Topic: EZ 6x 1080 TI GPU Mining Rig Build 4400 Sols / 1 PSU (Read 1698 times)

this is an excellent post // yes it is unless its been changed at some point

Most cards with 2 PCI-E power connectors won't run AT ALL with only 1 connector attached.
I have heard of exceptions, but never SEEN one to date.

 The issue with using SATA to power risers is that the PCI-E bus is specified to allow up to 75 watts power draw from the GPU, then the riser ITSELF has to do "voltage conversion" to run that 75 watts from a +12VDC only feed which will eat a few watts as well, while the SATA power connector ITSELF is only rated to provide 54 watts MAX at +12VDC.

 There is no way to guarentee how much of it's power a given GPU will draw from the PCI-E power connector(s) and how much it will draw from the bus, so there is a definite risk of overloading that SATA power connector by powering a riser with one.
 If the card splits the power draw so that it's pulling less than 50 watts or so from the PCI-E bus then it will work reliably - but there is NO WAY to make the card do that for SURE unless it's a low power card that draws ALL of it's power from the PCI-E bus (most 1050ti and lower) and you turn the total card TDP down to 50 watts or less.

 This is not an issue for MOLEX (150+ watt rated power connector) or PCI-E (192+ watt rating on the connector, even though PCI-E spec says 75 they WAY underrate the connector).

 I have not worked with Corsair modular power supplies, but most power supply manufacturers design their "peripheral" and "sata" ports on the PS to be interchangeable - might be worth checking to see if you can run Molex from all of those ports on your Corsair.
 It definitely works on the Corsair AX860/AX760 but those are Seasonic-built Corsair variants on the Seasonic SS-860/SS-760 models and most Corsair PS models are manufactured by companies other than Seasonic.

 Isn't the Zotac 1080 ti Extreme a "8 + 8" powered card?

I have a question. In your video you use VGA (8PIN) in PSU, and then 8pin+6pin in the GPU. (1 cable pr. GPU).
I'm having problems with a Zotac 1080 ti extreme. (6x GPU + 2x 1000W psu Corsair HX1000i)

GPU powered like this:
GPU --> (6+2pin + 8 pin) --> VGA (8PIN) in PSU (1 cable pr PSU).

Riser powered:
Riser --> 6 pin --> SATA-6PIN cable (from Corsair) --> PSU. (1 riser pr. sata

First question:
Will 1 cable to GPU be enough if you want to OC it? (1 8pin cable only provides 150W right?)
Or should I use 2 separate 8 pins to power 1 GPU)

Second question:
Should I power Rises in another way? I read about fire hazards etc.
Should I power risers like this?

PSU --> VGA (8pin) --> 2x (6+2 pins) powering to risers.



Or can I power like this?

(2 pcs 8pin to dual 8pin pr GPU.)
1x 8 pin in PSU, and 1x 8pin in GPU (leaving 1 (6+2)pin un-used)
1x 8 pin in PSU, and 1x 8pin in GPU + the other 6 pin in riser).

This would make me possible to power 3x risers, and 3 1080ti from 6 outlets in PSU. (2 outlets pr. GPU)
(And no SATA or MOLEX problems powering the risers)


https://imgur.com/o0XIRDf

Yea ive already got a metal wire shelf with everyrhing on but I would like to specifically build a frame for it all. Just another step to tick off on this whirlwind of a hobby 

Lol forget a mining specific frame, I just get a small 2 tier shelf that's stackable for $25. Everything gets secured just as well as a "mining specific" frame. Literally takes less time to put together too lol.

Couldn't agree more! And the cooling on my SC2's shit on MSI Armors, 3 fan gigabytes etc. I Freaking LOVE my SC2's.
I have to do mixed rigs because of those 8+8 giants with my 1600w EVGA because of it. 2 8+8 cards with 4 8+6 cards. Hate those things.

The Gigabyte "Windforce" 3-fan model works OK - I've got one - but it doesn't cool much better than my EVGA SC 2 fan model, and the fans are the standard junk Windforce fancy-name sleeve bearing type that die too fast - and a 1080ti NEEDS that cooling if you're running it at more than 60-70% of TDP.

 Up side - like the EVGA SC - it's a 8 + 6 model not a 2 x 8 model like the Aorus or the Duke or the EVGA FTW (among others).

Ive said exactly the same thing. Its a great frame but not worth that much. Especially when shipping is $90 to the UK. All I need is the lengths of each aluminium section and I can get rhe materials and build it.

I haven’t used the MSI duke the gigabyte tri fan works well for me better than a lot of the basic blowers
If you want to also mine ETH for Nvidia the 1070 is a better choice than the 1080 ti

right now i have 2 in my MIND.

either MSI duke with triple fan or GIGABYTE the triple fan for 1080 TI

which one you suggest if i want to mine eth or other algo ?

I'd recommend to sub for a 1080 TI either best rated or best price as the cards I used in the video

http://amzn.to/2iGVMNH
they've gone up $79 from their original retail, still could potentially be worth it especially if you like green I guess xD

https://youtu.be/1tjhbYAXu6Y

11 cents per kwh

hey if you make a similar quality frame for less I'll buy it

Thanks my friend

~5k and $25-40 bucks a day with all the crazy factors of crypto + good efficiency & density

2x 8 pin is a PITA, I just keep 20 of those 6 pin to 2x 8 pin adapters on hand now because its delayed some builds a week lol

my MSI Aero cards are my favorite TI's especially because they had such a low price earlier this year (700 or less I bought some BNIB for 650)
150 core
500 mem
200 watts
on DSTM stable 720 sols average 3.6 sols per watt

Nice post though this is a really good argument for the evga SC, maybe I shouldnt have sold mine xD

hashrate of asus ? hashrate of giga ??
the same

@QuintLeo
Thats a real argument for the EVGA SC 1080ti Doesn't heard of it before 

 I like my EVGA SC - probably the best 1080 ti that does NOT need 2 x 8-pin power.

 Gigabyte Aorus at 175 watts was also about 685 sol/s but only runs about 60 C for the one in my gaming machine (80F ambient in a well-cooled case).
 The other one I have in a mining rig (82F ambient) is running 220 watts 745 sols at 50C (the fans at 80% are definitely overkill and I should turn them down a lot).
 (edit)  That's at +100 core / +100 memory, higher memory settings gave REDUCED hashrate (I think the Aorus "overclocks" the memory by default), higher core was long-term crashy.

For anyone interested, here are the 1080ti I have and optimal settings I use to achieve stated hash rate at 72+hrs stable;
All cards are +100/+550 with fan min 40%. I do not have time to fine tune.

Make_Model - W - Sols - Sols/W - Temp
MSI Duke: 180 - 681 - 3.70 - 60°C (outside lane)
ASUS STRIX: 190 - 674 - 3.56 - 67°C / 52°C (outside lane)
EVGA SC: 175 - 685 - 3.93 - 65°C
Inno 3D: 185 - 671 - 3.54 - 67°C

EVGA SC Black is the best 1080ti I own and I have three of them. It was also the cheapest purchase, smallest footprint and 2 slot width.

https://www.amazon.com/MSI-GTX-1080-AERO-11G/dp/B06XXGNZB3
 is the GPU he is using in the video, but like any blower card the cooling is less effective than a good fan-based card like the Aorus or even the EVGA SC.
 ASUS makes a very similar model if you LIKE the blower cards, and IT tends to be in stock more regularly - and left off the DVI connector for MUCH better cooling airflow and somewhat better temps.
 Shouldn't be an issue when it's being run at 80% or less of TDP (200 watts on every 1080ti I am aware of is 80% TDP, but there might be a few out there that have a default TDP higher than 250 watts) but cooling on a 1080 ti tends to get painfull if you are pushing the card and it's NOT a good high-end cooler card like the Aorus (the MSI Duke mentioned as an alternate should also have very good cooling).

Awesome post, cheers for the info!

Any chance you could put the total you paid for the rig and what sort of returns you are getting atm?

Might help others decide if they want to follow along with your selections

Frames $100+ is pure price gouge.

Nice video as usually . But frame! for 400 bucks is too expensive. 110$ PSU + 6 risers of 5$ and 3 fans for even 10$. So just alluminium frame for more than 200$ ! The cost of materials is about 20-30$ maximum and the work to made it no more than 50$. Also fans of 4500 rpm - it like a Boeing at take-off

How much do you pay for your electricity?

Hye,

Just watch your vid,

how much in total for having mining rig exactly like in your youtube?

because seems cant find exactly that nvidia 1080TI you using

http://amzn.to/2jwsQI2 ? different with your video ?

 I wouldn't go with Corsair - but a pair of EVGA G2 or Seasonic X units in the same price ballpark would work for me.

 My current B250 Mining Pro is running a pair of G2 850s and is specifically set up to (eventually) run 6 x 1080 ti before I add a 3'd PS and more risers eventually - and I got them on that Newegg sale at $109 each.

Turns out they can’t do anything on the shipping price and offered a very minimal discount. Had a good look around locally and can source almost the exact same box section and fixing system for less than half the cost. Looks like a diy build is coming  Just need dimensions/measurements of the box sections in their frame now 

The EVGA 2-connector cables don't have enough reach to do that, but from a power draw standpoint it would be fine.
You could use an "extender" cable to make it work - or just plan on powering the risers from MOLEX instead.

Question about that EVGA 1600 T2,
If I was to use GTX 1070 TI's could I use each of the VGA power slots to power both the 8 pin on the 1070 TI card, and use the six pin to power the Riser? with just one of the VGA slots?
thus allowing that one power supply to power 9 (undervolted) 1070 TI's along with 9 risers using only the available VGA slots?

Awesome build. Good job Vosk. Your mining rigs are always so unique and entertaining. Tell me one thing tho, with that EVGA PSU, are the 6-pin cables marked as "CPU" useable to power PCIE risers or even the GPUs themselves?

Hopefully they can make something happen for you, would be cool if they offered a package that as you said needs a bit more assembly but more compact and affordable to ship overseas! Let me know how it goes I'm curious

thanks

Definitely something I can look into, is this a possibility with smOS? my understanding is that the card receives its PL from smOS then begins to mine --- if they pulled max wattage the PSU should kick off prior to an issue arising from the splitting and even so

with these cards do you think 2 1060 3gb could pull enough split on one pcie cable to cause an issue?

/// wouldnt you rather split a pcie than split a sata  -- not giving you attitude or anything serious questions

I agree on the PSU, the point was just if you want minimal parts / simplicity here's an option --- if its your first rig build I think a single PSU setup is less daunting than a dual psu setup or pico psu setup

I'm all for a discussion on breaking down some numbers for each card -- what's the strix produce @ what power consumption

Thanks man really appreciate that, thanks for watching

haha coming soon xD Hoping to get that video out in the next week as part of my december farm update, anything in particular you want me to focus with on it?

Liking the frame. Im after one in the uk but shipping from paralell miner is $90  Ive emailed them about maybe finding a cheaper method or even flat oacking and i assemble it myself  but no reply yet. I wont need the risers just the frame and fan board.

thanx for sharing the video
but i can point to the few points if I may
the cards - man, how you can even compare asus turbo and asus strix? from all cards you have there - there is only one card which worth its price - strix. it just much better for everything - clocks, noise, tempertures ad so on. if you will flash it with OC bios it will outperform all other cards you posted by 15%, for the same price!
and one more - the PSU, it just no need to pay this price for that psu. Take two 1KW Corsais for $300 and have 2KW of power instead 1.6KW for $400+
that's all)

nice setup and nice video! Well done!

Slightly OT but I'm waiting for that mining shed video Vosk I'm lacking capacity for any more rigs ATM

Great video!

Though I'm not sure splitting cables should be encouraged to newbies - which I assume the video is mostly aimed for.

The problem comes when a couple of cards crash after a few days or even weeks and the miner restarts (manually or automatically if set up that way) so the crashed cards will mine at default settings, at 300W or whatever the default power limit is for your cards. Can be annyoing and even dangerous, especially with all the splitting. I'd definitely take a thermal imaging camera if you can get you hands on one and look at how each cable is doing after hours of load, maybe even trying different algos and power limits.

Hey guys put together my latest build today and shot a video on it. As always all credit goes to the awesome bitcointalk community, without everyone here and the immense amount of knowledge I never would've gotten to the point of building my own mining rigs

https://www.youtube.com/watch?v=zHv6meddj4o


Thanks to Citronick for help with the OC settings (giving me a better baseline)

Settings used in smOS
EWBF smOS Settings
miner.exe --server zhash.pro --user znkPcNtQTKfBkwPqnQBdKRuifeVejrEhjRU.msidirewolf --pass x --port 3058 --cuda_devices 0 1 2 3 4 5 6 7 8 9 10 11
///
200 Core (lower if crashing)
500 Memory (lower if crashing)
200 Watts (raise or lower if desired)

I still could fine tune this further and I'm always open to feedback on how I could improve this build in the future.


1080 TI RIG FULL PARTS LIST available to buy on Amazon
https://goo.gl/Jyw38u Parallel Miner Rev2 Frame (Shown)
https://goo.gl/k1RBQB Parallel Miner BareBones (Cheaper)
1080 TI (6x)
http://amzn.to/2AmqUtU (Similar)
http://amzn.to/2ndk32I (Alternate)
http://amzn.to/2ngQEF0 (Alternate)
http://amzn.to/2i1AUAg (Alternate)
PCIE Risers (6x if needed)
http://amzn.to/2hUHeJK
Motherboard
http://amzn.to/2jwsQI2
CPU
http://amzn.to/2AatLZe
Ram
http://amzn.to/2A8rJrV
USB Harddrive
http://amzn.to/2zqwlGS
http://amzn.to/2Ad58bG (Better price Alt.)
PCIE 1x 6 pin to 2x 6+2 pin
http://amzn.to/2i5vJ65
Power Supply
http://amzn.to/2neEuwj (Shown)
http://amzn.to/2i2m2BC (Alternate)
Felt + Rubber Pads
http://amzn.to/2A9ykmv
240v/PDU C19/C20 Power Cable
http://amzn.to/2AgXIGK

EXTRAS & USEFUL ITEMS TO HAVE
Zip Ties
http://amzn.to/2zqZgdO
PC Screw Kit
http://amzn.to/2i446Xq
Mining Shelf Rack
http://amzn.to/2zpnjtx (Black)
http://amzn.to/2ztA5HD (Silver)
Arctic Silver Kit
http://amzn.to/2AdY2nC
Powerline Ethernet Adapter
http://amzn.to/2hRGNjw

Download smOS
https://goo.gl/jMxTSS
Download HDD Raw Copy
http://www.mediafire.com/file/2ccebvpyuv87r35/HDDRawCopyToolSetup.exe

//

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