Topic: Sixth alt coin thread I forgot to mod last thread. - page 126. (Read 80191 times)

1) Xmr with Vega is 150 - 170W at 1800h/s if you do registry mods. If no mods, 1500h/s at same power consumption. Numbers pulled from my vega 64 rig. 1080ti is $2.50 a day doing zcoin at 130W. Usually they take 200W at 80% PL for most other algos, zcoin is an exception. My vega 64s are making the same amount as 1080ti these days.


2) In my opinion yes, especially since 1080ti can be found close to MSRP. Otherwise 1070s at MSRP gives slightly more sols/$, but twice the space and management. I'll still stick with 1080tis, because having half the problems is great. Any model will do, but FE 1080tis need to be below 80% PL if you live in a hot place. I got my FE 1080tis at $659, but regret not paying a little more for a good cooler like Evga SC2. Because pascal is sensitive to heat, my FE 1080tis are 2-3% slower than my better cooler 1080tis.


3) Vega56 performs within the margin of error of a vega64 in monero. I guess it will be a few percent worse in compute bound algos. Just go with 56s

I can give  advice on the 1080ti
if you are in the usa and can get these without sales tax.   they are really good deal.

 https://www.evga.com/products/product.aspx?pn=11G-P4-6390-RX

679 plus 15 or so to ship  under 700 with a 1 year warranty and evga is very very very good on warranties.

most 1080ti's are good.

so unless you want a water block version try to get them under 700 usd.

of course if you live in a different country they may cost more.

when I am really lucky I get a good deal on eBay

I'm looking to mine either equihash (zec/zen) and/or cryptonight (monero)

Thinking of 1080ti for equihash (for best sol/watt and good mining density and hash per price?)

Also thinking of AMD Vega for cryptonight.

I have some questions

1. How is profit per power consumption currently for mining monero with vega vs mining zec/zen with 1080ti?

2. Is 1080ti the way to go if i got nvidia with equihash? Which brand/model 1080ti?

3. How does Vega 56 compare to 64 for monero? (price per card, hashrate, power consumption, and hashrate per power consumption)

This company on Alibaba quoted me $480 USD for a 3 phrase 11KW PDU with power metering and remote on/off capability. They also got a 22.2KW version with power metering but without the on/off ability.


https://digipower.en.alibaba.com/?spm=a2700.details.shnsopsi9.1.39727d6fXC748T


It's alot cheaper than branded alternative, but reliability is unknown. I'm expanding my farm to offer hosting service for friends next year and will grab some to test in the future.


Also I'm flying back to my remote farm in 2 weeks to add 15 more 1080ti and a few vegas. After expansion I will be using 26KW out of 40KW power limit. Heat is starting to be an issue because my total airflow is only 3200 CFM, and it's Malaysia. 32 degrees in the day. If I mine Skein, some 1080tis are reaching 77 degrees near the back of the farm. They are all mining zcoin now which has similar profit but use 40% less power.

pics you requested , this is me standing right where you pointed, I cant get this phone camera to do better perspective
its and iphone six any tips on how to get better panoramic views ?




sorry about the mess lol


right corner of room ,from door


rafters from same perspetive


other side


left side with the three fans


box to hold power switches to door and underneath it we will put the three sensors for each side
so its two boxes like this all off one 20amp breaker split two ways, six switches





two wires one for each side 12-3 AWG


The handy man did not want to work in the heat, and I did not want to turn off my rigs lol , so as a compromise we hooked up one of the fans
to an extension cord and within 2-3 hours it went from execisvely hot to a balmy 70 degrees, I checked again this morning 66 degrees , but I'll get a better thermostat tmw


his phone rings non stop lol

The gravity intake I ordered is 19 inches ,vs the 26 inch one that is way to big for my roof.  So i need a matching size flex duct I see.

I see that makes a ton of sense attaching the flexible ducts to bring the outside air close to the ground, on the placement of the gravity vents ? Why so close to the edge of the roof ? I was going to put then in line with the exhuast fans just along the same end of the roof
as your diagram

Thanks allot for the tips

btw we turned on just two of the fans today and I kid you not it was AMAZING , the temps on my GPUS went down from 90 degrees and 100% fan to as low as 68 degrees 45% fan for most cards !
some cards are at 74% still but fan speeds can now be set to auto instead of the fixed 80% fan i was using.

room tempreature is basically equal with outside now around 75degrees compared to low 100s

Another thing I notice is there is no more heat transfer to the metal racks, before i would nearly burn my hands on the racks sometimes they were so hot, not they are cool to touch.

My 4k PSUs also were very hot and needed powerful fans or they would shut down, now I can even turn off the fans and they are cool to the touch, I might try my hand at dual mining again when all the fans are running to see what temps look like.

All this is cooling around 100 GPUs with basically one 1500CFM exhaust fan , no gravity intake yet in a poorly insulated garage , these fans are amazing.  I say one fan because the other one still has a tarp over it, we did not finishing replacing
the shingles on the other two before it started to rain and rain was getting in the garage so we tarped it up till tomorrow.

One finaly thing these Dayton fans are high quality, super quiet , you cant hear them, I actually wonder if they are running at all or at full speed , I guess I'll play with them more when we bring down the controls.
[/quote]  answer to bold  is  the 20 inch flex duct was 25 feet long  it was 185 usd so  if you cut it to 12.5 feet for two intakes  and the roof is tall  it won't go that low

the 16 inch flex duct was 12 feet long and  was 58 bucks.

it looks like you would need the 20 inch duct  and ½ the length is 12.5 feet.

I would love for the 2  flex ducts to be  3 feet off the ground.  wait for a photo
can you take the photos I ask for below.

Used on ebay

I'm using this one:

https://minerparts.com/product/pcie-4x-to-ngff-m-2-adapter-with-4-pin-power-cable/

I don't bother connecting the power cable to it (not needed since the riser is powered).

The trick with this one (and most other M.2 adapters I'd imagine), is to carefully center it in the M.2 slot on the motherboard.  These cheap M.2 adapters are not precision made and the center "groove" that is supposed to center the adapters in the slot is a little wide, so if you just push it in, it might not be perfectly centered.

As long as ATX PSU power all the risers first - synching mobo and active risers, turning the server PSU for all the GPUs next, rig runs fine.

2nd scenario, GPU and risers are connected to the same PCIE cable, like a Y cable. This work fine with PICO solution.

3rd scenario, dual server PSU with Y cable in 2nd scenario, and dual PSU powered by a single power cord with dual C13 power plugs (Y power cord)

what m.2 adapter are you using? nice work man

How are you all synchronizing a rig using 1 atx PSU and 1 server PSU?

Thanks!

God damn its expensive tho!

There arent any cheaper alternatives?
I'm looking to consume about 10k-20k W to start with!

cryptotore - you could take a look at Eaton ePDU G3 Managed models: http://powerquality.eaton.com/ePDUG3/ which provide remote outlet switching. Just make sure to update firmware and change default credentials while on-site because I`ve had problems to do that remotely.
Eaton provides 1-phase as well as 3-phase PDU's (hint - 3-phase PDU's can be connected to 1-phase source just by modifying the connector).

APC also provides switched rack PDU's: http://www.apc.com/shop/lv/en/categories/power-distribution/rack-power-distribution/switched-rack-pdu/_/N-17k76am

Hi mate!

Could you give me some advice on PDU's?

I'm planning to setup a small mining farm in a very remote location, it will take me 8 hours to drive to the location.
I'm looking for a solution to remotely restart the miners if needed.

I believe it exist PDU's which can remotely power off/on the miners, but I don't know what these are called.

I'm located in Europe, and I need something that works on 230V.
I might be able to get 400V 3 phase, but Im not sure yet.

Could you help me out? What do I need?

Ok thanks I though I should screw them down. 

I will also tar them as suggested in this thread

 Ugh I worried about the fact that the sensors are close to the fans for a reason, the problem is I would never be able to reach them if they were up in the rafters : garage roof is at least 15-20 feet high from the inside
I plan to mount  them right against the wall at the same level of the miners. 

-Yup i got two rolls of 100ft conduit all meaured up and good to go.


Yeah it was an oversight on our part , for now with the fan that is on , it does not seem to be and issue thank god

The gravity intake I ordered is 19 inches ,vs the 26 inch one that is way to big for my roof.  So i need a matching size flex duct I see.

I see that makes a ton of sense attaching the flexible ducts to bring the outside air close to the ground, on the placement of the gravity vents ? Why so close to the edge of the roof ? I was going to put then in line with the exhuast fans just along the same end of the roof
as your diagram

Thanks allot for the tips

btw we turned on just two of the fans today and I kid you not it was AMAZING , the temps on my GPUS went down from 90 degrees and 100% fan to as low as 68 degrees 45% fan for most cards !
some cards are at 74% still but fan speeds can now be set to auto instead of the fixed 80% fan i was using.

room tempreature is basically equal with outside now around 75degress compared to low 100s

Another thing I notice is there is no more heat transfer to the metal racks, before i would nearly burn my hands on the racks sometimes they were so hot, not they are cool to touch.

My 4k PSUs also were very hot and needed powerful fans or they would shut down, now I can even turn off the fans and they are cool to the touch, I might try my hand at dual mining again when all the fans are running to see what temps look like.

All this is cooling around 100 GPUs with basically one 1500CFM exhaust fan , no gravity intake yet in a poorly insulated garage , these fans are amazing.  I say one fan because the other one still has a tarp over it, we did not finishing replacing
the shingles on the other two before it started to rain and rain was getting in the garage so we tarped it up till tomorrow.

One finaly thing these Dayton fans are high quality, super quiet , you cant hear them, I actually wonder if they are running at all or at full speed , I guess I'll play with them more when we bring down the controls.