Running .4 and using Zhash for the new BTG Fork and am getting a ton of rejected shares.  I've tried with and without afterburner running so the OC isn't causing this

Have you got BTMiner_NebuTech to work with beepool?  Keeps on giving me login failures.  Bminer 9.0 works just fine but unfortunately it hashes about 10% slower than BTMiner

Aren't you forgetting about hte intake from the 2 rectangular flaps in the center piece?

That's a good question, I would guess that it's around 40 degrees celcius in there but you motivated me to move a thermostat into the room to monitor it.    One of thing things I was asking myself today is if the TDP of gpu's includes the power needed to spin the fans.  IE: If I have 30 gpu's at 100% load and their TDP is 115 watts, then we can hypothetically assume that their wattage is going to be 3450.  It's not going to be obviously but let's just make the math easy.  Now does that TDP include the fans at 100% or does that TDP not take into account the fans at all.. Will it be 3450 with all of the fans at zero or will be be 3450 with all of the fans at 100% or will it be somewhere in the middle?

I'm not 100% sure if the problem gets worse when the ambient temp goes up but I been having a lot of issues this week with one of my rigs going down because it's power strip keeps on tripping.  So keen to hear advice from people that have gone through this as well as recommendations for power strips that can handle warmer environments a little better.  Currently I am using these guys: https://www.amazon.ca/gp/product/B075RZ89XC/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1 which I bought because it specifically says that it can handle 1875 watts of continuously load.  We are running 1 EVGA 850 watt ATX PSU and 1 750 Watt HP server PSU off this, both PSU's are running at around 1/2 capacity.

The first obvious response to this is 'Duh, you're running too much power through the damned thing'.  I've done my best to spread the power loads around and when I hook a wattmeter up to this strip, the combined pull of everything on it was 1380 watts.  So upon seeing that I redistributing things a bit and now it sits around 1180 watts which, as far as I know, should be more than enough breathing room for this power strip but after 30-60 minutes it will trip. 

Is it possible that the systems power usage spikes briefly?  How big of a role does the ambient temperature play in this as the room currently sits between 35-40 degrees celcius(all GPU's operate around 67 degrees as we have some big fans on this thing)


It's driving me bonkers so any help would be greatly appreciated

I'm not 100% sure if the problem gets worse when the ambient temp goes up but I been having a lot of issues this week with one of my rigs going down because it's power strip keeps on tripping.  So keen to hear advice from people that have gone through this as well as recommendations for power strips that can handle warmer environments a little better.  Currently I am using these guys: https://www.amazon.ca/gp/product/B075RZ89XC/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1 which I bought because it specifically says that it can handle 1875 watts of continuously load.  We are running 1 EVGA 850 watt ATX PSU and 1 750 Watt HP server PSU off this, both PSU's are running at around 1/2 capacity.

The first obvious response to this is 'Duh, you're running too much power through the damned thing'.  I've done my best to spread the power loads around and when I hook a wattmeter up to this strip, the combined pull of everything on it was 1380 watts.  So upon seeing that I redistributing things a bit and now it sits around 1180 watts which, as far as I know, should be more than enough breathing room for this power strip but after 30-60 minutes it will trip. 

Is it possible that the systems power usage spikes briefly?  How big of a role does the ambient temperature play in this as the room currently sits between 35-40 degrees celcius(all GPU's operate around 67 degrees as we have some big fans on this thing)


It's driving me bonkers so any help would be greatly appreciated

Well it will, it's just that the 14th gpu needs to be a mining specific card liek the p102 or p106 .. I was wondering if it was a mining card requirement or if you could just use a any nvidia cards to supplement 13 amd gpus' on that board

Would it be possible to have 13 AMD gpus and 6 Standard Nvidia gpus or do you absolutely need the mining specific nvidia gpus?  I was wondering if as long as the other 6 were not AMD if it would work

Human beings sacrificing short term personal gains for the long term good of the whole(or even themselves) is never going to happen.. We've been fucking ourselves over since the dawn of time because of our inability to do this so it's not going to change anytime soon

Has anyone had this happen?  I'm using an HP 750 Watt gold PSU from parallel miner and the thing started resetting after a few minutes for no apparent reason.    I'm running an Asus B250 Mining Pro and have stripped away most of the gpu's to ensure that I wasn't overloading the PSU(confirmed 350 watt load via watt meter) but every time about 3-4 minutes after I boot the machine up, about 30-45 seconds after the rig starts mining, the PSU's fan will go to 100%, it will shut itself off for 5-10 seconds and then power back on again.  Of course in that time all of those gpu's are powered down causing windows to BSOD and the whole rig shuts down.

I've swapped the server psu out with a standard ATX 750 watt gold PSU from EVGA and it runs 24/7 without any issue in the exact same configuration so I'm at a bit of a loss as to what is causing this.  I'd really prefer to run server psu's because they are designed to go at 100% 24/7 so finding a solution to this would be great.  I've also swapped my one server psu out with another one that I got in the same order but hadn't used here yet and the same problem happened.

thanks

I'll join the fray here as I'm seeing some odd behavior out of my Nitro+ this week.    I got the card last week, flashed the rom and was pleasantly surprised to see the hash rate get up to around 31 MH/s so I let it alone and went on my way.  Fast forward a week and this card is unable to get over 18.75 MH/s, at some point along the way it just dropped down there and stays there.   It's set to compute mode but the crazy thing is that when I set it to graphics mode and reboot the hash doesn't drop at all, it just stays at 18.5 -18.77 MH/s.  I switch it back to compute, reboot and it's at the same rate.  I've flashed back to the original rom and sure enough the hash rate stays exactly the same, 18.5 - 18.75.  Flash back to the rom that got me up to 31 MH/s and the results are the same, 18.5 - 18.75 MH/s.

Running on a B250 Mining Expert with 6 other 570's, 3 gpu's on one PSU, 4 on another with power to spare.  8GB of dd4 ram, a 64GB swap file sitting on a nice fast SSD, all powered by an intel 4400 cpu.  Would love some advice if anyone has any

I agree that this is a concern, however what I'm going to be doing is taking AM's daily profit estimates every day and comparing that to the actual daily profits, so as the difficulty changes AM updates the estimates automatically.    Good thinking though, I hadn't considered difficulty but thankfully AM updates those estimates based on info from coinwarz and whattomine automatically

Do you sell often or hold long term?  I'm finding better luck with ZCL and ZEC most of the time, with occasional hours of BTG.

Just switched from EWBF to DSTM this week and saw a nice 5-7% uptick in Hashrate on my 1080ti's

Week 1

Test Variables:

• Software: Awesome Miner & DSTM
• Algo: Equihash
• Pool: Mining Pool Hub
• Pool Fees: 2.57%  (0.9% Pool Fee + 0.0001 Withdraw Fee [1.67%] )
• Mining Method: Single Currency Mining, No profit switching
• Currencies: ETH on AMD cards & ZEC on Nvidia cards
• Cash out Method: Autoconvert all to ZEC, Transfer to Exchange every 0.06 ZEC
  

Results:

• AM Profit Estimates: $45-$50 / day on average
• Exchange Deposits: $35.33 / day on average
• Mining Pool Fees: $0.91
  
• Actual vs Estimate Difference: 19.5%
  

Week 2
1 new 1080ti + 2 RX 570 4GB GPU's added to the mine
ZCL also shot through the roof which is going to drive the AM daily estimates up

Test Variables:

• Software: Awesome Miner & DSTM
• Algo: Equihash + Ethash
• Pool: Mining Pool Hub
• Pool Fees: 2.57%  (0.9% Pool Fee + 0.0001 Withdraw Fee [1.67%] + 0.2% Auto-Exchange Fee)
• Mining Method: Mining Pool Hub Profit Switching - Single Algo
• Profit Switching Settings: Whatever MPH chooses
  
• Currencies: ETH/ETC/EXP/MUS on AMD cards & ZCL/ZEC/BTG/ZEN on Nvidia
• Cash out Method: Autoconvert all to ZEC, Transfer to Exchange every 0.06 ZEC
  

I know this is a topic that has come up before in the past and I have researched it heavily.  I understand how the auto-exchange works as well as the delay required to trade into your desired currency.

This month I will be performing some tests to confirm the actual payout rates over 2 week periods and I wanted to make a post to document the results but also ask others if they have similar data they can share.   

• Week 1-2 will be done with AM mining a single currency (ZEC) and not auto-converting anything.
• Weeks 3-4 will be done with AM doing profit switching within Equihash only on the Nvidia cards and sticking with ETH on the AMD cards, auto converting to ZEC.
• Weeks 5-6 will be done with AM doing profit switching with Equihash, Skein, Lyra2RE, Lyra2REv2, Lyra2z and Neoscript, auto converting to ZEC

 

I will auto-transfer ZEC to a wallet at set amounts and track the date, amount, exchange rate and value of each transfer.  In between tests I'll likely set the miners to mine smaller alt coins so that MPH can finish exchanging all of the outstanding coins, essentially flushing the system to ensure that the next test does get some residual revenue from the previous one.

I have to assume that I am not the first person to think of this and perform such a test so I'd be keen to see any spreadsheets that anyone has prepared for this already as I really want to see how different the actual returns are vs what AM estimates in it's daily totals.  Once I have this information I'll likely install nicehash and betterhash and see how the payouts compare there to what they estimate and to what AM's payouts actually are.

Should have also mentioned I'm in Canada, if that makes a difference

Ah, gotcha.  I'm on MPH, wonder why it isn't supported on AHashpool.  For me Equihash usually owns 4 out of the top 5 slots for most profitable coins(ZEN/ZCL/BTG/ZCL) With FTC popping up every now and then.  I've been sticking primarily with more well known coins but maybe I should diversity with another pool with some smaller coins as well.

Thanks for the reply,my apologies for not specifying that I'm looking for closed loop units.  Can't be bothered with all the maintenance of an open loop system.  Appreciate the reply though!

Currently need 2 of these gpus to complete a couple rigs that run in cases because they double as work machines during the day.  I've been able to snag the odd card when they come in stock but figured I'd try my luck here.

Thanks