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1  Alternate cryptocurrencies / Mining (Altcoins) / Re: Is GPU mining really dying? on: November 09, 2021, 08:22:19 PM
I dont think AMD and Nvidia will allow to pow die Smiley do you think they dont count money? Miners are most profitable customers in GPU industry and all GPU history. They did fortune on miners Smiley))) i dont think they will let go valuble customers like miners. Gamers yes but they not profitable as miners so dont worry guys we are valubale customers Smiley

1. Nvidia do not want miners buying their cards!  Why do you think they started making cards only LHR?
2. There is nothing Nvidia or AMD can do to stop POW even if they wanted to (but actually they don't.  See point 1)
2  Alternate cryptocurrencies / Mining (Altcoins) / Re: Silent Running on: August 22, 2021, 12:38:16 PM
I don't understand why you did vertical installation of video cards. Thermal pads on these video cards do not emit liquid.

I designed the rig to:

1. Maximum air space between cards.
2. Have a taller narrower form factor.  (Makes it easier to pick up and move not having to bend down so much.)
3. So I can comfortably fit 8 cards in an area where normally you would only have 6.

...and finally because personally, I think it looks more bad-ass!
3  Alternate cryptocurrencies / Mining (Altcoins) / Silent Running on: August 22, 2021, 02:15:18 AM
...was a classic 70's scifi flick (which most of you probably haven't seen) but that's not what this thread is about  Grin

A few months ago, I decided to replace all the fans in my rigs with noctuas with the goal of reducing the noise level.  72 fans later, I am impressed with the result. 



My cards are Gigabyte 1070s and 1070tis, 3 rigs, 8 per rig.

They now run so quiet to be virtually inaudible unless it's a very quiet room.  In fact the main remaining noise was from the Silverstone 1500ti power supply so I went a step further and replaced that fan with a noctua NF14 industrial, connected to a motherboard header for control and monitoring.  My rigs are now so quiet that I can use them in a bedroom (which is ideal during winter.)  Another advantage is noctuas are rated for 150,000 hours which is like 20 years and laugh at dusty hot environments.  The stock fans began to seize up after 6 months and over the years I have replaced all the original sleeve bearings with ball bearings which stopped them seizing up but didn't help with the noise.

Cooling seems to be slightly improved too as temperatures with the fans running at maximum speed are slightly less than the originals running at their maximum speed.  The only downsides are losing the pretty lights (meh) and the fan calibration monitoring is completely wrong now as the bios thinks 4200rpm is 100% (original fan), so when the noctuas are running at maximum (2200 rpm) monitoring indicates 54%  This makes absolutely no difference to the cooling; it's just I need to do some mental gymnastics to determine the real percent.

And finally, the noctuas use less power.  Around 5 to 7 watts per card which adds up when you multiply it by 24 cards running 24/7.  Around 3kw less per day.  Which adds up over time.

So in summary:

PROS

Very quiet!
Way less prone to failure.
Slightly better cooling.
Slightly less power used.

CONS

Expensive x 24
Displayed fan percent incorrect.
Losing the pretty lights.


The result while costly, means that even when mining barely covers the cost of the electricity, I can happily run my rigs during during winter, using them as heaters.  Each rig draws around 1100 watts which provides the same heat as an 1100 watt heater.  BUT they are actually quieter than an equivalently powered heater!




4  Alternate cryptocurrencies / Mining (Altcoins) / Re: Crater on surface of GPU heat spreader on: August 04, 2021, 07:08:38 AM
I carefull sanded the crater out of the heatsink and VERY carefully sanded the GPU heatspreader using very fine sandpaper.  Completely removed the heatsink crater but left a much smaller pit in the heatspreader as I wasn't game to go too deep.  Then I had to deal with cleaning the microscopically fine metal powder that was undoubtedly left on the card.  Put it all back together and... well definitely an improvement.  Instead of running 10 degrees hotter it's now only about 4 degress hotter.  

Definitely nothing wrong with the fans and I can't see anything amiss with any of the components.  The other 7 cards in the rig are fine so it's not the power supply.  The reported watts is normal and the total power drawn by the rig from the socket is normal and the card had been running 24/7 for a month or two before I got around to cracking it open to see why it was 10 degrees hotter, so I expect it will continue to run fine especially as it's now only 4 degrees hotter.  Appears to be solely a heating issue caused by a defect in the heatsink or heatspreader, maybe an airpocket, who knows.  Up until a few months ago, it had been running pretty much non-stop for 4 years at a normal temperature.  Interestingly, it's winter here so temperature-wise, it actually occurred when it less stressed than 6 months ago.
5  Alternate cryptocurrencies / Mining (Altcoins) / Re: Crater on surface of GPU heat spreader on: August 01, 2021, 06:25:08 AM
Was it always running hot or all of a sudden?

All of a sudden.  Just suddenly started running 10 degrees hotter with the fan going 100%.  Fans are fine, I replaced the original sleeve bearings with sealed ball bearings years ago and they been fine ever since.  For sure, the crater wasn't there when I changed the fans so it has happened while it's been running.  It's like a teeny weeny explosion, damaging the GPU and heatsink.  But it still runs fine.  I will get some fine emery paper and see if I can smooth it down a bit.
6  Alternate cryptocurrencies / Mining (Altcoins) / Crater on surface of GPU heat spreader on: July 31, 2021, 11:28:47 PM
One of my cards was running hot so I took it apart to see what was going on and discovered a crater maybe 2mm wide and maybe 50-100 microns deep in both the heatsink and the GPU.  It's like some tiny people let off a tiny stick of dynamite and made this not-so-tiny crater.

Card works totally fine except for getting hot.  How to fix?  Sandpaper?
7  Alternate cryptocurrencies / Mining (Altcoins) / Re: Are people really that ignorant? on: May 30, 2021, 07:15:22 PM
OP so many people feel less concerned about the pending ETH PoW algorithm because ethereum team can't be trusted until they did what they promised, do you know how many years it's been since when ETH team have been promising proof of stake algorithm ??

I started mining back in 2017 and Eth POS was supposedly coming within 6 months, so yeah I understand.  It's like the boy who cried "wolf"  After a while nobody listens anymore.  But my point is that when and if it happens, it will be the end of gpu mining for 99% of people.  Of this there can be no doubt.  The gravy train will reach it's final terminus the day Eth goes POS.  So don't expect the salad days to go on forever.
8  Alternate cryptocurrencies / Mining (Altcoins) / Are people really that ignorant? on: May 30, 2021, 03:07:35 AM
I find it perplexing that so many (especially newbies) don't seem to be concerned about the pending Eth POS.  I believe the following to be facts but if anyone can rationally argue any of these points, I would be very interested to hear it.  It's quite possible I'm the stupid one but so far I haven't heard any reasonable rationale to counter the following logical chain.

1. Eth goes POS
2. Immediately, all the gpus currently mining Eth, switch to mining much smaller coins.
3. The enormous amount of hash power causes an enormous increase in difficulty for these smaller coins, resulting in:
4. Smaller coins mining profitability crashing through the floor, way below the electric cost for most miners.

At the moment, other coins are profitable.  Not as profitable as Eth but nonetheless still can generate more revenue than the electricity costs.  But consider a 100x increase in hash power that will result when erstwhile Eth miners switch over.  100 x hash power = 1/100 revenue per hash  (This is a very rough approximation).  Therefore if a card is currently earning $1 a day in revenue, it will drop to 1 cent a day.  Obviously no profit at all here.

Of course very quickly people will start turning off their rigs when they see they can no longer make money.  After a short period of time (weeks maybe), difficulty will drop and an equilibrium will be reached whereby the few miners with the lowest electric cost and the most efficient cards will be left mining with some degree of profitability.  But the majority of current miners will be out of the game.

This is not my opinion, it is factual.  Unless someone can fault my logic. (Please, please do!)

The Eth POS is not like a bear market.  It's a game changer for gpu mining.  There is no other POW coin that is anywhere near Eth's dominance.  The best you can hope for is that EIP1559 continues to be delayed because when it happens, it will be the end of gpu mining for most people.

Probably the worst time ever to be buying overpriced cards and starting mining.






9  Alternate cryptocurrencies / Mining (Altcoins) / Re: Eth moving away from POW- Will GPU mining be lucrative on: May 28, 2021, 03:10:17 AM
Everybody remember what happened in 2018-2019 when it was not profitable it was paying 0.4-0.5$ for 30mhs and now if markets crashes it will be close to those numbers again. Myself usually mined monero because it was more profitable than eth. and also there was coocaroo algo was very profitable for nvidias.Lyra was also good for some time. not all people mined eth all the time. yes i know if eth stops those numbers will be more less maybe 0.2-0.3$ for 30mhs.so be prepaired for that.

Yeah... maybe be prepared for $0.02 for 30MH/s.  Nothing like Eth going POS has happened before.  It is unprecedented and it can't be compared to previous bear markets.  Other cryptos are minnows compared to ETh and the amount of hash power currently mining Eth, when turned to mine other cryptos will put a rocket under their difficulty resulting in a lead weight on profitability.

Crypto bull and bear markets come and go, rise and fall.  But we are talking about the biggest gpu mineable crypto ceasing to be gpu mineable.  Nothing like this has happened before.  There's a massive amount of hash power currently burning watts, mining Eth.  Imagine what will happen when that tidal wave of hash power turns to other much smaller cryptos.  Difficulties WILL skyrocket and profitability WILL plummet.  That is not opinion, it's factual.  And it aint gonna be a small dip!
10  Alternate cryptocurrencies / Mining (Altcoins) / Re: Eth moving away from POW- Will GPU mining be lucrative on: May 27, 2021, 10:38:11 AM
Today Net Hashrate

ETH : 600 TH/s ~ 20.000.000 RX 570 8G
RVN : 5 TH/s ~ 384.615 RX 570 8G
ERG : 15 TH/s ~230.769 RX 570 8G

If ETH go to PoS, you will see all PoW coins become unprofitable. And 60-70% miners will left

And why would they all of a sudden become unprofitable? Care to explain yourself?

It's very simple actually.  The massive influx of hash power applied to lesser coins that will result from Eth going POS, will result in a massive increase in difficulty.  Higher difficulty = lower earnings.  These are simply inarguable facts.  Or to put it very simplistically, the same size pie will be cut into a thousand times more pieces so each hash will generate 1/1000 the earnings than before.

I find the blind optimism that the Eth POS will be a mere blip in mining profitability to be somewhat bewildering.  Only the strong will survive the aftermath.  "Strong" in this case meaning those with the latest gpus and/or the cheapest electricity.
11  Alternate cryptocurrencies / Mining (Altcoins) / Re: Eth moving away from POW- Will GPU mining be lucrative on: May 25, 2021, 03:52:46 AM
The Eth POS will happen sooner or later.  It's been many years "pending" but one day it will happen.  And when it does, the shakeup wrt GPU mining will be huge.  Eth is the 2nd biggest crypto and the 3rd is a long way behind.  It's hard to imagine a scenario whereby all the hash power currently mining Eth turns to other much smaller cryptos, that doesn't result in a massive reduction in mining profits.

Crypto prices rise and fall, bull and bear markets come and go.  But the Eth POS will be an unprecedented event that will smash crypto mining profitability.  I just can't see any plausible alternative.  I would dearly love to be wrong and if anyone can logically and rationally detail a reasonable scenario whereby crypto mining continues to be at least half as profitable as it is now after the Eth POS, I would be very interested to read it.
12  Alternate cryptocurrencies / Mining (Altcoins) / Re: Eth moving away from POW- Will GPU mining be lucrative on: May 24, 2021, 07:03:45 AM
I hope I'm wrong but I believe if and when eth goes POS, gpu mining will stop being profitable for most people.  Right now most gpus are hashing eth and when that huge hash power is turned to other coins, their difficulty will shoot up and profitability will plummet.  I can't see any other alternative to this happening.  I doubt we will ever see a bull run like this again for gpus.  But it's been a wild ride  Grin
13  Alternate cryptocurrencies / Mining (Altcoins) / Re: itx or mini itx cpu/motherboard combo with "above 4g decoding"? on: May 18, 2021, 03:03:55 PM
Not Itx but small and has above 4g decode....handles 8 gpus....and totsl 15w TDP for motherboard.

https://shop.rebtech.ai/product/mother_board/



Cheers for that Smiley

It's exactly what I would love to get!  If it wasn't out of stock.
14  Alternate cryptocurrencies / Mining (Altcoins) / Re: itx or mini itx cpu/motherboard combo with "above 4g decoding"? on: May 18, 2021, 10:51:59 AM
There are plenty of low power cpu/motherboard combos that draw less than 30 watts under full load, some under 20 watts, including ram and drive.

see https://www.techspot.com/review/1188-asrock-deskmini-110/page7.html

The problem is finding one that can support above 4g decoding.
15  Alternate cryptocurrencies / Mining (Altcoins) / itx or mini itx cpu/motherboard combo with "above 4g decoding"? on: May 17, 2021, 12:53:28 AM
In an effort to save watts and have fun, I would like to try to make an 8 gpu rig using one of those cpu/motherboard combos that typically have a tdp less than 20 watts.  To run 8 cards, I just need 2 slots feeding 4 way pcie splitter cards.  But I also need the "Above 4g decoding" bios option.  Is anyone aware of any combos that include such?
16  Alternate cryptocurrencies / Mining (Altcoins) / Re: Curious "issue" regarding GTX 1070ti on: May 14, 2021, 09:36:03 AM
Whatever is responsible for reading C in your GPU is faulty, 10C is fake reading do don't be fooled by that, always make sure you crank up your fan speed to something like 65% just to be on safer side, I once have a weird GPU with same issue before

Very doubtful.  The card has been running reliably for 4 years like this including 4 Australian summers where ambient exceeds 40 degrees C.  Also both the GPU and hotspot reported temperatures are 10 degrees lower than usual.  And if there was a measuring error then the backplate would be noticeably hotter but if anything it's cooler than the other cards.
17  Alternate cryptocurrencies / Mining (Altcoins) / Curious "issue" regarding GTX 1070ti on: May 14, 2021, 12:40:12 AM
I've been running 24 Gigabyte GTX 1070/1070ti's for the last 4 years and they're all still running fine.  But one card has always had rather odd characteristics.  It runs around 10 degrees (C) less than the others.  (both gpu and hotspot).  All settings the same but it just runs a lot cooler with the same hashrate.  Sometimes the "fan stop" light comes on as the fans slow down and stop cos it's just not getting hot enough.  And yet it hashes just as good as the rest of them.

I can only assume it's due to some random serendipitous manufacturing "defect" that has made it unusually efficient at dissipating excess heat. Incidentally, makes no difference what position in the rig the card is.



You get some weird shit in electronics sometimes.  Years ago, I was working on a faulty circuit in a module that I finally traced to a copper track that had a micro crack causing the track to exhibit diode like properties.  i.e. It would only pass current in one direction.
18  Alternate cryptocurrencies / Mining (Altcoins) / Re: Anybody Source RTX-30xx cards on earth?? for reasonable price/quality on: April 28, 2021, 04:45:45 AM
I've been mining with 24 1070/1070ti's for nigh on 4 years now.  Never imagined they would still be profitable by now, but Im making more money than ever!  All because of this blessed chip shortage.  Sucks if you starting out now but for those of us who have been in it a while, the harder it is to source the new hardware the better it is for us.  If the new stuff becomes easy to get at reasonable prices, the older cards will rapidly decline in profitability.  And after a few months the new ones won't really be making any more money than the old ones did cos everyone will have them and the difficulty will shoot up.

Mind you, I wouldn't be too keen buying a new set of gpus right now.  The eth POS is just around the corner.  Though it's been just around the corner for 4 years at least, must be some big-ass corner!
19  Alternate cryptocurrencies / Mining (Altcoins) / Re: Does the BTC-T37 require a 24 pin ATX plugged in? on: April 25, 2021, 02:03:25 PM
Newegg says the ATX 24 is required:

https://www.newegg.com/p/1JW-00K8-00001

For thr BTC-T37 variant.


That link doesnt work for me.  Says "Sorry we cant find that item"
20  Alternate cryptocurrencies / Mining (Altcoins) / Re: Does the BTC-T37 require a 24 pin ATX plugged in? on: April 25, 2021, 11:38:36 AM
https://www.youtube.com/watch?v=7UGiz6C4PHM

Here is showing you this mobo without 24pin.

Yeah that's the D version.  The T version I'm talking about is pretty much identical with the exception being it has an ATX connector.  My question is if it is necessary to use the ATX? I assume not, but I don't like to assume where possible.
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