https://youtu.be/pu6qtsuw8-4
I hope this is a bit better quality.
I will post more tests and vids soon.
Topic: World biggest bitcoin /SHA256 miner 7.7T@3400W - page 3. (Read 16149 times)
You can see we changed the freq up a bit
I wonder why Fan 2 is higher than the others? A few RPM sure, but 240ish seems like something is partly blocking it, different model from the rest FNAR, or something wierd going on?
Are the front fans push or pull? If they're push, would make more sense to try unplugging the rear fans and see how that affects cooling IMO.
https://www.youtube.com/watch?v=itpcni266aA
Quick video setting up the S5+
Here's the first run but one board failed due to paper clip jumper on PSU
https://www.youtube.com/watch?v=mnjPqqQxZWI
Quick video setting up the S5+
Here's the first run but one board failed due to paper clip jumper on PSU
https://www.youtube.com/watch?v=mnjPqqQxZWI
A humble request to upload some better quality video's instead of the one you have uploaded,we really can't see anything proper in your videos,that's quite disappointing.
Sorry those were quick videos from my iPhone
https://www.youtube.com/watch?v=itpcni266aA
Quick video setting up the S5+
Here's the first run but one board failed due to paper clip jumper on PSU
https://www.youtube.com/watch?v=mnjPqqQxZWI
Quick video setting up the S5+
Here's the first run but one board failed due to paper clip jumper on PSU
https://www.youtube.com/watch?v=mnjPqqQxZWI
A humble request to upload some better quality video's instead of the one you have uploaded,we really can't see anything proper in your videos,that's quite disappointing.
nice what is the real performance in the pool?
Damn those fans are going flat out, and seemingly without reason. If you're at 25C ambient, then even at a 40C ambient those chips would be at 60C = still far below the cutoff. May be able to get away with removing / unplugging the front 3 fans, especially at that ambient.
We removed front fan power and
Noise level was the same, chips immediately rose to 70C back fans spun to 4700rpm we aborted test.
You can see we changed the freq up a bit
nice what is the real performance in the pool?
Damn those fans are going flat out, and seemingly without reason. If you're at 25C ambient, then even at a 40C ambient those chips would be at 60C = still far below the cutoff. May be able to get away with removing / unplugging the front 3 fans, especially at that ambient.
We are going to see what happens
will post results soon. nice what is the real performance in the pool?
nice what is the real performance in the pool?
Damn those fans are going flat out, and seemingly without reason. If you're at 25C ambient, then even at a 40C ambient those chips would be at 60C = still far below the cutoff. May be able to get away with removing / unplugging the front 3 fans, especially at that ambient.
nice what is the real performance in the pool?
nice what is the real performance in the pool?
if someone manages to find a push=>pull solution for more quiet fans i think i will by one of this babies...if not, i'll just wait for the s7.
nice what is the real performance in the pool?
I've got a couple more videos uploading on you tube if anyone wants to see a bit more about this.
It really is quite nice. The total weight seems to be the same as 2 S3's
It seems built sturdy the sound was t nearly as bad as expected. Up close about 90db and 2 feet away 75db
I anticipate a much louder operation running the 2880 IBM PSU's but this was tested with corsair 750 Gold @ each blade. @353W/blade X9 plus fans and control board. Running factory clock settings
I will get as much info out as I can as soon as I can.
It really is quite nice. The total weight seems to be the same as 2 S3's
It seems built sturdy the sound was t nearly as bad as expected. Up close about 90db and 2 feet away 75db
I anticipate a much louder operation running the 2880 IBM PSU's but this was tested with corsair 750 Gold @ each blade. @353W/blade X9 plus fans and control board. Running factory clock settings
I will get as much info out as I can as soon as I can.
https://www.youtube.com/watch?v=itpcni266aA
Quick video setting up the S5+
Here's the first run but one board failed due to paper clip jumper on PSU
https://www.youtube.com/watch?v=mnjPqqQxZWI
Quick video setting up the S5+
Here's the first run but one board failed due to paper clip jumper on PSU
https://www.youtube.com/watch?v=mnjPqqQxZWI
How difficulty adjustment works:
Every 2016 blocks, the Network adjusts the current difficulty to estimated difficulty in an attempt to keep the block generation time at 10 minutes or 600 seconds.
Thus the Network re-targets the difficulty at a total difficulty time of: 2016 blocks * 10 minutes per block = 20160 minutes / 60 minutes = 336 hours / 24 hours = 14 days.
When the Network hashrate is increasing; a difficulty ( 2016 blocks ) should take less than 14 days. How much less can be estimated by comparing the % Network hashrate growth + what the Network hashrate was at the beginning of the difficulty ( 2016 blocks ) against what the Network hashrate was at the beginning of the difficulty ( 2016 blocks ). This is only an estimate because you cannot account for "luck"; but you can calculate reasonably well using explicitly delimited stochastic ranges.
The easy way to think about this is to look at this graph and see how close to 0 the current data points are on its y axis. If the blue line is above 0 the difficulty ( 2016 ) blocks should take less than 14 days; if it is below it should take more. It hasn't been below 0 in a very long time.
http://bitcoin.sipa.be/growth-10k.png
Every 2016 blocks, the Network adjusts the current difficulty to estimated difficulty in an attempt to keep the block generation time at 10 minutes or 600 seconds.
Thus the Network re-targets the difficulty at a total difficulty time of: 2016 blocks * 10 minutes per block = 20160 minutes / 60 minutes = 336 hours / 24 hours = 14 days.
When the Network hashrate is increasing; a difficulty ( 2016 blocks ) should take less than 14 days. How much less can be estimated by comparing the % Network hashrate growth + what the Network hashrate was at the beginning of the difficulty ( 2016 blocks ) against what the Network hashrate was at the beginning of the difficulty ( 2016 blocks ). This is only an estimate because you cannot account for "luck"; but you can calculate reasonably well using explicitly delimited stochastic ranges.
The easy way to think about this is to look at this graph and see how close to 0 the current data points are on its y axis. If the blue line is above 0 the difficulty ( 2016 ) blocks should take less than 14 days; if it is below it should take more. It hasn't been below 0 in a very long time.
http://bitcoin.sipa.be/growth-10k.png
It's not about home miner problem ... The real fact here's that very soon in upcoming January the blockchain is gonna turn half
July 2016, actually - late in July by current estimate, but with hashrate almost constantly increasing that date estimate keep creeping forward a little. I'd guess the actual halving will be mid-July 2016.
ROI on this unit before that point depends mostly on your electric cost, and somewhat on the rate of difficulty increase. I believe, based on my estimate, that a S5+ will still be profitable after the halving - but only BARELY and not for all that long afterwards.
I suspect that the wiki page hasn't been updated in a while, if it's still estimating November - but I think June is a bit pessimistic. Possible if difficulty explodes at some point due to rapid adoption of next-gen miners and the current stuff doesn't get shut down very fast, but I don't think that's REAL likely.
The S5 is back in stock now, with a "shipped within 10 days" note. Guess they're getting a bit more "flexable" about their batching as their inventory goes down on their farm....
It's not about home miner problem ... The real fact here's that very soon in upcoming January the blockchain is gonna turn half and so 7.7 Th would be almost equal to 3.3 Th means it would requires the double of the current hash power while more increase in difficulty but also expecting the rate to get high as well.
Upcoming januari- it is a chronology of the Mayan ?
http://bitcoinclock.com/
Reward-Drop ETA: 2016-07-27 16:38:45 UTC (49 weeks, 4 days, 23 hours, 50 minutes)
Yeah i never heard Jan 2016 either from any logical source. Sound like someone meant to say Jun and he typoed or misread to Jan. In a nutshell we have about a year. A little less. That clock seem very accurate, although it will probably get knocked ahead bit by bit to a slightly earlier date.
Yeah the clocks says July, but It could shift to June(my guess) if diff has steady +2 % or even August if diff has steady -2%
It's not about home miner problem ... The real fact here's that very soon in upcoming January the blockchain is gonna turn half and so 7.7 Th would be almost equal to 3.3 Th means it would requires the double of the current hash power while more increase in difficulty but also expecting the rate to get high as well.
Upcoming januari- it is a chronology of the Mayan ?
http://bitcoinclock.com/
Reward-Drop ETA: 2016-07-27 16:38:45 UTC (49 weeks, 4 days, 23 hours, 50 minutes)
Yeah i never heard Jan 2016 either from any logical source. Sound like someone meant to say Jun and he typoed or misread to Jan. In a nutshell we have about a year. A little less. That clock seem very accurate, although it will probably get knocked ahead bit by bit to a slightly earlier date.
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