I'm running at 462, underclocked at 0xd0 getting 595MH (due to HW errors) at 870W, compared to stock freq/voltage I get 830W
I have 4 running at 462M now with HW errors <0.08%.
In conclusion, a few things were done to try and keep HW errors < 0.08%
Individual boards with high HW @ 462 gets an overvolt at 0x78 or 70.
Boards with average HW gets a 1-2 step undervolt 0x88, 0x90
Good boards gets more undervolting. I have one that throws 1HW in 10 mins at 0xb0
My goal right now is to increase revenue and improve profitability - Hash at 595 gives roughly 15-20% increased revenue with an efficiency gain to 0.68MH/W over 0.60MH/W hence improving profitability.
I would think your hash rate of the unit is not the same as the pool due to the hardware errors, only accepted good shares, stale, orphaned, duplicate would be used to calculate your hash rate over a period of time.
I have my unit running at 555Mhs @ freq 425 stock volatage and want to see how much I can turn it down and get the least power draw. Anyone dial back yet on a overclocked unit?
I'm running at 462, underclocked at 0xd0 getting 595MH (due to HW errors) at 870W, compared to stock freq/voltage I get 830W
I have 4 running at 462M now with HW errors <0.08%.
In conclusion, a few things were done to try and keep HW errors < 0.08%
Individual boards with high HW @ 462 gets an overvolt at 0x78 or 70.
Boards with average HW gets a 1-2 step undervolt 0x88, 0x90
Good boards gets more undervolting. I have one that throws 1HW in 10 mins at 0xb0
Why doesn't the hashrate on my pool stats match with my miner?
My miner is reporting 604MH with 462 frequency. But the pool is reporting 570MH?
If overclocking to 462M without undervolting is already generating HW errors, does that mean I will have to OVERCLOCK my miner?
Very hard to answer. Are you tossing thousands of errors hundreds of errors or dozens of errors.
In day 100 errors is no big deal
Mine indeed is tossing 1100 HW in 2 hours.
I'm now seeing a clearer picture of it. The % error is indicated at the HW row under the Nounce# column right?
The value for my first rig is 0.4% despite getting 7k HW errors in 14 hours.
The value for my second rig is 0.01% with just 200 HW errors.
What about the percentage of DiffA# column?
It's also very dependent on how the pool parcels out work, how much work is thrown away, difficulty settings etc
I'm getting 1% error rate, difficulty at 65k, pool reported rate average for the past 24h between 550 to 600; miner reports effective rate of 595 (due to errors ~1%) at 462M frequency
Did you undervolt or overvolt it? What does 1% error rate mean? My HW errors are numbers like 5k in 10 hours, still reporting 599MH average on stats panel. Pool panel (litecoinpool) reports 540-660 so huge fluctuation here. Feeling like mine needs an overvolt.
1% errors means that 1% of overall hash is in error - basically, miner reports 604 as what the chips are hashing, 595 as average, and hardware errors under nonce reports 1% errors. Fluctuation is normal, over time miner is "600 MH/sec" but difficulty and shares are based on luck - in the long run I should be getting around 600 MH - 1% = 594 at pool. This is further reduced by work from pool not being "instant" and the antminer software itself has discarded work.
% error is indicated under Nonce# column HW row right?
For the first machine, I get 7k hw errors in 15 hours, 0.4056% Second machine 4k hw errors, 0.2532% The third machine I got 158 hw errors, with the number just being 0.0101%
These percentages do seem like hw error % due to their relevance proportionally. As long as I keep these numbers reasonable, I'm undervolting correctly?
Why doesn't the hashrate on my pool stats match with my miner?
My miner is reporting 604MH with 462 frequency. But the pool is reporting 570MH?
If overclocking to 462M without undervolting is already generating HW errors, does that mean I will have to OVERCLOCK my miner?
Very hard to answer. Are you tossing thousands of errors hundreds of errors or dozens of errors.
In day 100 errors is no big deal
Mine indeed is tossing 1100 HW in 2 hours.
It's also very dependent on how the pool parcels out work, how much work is thrown away, difficulty settings etc
I'm getting 1% error rate, difficulty at 65k, pool reported rate average for the past 24h between 550 to 600; miner reports effective rate of 595 (due to errors ~1%) at 462M frequency
Did you undervolt or overvolt it? What does 1% error rate mean? My HW errors are numbers like 5k in 10 hours, still reporting 599MH average on stats panel. Pool panel (litecoinpool) reports 540-660 so huge fluctuation here. Feeling like mine needs an overvolt.
What what? For some reasonyour warehouse couldn't host additional 20 miners? It is YOUR warehouse and you do not know the reason?
Temperature issues.. It has to do with the warehouse itself unless I change locations..
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Topic
BoardComputer hardware
[WTS] ASRock H81 BTC R2.0 New $70 each
by
botarnold
on 18/10/2017, 21:10:46 UTC
Hi
I have around 20 ASRock H81 BTC R2.0, for some reason my warehouse could not host 20 additional miners so I have decided to sell them at a loss for $59 each.
Shipping out from Hong Kong, escrow accepted. 100% brand new unopened.
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Topic
BoardMining (Altcoins)
Re: ethOS - Ethereum Mining Platform
by
botarnold
on 22/09/2017, 12:25:14 UTC
The vlt function doesn't seem to work on RX580 cards. As the power draw from the wall did not change whether I tune 1100 to 900 and even 750. It just doesn't seem to applying my values.
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Topic
BoardComputer hardware
Re: WTS 20x NEW H81 Pro BTC R2.0 Motherboard $100/ea
by
botarnold
on 06/08/2017, 07:52:21 UTC
bump
Post
Topic
BoardComputer hardware
WTS 20x NEW H81 Pro BTC R2.0 Motherboard $100/ea
by
botarnold
on 04/08/2017, 11:44:44 UTC
Shipping at the expense of customer Escrow accepted. Shipping out from Hong Kong. Brand new unopened.
Today i was around the computer parts mall and all 580/570 are sold out. Hard to get more, but luckily i found a lonely sapphire rx580 sitting in the warehouse in stock so I brought him home. And it has SAMSUNG MEMORY.
I'm working to set up a mining farm with 7 rigs to start with. Planning on a site which has window access. I'm wondering if the farm can rely on airflow from installing fans on the window 24/7 365 days a year all season, as the outside temperature can get up to 33C at times, but very rare. I want to know if this is possible, of course I will have an AC as back up. But is this avhievable to rely on pure airflow.
I run 9 rigs in Rosewill in a 42U rack and 2 open air rigs in garage where temp is 100F+ or 33C+ with no issues. I have 2 exhaust fans with 3200 CFM total and 4 Windeevents to get rid of hot air.
I dont have space for big exhaust fans, any recommendations for a fan that fits within a window? I will be replacing the glass pane with exhaust fans.
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Topic
BoardMining (Altcoins)
Re: Mining farm, 30C outside temperature without AC relying on high airflow only?
