Im getting around 300gh at a much lower temp at current than normal.
300gh??? The C1 do 1000gh by default. I was trying an undervolt not underclock.. |
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Show us what u got??
Trying to find a good list of all if any mods for the S4 that are out there??
No one seems to have done this??
Ill put one in for those who didn't know...
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Undervolting or Overvolting is only available with the October 16th firmware
The best underclock or undervolt i have seen out there is
Freq 175mhz
Volt 0700
For 1085w from the wall & hashing at 1754gh...
Another is
Freq 162.5
Volt 0670
For 1500gh at 1000watts
Another is
Freq 175
Volt 0680
Unsure of watts hashing at unknown gh
Another is
Freq 187.5
Volt 0720
Gives 1800gh at unknown watts
Another is
Freq 187
Volt 0700
Gives unknown gh at unknown watts
I will try these myself with a kill o watt shortly
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Overclock
Freq 218.45
Volt 0745
For 2200gh @ unknown watts at the wall
Another
Freq 212.5
Volt 0740 or 0745 ur choice for stability
Gets 2150gh @ unknown watts at the wall.
WARNING WARNING WARNING
I would not suggest any overclocking using a stock bitmain PSU
IBM DPS-2000bb @ 2000watts will give u a clean punch of power to suit overclocking
Anyone else care to share??
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Last month didn't even make 1 btc, Made 0.9 btc with 3th (1 x S4 & 1 x C1) at 2300w....
In Australia electricity is super expensive in comparison to anywhere 0.20 a watt, When i hear u guys saying 0.10 a watt & less i cringe & i know i losing a never ending battle for BTC
Cost of my electricity at current in my circumstance is more expensive that coin generated at current diff & price of bitcoin.
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Trying Nicehash 4.9 extra nonce firmware
Freq 256.25 at 0665 volts...
Im getting around 300gh at a much lower temp at current than normal. 45 c instead of 55 c
Fan noise approx half..
Has anyone started hacking these or S4's yet, Like the S1 has pencil mods the increase the efficiency???
I'll have to put a kill o watt on it at a later date for at the wall..
UPDATE
After about 20 mins i had some chips xxxx out, Will retest tomorrow.
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The best u'll do here is the best personal miner gh per watt & that prize goes to the bitmain S5 till they workout how to underclock...
0.5w per gh
well if you say the lowest watt per gh makes a king or best miner then sidehack and novac's usb sticks are the maximum as they get .31 watts per gh. Sorry my bad i keep forgetting about that little beauty.... Are these available mainstream yet?? Cause i was originally talking about available mainstream home user products... And if they are currently available, Who do i need to talk to about acquiring one of these?? |
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Another alternative (I hate saying there name cause they can go to hell) BFL did when it did its first fgpa's
It gave customers a credit against there next miners if they sent them back. (Cause they could be reused for other projects)
Bitmain could issue a refund program after 6 months or as the next get of miner comes online, Send back your old miner & discount the next one.
This builds good customer relations by getting continued support of there own products, Virtually locks the customer into a buying & upgrading every time (U need money) Or create a new miner.
In turn helps the environment by keeping the parts out of landfill longer, Reduces the need to mine new minerals & gets them back nearly everyone of the chips to then downclock & resell at a higher hashrate in total at the same power usage essentially giving the miner another 3 to 6 months of life...
The scenario here i see uses something like a S2 box & setup with cards that can be swapped in & out.
Customer buys machine with however many cards u want to start with (Say 10) with i don't know cause i don't have a S2 (Say 20) chips as a standard machine running 1th at 1400w or better would be 1500w for headroom.
Upgrade for customer consists of user sending boards back (Include a prepaid return to sender padded box - Add it into the cost of the miner if the user wants this option so theres nothing to pay later for postage)
Then charge a half cost of the original miner to the user & send back 10 cards now with 60 chips on it (Off course this will be a first in first served basis or a good way to run out lower class excess chips or chips that are left in stock)
Anyone else care to chime in??
Hey if they can release an S4, Then an S5 & then go back and release an S4+ with an older chip nearly 12 months later, They can do anything..
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It's sorta what they were trying to do with the S4+, set at about 700mV and gaining 10-15% because no VRMs. It's a good idea, if it weren't expensive - the number of chips required to get appreciable hashrate from low clocks goes up linearly, and so does the chip cost (which is the most significant factor in machine cost).
Im no rocket scientist so correct me if im wrong, When they do chips big scale u get class 1 chips, class 2 chips & so on?? When they build current miners they would want all class 1 wouldn't they?? If so why not use the lower class chips that may have been binned for in-efficiency?? |
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Does anyone but me think all bitcoin miners should be built at maximum underclock & volt & set them up to run a max 1500w.
This will give the best efficiency, With liquid cooling u could nearly kill the noise problem overnight
Even with fan cooling noise would be a half a current S4 is pumping out at 60db and more.
Starting a this point would then allow the creator to let the kids go harder & offer a 2nd solution to this miner by offering to sell it with a bigger power supply for an addition fee giving people to options say like a Max 2000w
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with 3024 and consumption of 1443 the performance is a little above the that from a antminer s5, roughly 7%
because you have 3024:1443=1155:590 = 2,09=1,95 difference is 0.14 which is around 7%
Are u not happy with a 7% boost in efficiency? Cause at this point there is nothing new on the market, Any boost on what we have is still better than what we have... This will make ur miner run quieter cause the fans don't need to be so fast to cool them... And i notice u said its 7% better than the S5.... I was making the comparison using specs from S4 chips so make it more like 12 - 15% better than an S4... I dont actually have a S5 so can u tell me what the best underclock using the standard bitmain interface Or better still can u tell me what freq & volt u can set the miner up at ie the S4 does Freq 200 volt 0725 does 2th at 1400w at Freq 100 volt 0725 does 1th at just over 700w |
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How about the biggest underclocked miner...
Max gh per watt
Max watt approx 1500
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windows link to mega doesnt work for 1.3
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On another note how about building the biggest miner u can but undervolted??? Think about this for a minute cause i dont want u to say fuck we will just boost the power & overclock it... Think about this... (This is what bitmains S4 was based on so im using there data) If a S4 could run 40 chips (As it does) and downclock to 0.60v or 0.48 w/g on wall  and achieve 1000gh (1th) 481w on the wall. Then u could achieve a 3024gh (3th) miner running at 1443w at the wall.... ---------------------------------------------------------------------------------------------------- Hey bitmain if u have so many BM1382 asics left over here's an idea! |
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Anyone seen this?? http://www.cybtc.org/article-61-1.htmlBitmain! Dogie! Have u guys seen this & whats ur thoughts?? Any chance something like this might get done on Bitmain products in the future?? ----------------------------------------------------------------------------------------------- On another note how about building the biggest miner u can but undervolted??? Think about this for a minute cause i dont want u to say fuck we will just boost the power & overclock it... Think about this... (This is what bitmains S4 was based on so im using there data) If a S4 could run 40 chips (As it does) and downclock to 0.60v or 0.48 w/g on wall and achieve 1000gh (1th) 481w on the wall. Then u could achieve a 3024gh (3th) miner running at 1443w at the wall.... ---------------------------------------------------------------------------------------------------- Hey bitmain if u have so many BM1382 asics left over here's an idea! |
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I've got an S4+, I've seen a few weird behaviors on it, what does this fix?
Not sure 100% I just know this is what bitmain emailed me with, when i reported the machine went crash after down clocking it, and the fact it was failing to shutdown after going past 80c (the temperature stated for shutdown in the gui) Fuck that's not good! |
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Who sayed any thing about more air flow? There is less air folw that the standard fan. So that story about you sensor is bla. So what to do when you have less air flow and you want more cooling.....  Increase the cooling surface   Im with Phil on this one..... Top work, I don't have a S5 so i can't toy with the idea but now u have me thinking about other alternative cooling solutions... |
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If in doubt buy with paypal!
U can always get ur money back, Hasn't everyone learnt this one from BFL???
Ps i havent even bothered to check the listing as i can smell scam central & until someone proves it otherwise, Im happy right where i am..
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The best u'll do here is the best personal miner gh per watt & that prize goes to the bitmain S5 till they workout how to underclock...
0.5w per gh
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Are u using nice or westhash??
If so update ur miner for extra nonce...
Other wise u'll need to run a stratum server otherwise it times out..
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For Australian's Knowledge...
The ATO ruled that if u mine as a company for profit u must pay tax.
As an individual u can earn up to $10,000 before any tax is paid..
As a Aussie individual with 3th of power (I know its not much but prob more than most) i have only made about 12 coins in the last 12 month at approx $300 a coin thats $3600 minus about the same in power costs i neither made nor lost money
Not that the tax man should get any of it anyway, Greedy bastard he is..
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