 680-710 sol/s, but the moment I go from 4 to 5 it runs worse than if I had 3

Edit: Now I can't get 4 cards running, 2 on each PSU... originally had 4 on 1 PSU.. feel like selling alll this crap now lol

In my experience that could be motherboard. Some times the same motherboard need different settings.

You need to play with dmi-pci settings in bios. Try this:

1) dmi speed gen 1, pci speed auto
2) dmi speed gen 1, pci speed gen 1

also some mother boards got 2 different setting for pci slot. Play with this settings also.
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September 20, 2017, 10:18:09 AM
 #2154

Tried to set up Sniffdog on my PC running a GTX 1080 yesterday but no luck. The miner window closes right after it opens. Can't figure out why (unless there's some obscure code in there that prevents it from starting on anything else than a 1080Ti?)...

I have Win10, Powershell v5... any ideas?

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September 20, 2017, 10:25:06 AM
 #2155

Tried to set up Sniffdog on my PC running a GTX 1080 yesterday but no luck. The miner window closes right after it opens. Can't figure out why (unless there's some obscure code in there that prevents it from starting on anything else than a 1080Ti?)...

I have Win10, Powershell v5... any ideas?
Tried to run it in administration mode? In my system it ask for adm. perm. for PowerShell.

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September 20, 2017, 12:25:37 PM
 #2156

sniffdog, 3.8/card last day,not happy.
How do you get $5/card?

sniffdog, 3.1 per card last day, just 18 hours worked, cause some night troubles.
Not $5/card, but at least better than zec.

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dragonmike
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September 20, 2017, 12:45:05 PM
 #2157

sniffdog, 3.8/card last day,not happy.
How do you get $5/card?

sniffdog, 3.1 per card last day, just 18 hours worked, cause some night troubles.
Not $5/card, but at least better than zec.
Can you possibly share your settings please?
Is that on zpool, MPH or Hashrefinery by the way?
I'd like to get Sniffdawwgg to work on my rig of 1080's. Wasn't able to find where the intensities where hidden in the powershell scripts but maybe folks here can shed some light on that.

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September 20, 2017, 01:39:19 PM
 #2158

sniffdog, 3.8/card last day,not happy.
How do you get $5/card?

sniffdog, 3.1 per card last day, just 18 hours worked, cause some night troubles.
Not $5/card, but at least better than zec.
Can you possibly share your settings please?
Is that on zpool, MPH or Hashrefinery by the way?
I'd like to get Sniffdawwgg to work on my rig of 1080's. Wasn't able to find where the intensities where hidden in the powershell scripts but maybe folks here can shed some light on that.

I think my settings will be useless for you.. I just added my account on MPH to default settings, delete couple algos(I've been crashed on them  Huh), and set interval to 300 after benchmarking. That's all.
I use all available pools, ahashpool and your list.

By the way, I tried to find intensities too, but not success on it... I think my cards crash on some algos, cause intensity is too high for them.

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September 20, 2017, 02:27:17 PM
 #2159

Same here,most of the algos and crashes at least once a day
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September 20, 2017, 02:59:51 PM
 #2160

sniffdog, 3.8/card last day,not happy.
How do you get $5/card?

sniffdog, 3.1 per card last day, just 18 hours worked, cause some night troubles.
Not $5/card, but at least better than zec.
Can you possibly share your settings please?
Is that on zpool, MPH or Hashrefinery by the way?
I'd like to get Sniffdawwgg to work on my rig of 1080's. Wasn't able to find where the intensities where hidden in the powershell scripts but maybe folks here can shed some light on that.

I think my settings will be useless for you.. I just added my account on MPH to default settings, delete couple algos(I've been crashed on them  Huh), and set interval to 300 after benchmarking. That's all.
I use all available pools, ahashpool and your list.

By the way, I tried to find intensities too, but not success on it... I think my cards crash on some algos, cause intensity is too high for them.
Ah interesting, I didn't realise Sniffdog was switching between pools as well as algos within one pool.

Annoying to read about the crashes though. Same thing happened to me all the time using Nemosminer. In a way I find comfort in seeing I'm not the only one experiencing those issues.

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