Pricing is everything that comes to hardware these days.
I've seen this also at my work as electrician.
Me: this device X is a little better and reliable than the cheaper one but it costs little extra
Customer: let's go with the cheaper one
Topic: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order - page 143. (Read 531178 times)
April 28, 2017, 03:50:25 PM
April 28, 2017, 03:44:48 PM
How come the BTC Rate on the bitmain site is constantly $100 below market? are they keying of BTC-e?
"below Market' is a relative term. All depends on what currency exchanges you and Bitmain uses. There are several and can often be a fair spread between them. One site of many to compare exchange rates: https://bitcoinity.org/markets/coinbase/USDAnd this is not s9 question. Belongs elsewhere, possibly under Markets?
How do you think that does not concern the S9?
I have a question about ordering their miners and how they calculate price.
Want to apologize about this being off topic?
April 28, 2017, 03:38:55 PM
How come the BTC Rate on the bitmain site is constantly $100 below market? are they keying of BTC-e?
"below Market' is a relative term. All depends on what currency exchanges you and Bitmain uses. There are several and can often be a fair spread between them. One site of many to compare exchange rates: https://bitcoinity.org/markets/coinbase/USDAnd this is not s9 question. Belongs elsewhere, possibly under Markets?
How do you think that does not concern the S9?
April 28, 2017, 02:59:52 PM
How come the BTC Rate on the bitmain site is constantly $100 below market? are they keying of BTC-e?
"below Market' is a relative term. All depends on what currency exchanges you and Bitmain uses. There are several and can often be a fair spread between them. One site of many to compare exchange rates: https://bitcoinity.org/markets/coinbase/USDAnd this is not s9 question. Belongs elsewhere, possibly under Markets?
How do you think that does not concern the S9?
April 28, 2017, 02:47:15 PM
How come the BTC Rate on the bitmain site is constantly $100 below market? are they keying of BTC-e?
"below Market' is a relative term. All depends on what currency exchanges you and Bitmain uses. There are several and can often be a fair spread between them. One site of many to compare exchange rates: https://bitcoinity.org/markets/coinbase/USDAnd this is not s9 question. Belongs elsewhere, possibly under Markets?
April 28, 2017, 11:03:46 AM
I have noticed that the temperature sensor on S9 boards has an unusually high failure rate and it's taking down entire hashboards with it. When the sensor goes bad the board no longer hashes. This has happened on numerous occassions with our customers' gears. Does anyone know by any chance if there is a way to fix this. Does someone know where this temp sensor is located (picture would be really helpful) and if it can be swapped out/fixed/repaired, etc?
The temp sensors are actually built into the chip itself. Problem is they only pull data from chip 63 so if that one has a problem you are out of luck. It will be fixed under warranty but there is basically nothing that you can do as an end user to fix it.
April 28, 2017, 10:54:03 AM
How come the BTC Rate on the bitmain site is constantly $100 below market? are they keying of BTC-e?
April 28, 2017, 10:50:50 AM
I just upgraded my 3x 13.5TH S9s with the new firmware. All seems well thus far... TOUCH WOOD!!! 
The new one, the new new one, or the newest new new one? 
April 28, 2017, 10:45:34 AM
Code:
201704280713
* Remove the function: post mac address and remote stop mining interface
* Fix a bug of memory leak.
* Fix to support keep config when upgrade
I just upgraded my 3x 13.5TH S9s with the new firmware. All seems well thus far... TOUCH WOOD!!!
April 28, 2017, 09:54:00 AM
Code:
201704280713
* Remove the function: post mac address and remote stop mining interface
* Fix a bug of memory leak.
* Fix to support keep config when upgrade
April 27, 2017, 11:48:06 PM
I have noticed that the temperature sensor on S9 boards has an unusually high failure rate and it's taking down entire hashboards with it. When the sensor goes bad the board no longer hashes. This has happened on numerous occassions with our customers' gears. Does anyone know by any chance if there is a way to fix this. Does someone know where this temp sensor is located (picture would be really helpful) and if it can be swapped out/fixed/repaired, etc?
Also, if Bitmain provides RMA or part replacement for this sensor chip?
April 27, 2017, 10:00:26 PM
I have noticed that the temperature sensor on S9 boards has an unusually high failure rate and it's taking down entire hashboards with it. When the sensor goes bad the board no longer hashes. This has happened on numerous occassions with our customers' gears. Does anyone know by any chance if there is a way to fix this. Does someone know where this temp sensor is located (picture would be really helpful) and if it can be swapped out/fixed/repaired, etc?
April 27, 2017, 08:19:03 PM
oh, re:
As in the AC power plug? Don't do that... As you may have noticed there can be a nice fat spark from the high-side DC caps charging up. Rather hard on the plug and socket pins.
If is a server supply there will be a DC-ON jumper or switch. On the Bitmain APW supplies it is the green jumper. Use that to switch the DC on and off.
Quote
Typically when I want to reset the miner I just unplug it and replug it back in, and it normally hashes fine.
As in the AC power plug? Don't do that... As you may have noticed there can be a nice fat spark from the high-side DC caps charging up. Rather hard on the plug and socket pins.
If is a server supply there will be a DC-ON jumper or switch. On the Bitmain APW supplies it is the green jumper. Use that to switch the DC on and off.
April 27, 2017, 08:17:44 PM
Yup mine came with Autotune...
But I checked my kernel just to follow along, mine does have "Check chain[5] PIC fw version=0x02" so you're saying I can go backwards to older firmware?
No, if it had "Check chain[5] PIC fw version=0x02" and it came from the factory with manual, then you could go back to manual.But I checked my kernel just to follow along, mine does have "Check chain[5] PIC fw version=0x02" so you're saying I can go backwards to older firmware?
If it had "Check chain[5] PIC fw version=0x03" and it came from the factory with manual, then you likely could not go back to manual.
If it came from the factory with auto, then you can only usefully go between autos. Some autos will run manual fw, but you'd likely be overclocking 50+% of the chips and risking burnout. Those that came from the factory with auto have a per chip setting (manual sets every chip with the same frequency) so that weaker chips can run on the same board as higher chips; one chip might be set @ 440 and others set at 675+, so if you went to manual and set anything over 440, then you'd be pushing the chip past it's known limit.
April 27, 2017, 07:53:07 PM
Yup mine came with Autotune, so I'll just leave as is for now.
^^ great thanks!
Edit - not sure exactly what you mean re: "On most of the older manual boards, V3 (like "Check chain[5] PIC fw version=0x03") of the board fw will not roll back and hash properly (even when reflashed with V2); V2 usually will go backwards to older firmware if it's never been up to V3."
But I checked my kernel just to follow along, mine does have "Check chain[5] PIC fw version=0x02" so you're saying I can go backwards to older firmware?
^^ great thanks!
Edit - not sure exactly what you mean re: "On most of the older manual boards, V3 (like "Check chain[5] PIC fw version=0x03") of the board fw will not roll back and hash properly (even when reflashed with V2); V2 usually will go backwards to older firmware if it's never been up to V3."
But I checked my kernel just to follow along, mine does have "Check chain[5] PIC fw version=0x02" so you're saying I can go backwards to older firmware?
April 27, 2017, 07:41:06 PM
...Am I correct in my understanding that I am stuck with my current firmware (Autotune)? I'm not as computer-literate as most of you here, so I would be cautious to try other firmwares, but I would be interest to know if I have other options?...
If it came with auto, then yes you're "stuck" with it. If you upgraded from manual, then maybe. On most of the older manual boards, V3 (like "Check chain[5] PIC fw version=0x03") of the board fw will not roll back and hash properly (even when reflashed with V2); V2 usually will go backwards to older firmware if it's never been up to V3....Also another question, sorry for the spam - is there any way to prevent the miner from generating a new IP every time it is reset? I want to build a farm with many miners, so it is important for me to know which specific miners are on which circuits so I can do remote resets. Cheers
Most routers have "address reservation" under LAN settings. Just find the section that applies to your make and model and set a static address to whatever you want using the MAC of the miner(s). April 27, 2017, 07:30:36 PM
Anyways, I got a S9 related question. I notice sometimes when I reboot the S9 through it's firmware, it will restart and 1 board may not be hashing. Other times it reboots fine. I would say 50% of the time it reboots and one board is down. Why does this happen? Is there anything I can do to prevent this? Typically when I want to reset the miner I just unplug it and replug it back in, and it normally hashes fine.
Thanks
With the s9's I will sometimes see one board come up about 500GHs or more slower than the others, 1-2 soft boots and then it picks up speed and is happy again. Looking at the logs when happy the twitchy board is at a slightly higher Vcore than when unhappy.
Yeah could just be an autotune thing. Today it happened two ways - one time, the miner status page clearly displayed that one board was not hashing and in total I was getting 9,400 GH/s out of usual 14,000 (sorry I didn't look at the boards LED, darn). Then I did another soft reset, and the miner status page showed that everything was running perfect (14,000 GH/s ish average), but my slushpool account was only displaying the 9,400 and I waited 30 mins and refreshed slush, no change. Strange... Eventually I just did a hard reset and all has been well since. In my experience since I got my first S9 back in November, the hard reset usually works but the soft reset has been giving me issues.
Am I correct in my understanding that I am stuck with my current firmware (Autotune)? I'm not as computer-literate as most of you here, so I would be cautious to try other firmwares, but I would be interest to know if I have other options?
Also another question, sorry for the spam - is there any way to prevent the miner from generating a new IP every time it is reset? I want to build a farm with many miners, so it is important for me to know which specific miners are on which circuits so I can do remote resets. Cheers
April 27, 2017, 07:15:46 PM
Anyways, I got a S9 related question. I notice sometimes when I reboot the S9 through it's firmware, it will restart and 1 board may not be hashing. Other times it reboots fine. I would say 50% of the time it reboots and one board is down. Why does this happen? Is there anything I can do to prevent this? Typically when I want to reset the miner I just unplug it and replug it back in, and it normally hashes fine.
Thanks
With the s9's I will sometimes see one board come up about 500GHs or more slower than the others, 1-2 soft boots and then it picks up speed and is happy again. Looking at the logs when happy the twitchy board is at a slightly higher Vcore than when unhappy.
April 27, 2017, 07:01:46 PM
ComputerGenie refer us to your discussions with actual Dev's discussing all the technical issues you have with Segwit, and do that in a different thread....
Since I'm not beholden to the Core devs, nor do I wish to centralize Bitcoin around them or their beliefs, I have no need to have "discussions with actual Dev's[sic]". I'm fairly certain that if you don't like something in a specific new car, you don't "discuss it" with the designers of that car, you buy a different car.I'm guessing that it might surprise you to learn that there are functional versions of Bitcoin software that were not designed, written, or even "approved" by the Core devs (or that these versions of software don't require Core or software written by the Core team of devs). I'm further guessing that it might surprise you to learn that the handful of devs that exist in the Core project have no more actual say in Bitcoin than the same number of randomly selected people in the Bitcoin space (which is one of the most beautiful things about Bitcoin - no one group has ownership or controls it).
April 27, 2017, 06:44:37 PM
ComputerGenie refer us to your discussions with actual Dev's discussing all the technical issues you have with Segwit, and do that in a different thread.
Anyways, I got a S9 related question. I notice sometimes when I reboot the S9 through it's firmware, it will restart and 1 board may not be hashing. Other times it reboots fine. I would say 50% of the time it reboots and one board is down. Why does this happen? Is there anything I can do to prevent this? Typically when I want to reset the miner I just unplug it and replug it back in, and it normally hashes fine.
Thanks
Anyways, I got a S9 related question. I notice sometimes when I reboot the S9 through it's firmware, it will restart and 1 board may not be hashing. Other times it reboots fine. I would say 50% of the time it reboots and one board is down. Why does this happen? Is there anything I can do to prevent this? Typically when I want to reset the miner I just unplug it and replug it back in, and it normally hashes fine.
Thanks
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