The 1080's on Craigslist have been popping up like mad recently.  My friend returned some of his store bought cards to buy the cheaper ones.

We are loving the power coming from 1080 machines.   Quite a large amount of hashrate density.

Do you have the entire unit closed up with those temps?

With the case closed, the cards were thermally regulating and running hot.  They don't have the CFM.   Simple to replace them.   IDK why they are so weak.

Then again, these are running a higher TDP than a lot of the newer cards;  but... he wanted hash density in the machine;  plus better resale value in the future.  I don't knock that at all.

the problem is airflow;  the cards want to push the air out of the back of them, so if you have them mounted facing both directions, you are working against that flow with the ones mounted in the mainboard (as one is in this photo).

I need to repair a riser so we can mount that one card with all of the others.  Till then, it sits there;  Its being run open-case with a fan blowing down on it from the top.


Higher flow fans are needed for the front panel.

Im jealous of that back panel.   I think i can finagle something like that.  quite a nice way to do it.  Gets airflow sorted very well too (nicer to have it out the back instead of front).

These are AWESOME cases.   Hands down, best bang for the buck.   Tomorrow I am installing my home/Gaming PC into one of these cases.   You can actually properly manage airflow, compared to a typical CPU case.


The machine is as follows:
ASRock H97 Anniversary
Celeron 2.6Ghz cpu
6Gb DDR3
200Gb SSD
Rosewell 4U EATX case
2x EVGA GTX 1080 FTW
1x EVGA GTX 1080 SC
1x PNY GTX 1080 Reference style
1x Dell-OEM GTX 1080 Reference style


My comments about building a miner into the case:
*For the novice/intermediate id suggest sourcing the GPU rack a member here sells.  Eyeballing it all, is a PITA especially when only using hand tools (hacksaw, drill, riveter, etc)
*You have to cut and modify the front assembly that's removed initially (to fit the video cards) to be able to use the front fans the case comes with.  *When I finish modifying this one, I'll post up photos of how I did it using all the OEM case hardware/components and still fit the GPU assembly.
*Be sure to properly insulate and stand-off the risers.  I learned the lesson by riveting them directly to the support bracket.  Shorts to ground suck for diagnosing.
*Always, ALWAYS, install the first card, and get it fully running and hashing;  then add a second, and so-on.  Don't try to do them all at once.  This is doubly so for GPU setups over 2 cards.  You get less driver issues.
*You can't use the intermediate set of fans in the case with larger/longer GPU and power supplies.  The shorter cards (single fan nvidia, or RX series cards) seem to be able to fit behind it.
*It's easy to attach hardware to the casing like rails to screw the GPU's to, just use rivets if you don't need to countersink the bolts for a tight-fitting rack.


After it was up and hashing;  holy crap.  The 1080's put out a LOT of heat.  They began to thermally regulate pretty quick.  The casing needs more airflow (I am working on the fans for the front now) and it's currently running as an open rig.... plus, its not in the data center yet.

Feel free to flame;  the internet is good for that.  I take it rather well

@Phillip  I can't bring myself to sell my BTC... I feel for ya.  Every time I absolutely needed to sell some (to make ends meet) it was always a heart-ache and painful feeling.   The last thing I want is FIAT in place of my BTC.



Just spent the last entire night (8PM-now PST) assembling a 6 card GTX 1080 rig.  We had originally agreed 1070 would be the best fit, but with the recent price drop, he went ape$hit buying up all the used/open box 1080's he could get, he even haggled Amazon down on the 2 rack cases (minor defect or refurb cases)....   But it was a surprise when I saw a stack of 1080's last night.    I had to take a photo holding a stack of 6.... lol.

We are using one of the $99 EATX rack cases that a forum member builds professional cages to hold the video cards, ASRock H97 Anniversary, celeron something or other and 6Gb ram, 120Gb SSD, the new PCIE style [right angle-1x male connector and PCIE +6 plug] risers, Coolmax 1600w power supply (it was donated to the project by a friend of his so its being used).... And 3 EVGA GTX1080 (2x FTW and 1x SC), a PNY reference card, and the last is a brand I don't recall the name of, which is a reference style, but their own design of the typical nvidia one.



We did it all simple;  a rivet gun and some L shaped aluminum strips as well as a U shaped piece, and a hacksaw were used to support the risers.  Everything was hooked up correctly, no shorts to ground, etc... all secure with rivets.

I'd have completed photos, but 4 of the 6 risers burned out as soon as we powered it on.   Very odd.   if you lift the foam under-padding to inspect the bottom of the riser, the whole +12V rail leading from the PCIE pins to the PCIE connector is fried like a fusible link...  and separated from the substrate.  At least 80% of the entire physical trace on the underside.  Anyone had this happen to them?

the 2 other risers work perfectly fine.   A strange issue indeed.

All in all, crude, but frugal and effective.  He bought a second case just because they were so cheap.... so we will be doing more miners in the near future.  If it all works out, we may be able to snowball into buying more and more cards and grow a business together.  Who knows.   I hope the alt market stays this profitable.   I am seeing 2x+ profitability recently with the algo I have been mining the past few months.

So for now;  we only have 3 cards online (one is occupying the 16x slot); and the first 1070 in his home PC chipping away.  I am returning later today with 2 of my personal risers so we can at least get the other two idle cards installed ASAP.

anyone else here think that the eth dive today is to jump in on buying BTC before it rises back to 1200+?

When I saw the shape of the falling edge of this price pattern:
I had a feeling the price was gonna dive.  It just didn't fit the rising patterns.  Reminds me of what I had seen in the past when ETH dropped down low a few times.

I myself;  I have been sticking to my original altcoin mining plan....   Haven't switched to ZEC/ETH during this stint or anything.

I always mine autoexchange pools, so profitability rises and falls with the market on all the algos;  not my future profit... I don't hold anything but BTC.  If ETH tanks low enough, I'm going to invest $100-1000, and let it sit there for a minimum of 2-3 years.

The algo I have been mining for the past few months;  nearly doubled in profitability for the last ~3-5 days, and now it seems to be ramping down a touch.....  But given the fall in BTC price;  the price per the algo i've been mining will probably stabilize and start to ramp up in payout amount again in a few days.

As soon as the batch of 1070's arrive in the mail, I'll be assembling a new rack-mount rig and prepping it to be installed in the server room of a certain tech giant....  We have a full rack and ip range at our disposal through some miracle I will not mention.


 

Ive always had the inside conception that BTC should be used for large and storage type purchasing, and an alt or some alts should be used for micro payments....

Look at the price history on coinbase though, that tells the real picture.   Flat bottom at 1000.  How many buyers @1000 do you think there were at the time of the fall.

Given the way the order plots usually look;  I'm willing to bet quite a large sum of BTC.    It never hit below.  When it didn't drop lower;  shortly after is when the price drop "buy scramble" happened.

Funny thing though;  BTC is already "ETF" traded on exchanges like coinbase....  The price drop is just market play and manipulation.  In my eyes.  The long term delta is still waaaaay positive.

People are sheep if they follow the whales. 

That's what the whales want;
the sheep to drown.

If you ask me;  the core team shot themselves in the feet many times over.  I just leave it at that.

I had to restart my miner apps.

A 750ti machine that has 24/7 ontime;  has been a ghost miner for me for several months.

when I turn the farm off;  I still have some Mh on skein.  pretty funny

check ebay;  there's a few different blade configs.  some came out of larger machines with multiple blades.


Try without the /# commands on the stratum port.


I always used:   stratum+tc....com:4444#xnsub on my antminers;  never a / before the #.   I did not know about the second # tag; just leave them both out for now and no slash after URL/port.


FYI, if you have good cooling and a good power supply;  I ran my orbs and blades at 1000Mhz stable.  I just used MinerA on a Pi to control them and it would auto-reboot if a miner went dead.   The LightningAsic rom for the Wiibox also had this feature, and an auto-overclock feature.

You did not read the lines just below that table:

 * a general estimate from current exchange rates
 ** bitstamp 1 265.03 USD/BTC
 *** Payouts 60+ days old are purged.
 **** Total Unpaid is a combination of your confirmed Balance and your fluctuating total pending. This value will rarely be constant.

"Total pending" is a value calculated on exchange price and a few other variables.  Look over the publically available pool code to find out exactly what and how.  It's extremely complex for the layman.

Exchange prices on coins can change drastically.  The only number that can't be decreased unless you receive a payout is your "Balance".

If the pool is trying to make a payout, it can change the sale price to sell off inventory to pay the miners.  It would be pretty crappy is the pool held out for a specific sale price that never came.

Just because median exchange price is X, doesn't mean your mined coins will sell for X.

provide more info;  such as blade model/type, configuration and version of what miner you are running.

This will help you get a better answer from me than this one.

Its a funny thing.  Some people hear it, some people don't.

I have yet to have a failure with any EVGA card I've worked with.

The build quality is stout, the coolers are VERY efficient and well made (not flimsy like ASUS), and I haven't seen any dead fans on em either (yet).  When I compare the quality of several generations of my GTX cards to other makes; they are just better in many respects.  EVGA cards also usually keep a higher resale value.

After the mess I had to deal with when using r9-280x cards from XFX;  I will NEVER buy ANY of their products ever again.   These cards never mined either.  They were in rigs that did A/V work for a lighting/audio company I work for (concerts, business events, clubs, etc etc etc).  We did a LOT of professional video mapping.

I remember what MSI and Gigabyte were before they are what they are today, so I am still weary about buying their products.  They had an excessively high failure rates on their motherboards for many years.  I know;  because I worked for the company that processed/recycled all of their "crush" items (returns, warranties, mis-shipments, overstock, discontinued items, etc).  Although it seems they have gotten their act together.  So I always consider them based on others' reviews.

After buying my ASUS GTX980;  Ill never buy their cards;  the cooler is a joke.  It works... but, its not "securely" attached to most models.  Ive had to re-paste mine twice because I bumped the cooler enough and it rose it off the die;  and temps were 5-10*c hotter after.   Just 4 spring loaded screws holding ALL that weight.  Insane.

And the new manufacturers.... Well;  I have seen the engineering that goes into a LOT of the cheaply made electronics nowadays (things like the reviews from bigclivedotcom for a start)...   and I am weary about complex electronic products for that reason considering most can't even make their own proper LED driver or power supply for their products.

Enough of the long winded blabbering;  But hopefully it helps explain why I am partial to EVGA.  Ive always been thinking Quality is more important than Price in my head.

Last block before a few hours ago was 2d ago....

Looks like not enough mined.

Check the pool status page for the algo and coin you are inquiring about;  you can see for yourself and guestimate how long it may or may not be; based on the block TTF, reward, and last time block(s) found.

You must be deaf to coil whine then.......

The power phase thing is more for stability and reliability.

I pay extra for EVGA cards because they do good hardware.

I presently run a few 1070 few dt 8gb cards and they really are stable on many Lagos.