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1) Where did you buy your miners from? Hopefully Bitmain directly.
2) Are your miners behind a firewall or exposed directly to the Internet? The later is VERY VERY bad.
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I keep playing with bfgminer 5.5.0 and my antminers, but it does not appear to be stable. After 10-15 minutes I get a segmentation fault.
Tried 5.4.2 & 5.5.0 via gentoo distribution, and a hand compiled 5.5.0. All behave the same.
Any suggestions?
Run it in gdb and/or valgrind and report a backtrace. Will do. Building GDB now. |
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I keep playing with bfgminer 5.5.0 and my antminers, but it does not appear to be stable. After 10-15 minutes I get a segmentation fault.
Tried 5.4.2 & 5.5.0 via gentoo distribution, and a hand compiled 5.5.0. All behave the same.
Any suggestions?
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Where I can get that Ph/second miners. I have only 1Th/s ASIC bitcoin hashing speed.
There are no Ph/second miners. Most run S9s (13-14 TH/s) and 841s (~13.6 TH/s). We get to 2PH/sec by running a lot of them. Just came up my mind, there's a lot of years when I begin on mining (Mostly ASIC). There's need example many Canaan "moose" on 2 Ph/s. Talkin even about Avalon or AntMiner S9 Moose is just a pre-packaged collection of 841s |
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Where I can get that Ph/second miners. I have only 1Th/s ASIC bitcoin hashing speed.
There are no Ph/second miners. Most run S9s (13-14 TH/s) and 841s (~13.6 TH/s). We get to 2PH/sec by running a lot of them. |
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I am curious, does anyone use mineral oil or BitCool liquid to cool your miners. If so can you PM me. I have some questions. I am battling heat and without cutting holes into the building I am renting I need other solutions. Thanks in advance.
Jason
Encoremining
I've heard there are issues with it eating plastic away. I worked at Cray Research years ago and we liquid cooled the Cray 3 with Fluorinert (not sure of the spelling). It was inert to just about everything and supposedly you could even drink it - not that any of us technicians tried it. It also would not release a chemical cloud if a chip did burn up which I guess also can be a concern if anywhere near your living area. I have not seen anything specifically about using that chemical, but obviously some pretty high ups did a lot of research years ago. There are probably lots of other options too now since that was almost 20 years ago - but I see it is still available, so it must still be a viable product. Ah, miss those pretty Cray YMPs! |
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What is most disturbing is that said miner is being paid a very large percentage of every block reward and it yet seems that to-date they have not done any valid work. Doesn't matter how bad their luck is, given their size if the miner farm was running correctly statistically they would have several hundred blocks under their belt by now.
So far they have found zero blocks and yet the Slush operators don't care? Personalty I'd boot them until the situation is corrected!
As other pools have done... |
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Hi all - Thought it would be fun to thow my old Antminer U1s and U2s against a bitcoin -testnet. Plugged the Antminers into a usb hub, and plugged those into a Gentoo linux distribution, they should up just fine and now I have (7) ttyUSB[0-6] /dev entries - a good sign. Starting Bfgminer 5.5.0 with the command line: bfgminer -D -S bitmain:all -o $POOL -u $WORKER -p x The screen clears and I get: [2018-07-12 11:57:00] Waiting for devices; press 'M+' to add, or 'Q' to quit After a minute or two the process allows me to do the M+ but does not find any devices, even if I use the full /dev/ttyUSBx format. Any hints? Use to run bfgminer a lot back in 2014, so I suspect I'm just doing something stupid, like using the wrong -S argument for antminer U1s. My portage USE flags contain "... sha256d bitmain". Also: Dev ~ # bfgminer -V
bfgminer 5.5.0
Lowlevel: usb vcom
Drivers: bitmain
Algorithms: SHA256d
Options: ncursesw6
Update: Dug through the code a bit and discovered "bitmain" apparently is for S1-S5 only. Rebuilt using the "icarus" instead of "bitmain" USE flag and now see: Dev ~ # bfgminer -V
bfgminer 5.5.0
Lowlevel: usb vcom
Drivers: antminer cairnsmore compac erupter icarus
Algorithms: SHA256d
Options: ncursesw6
Of course, the startup script was modified to use: antminer instead of bfgminer. bfgminer -S antminer:auto -o $POOL -u $WORKER -p x Noticed when I tried M+ adding miners a VERY brief "you don't have access" type message poped up, so I tried as Root and vola! it found the devices. Final note: at least for antminers, it should be "-S antminer:all" not "-S antminer:auto". Is there a way to run bfgminer on a regular user instead of as root? |
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Just a lot of reported problems with the auto-freq November firmware. There was a previous release on the Bitmain site, but that have pulled it.
You can see if your controller will accept the 650 fixed frequency firmware, then use the minerAdvanced.cgi page to tweak its performance. Not all controllers will accept that firmware however.
The other thing to do is to pull your system apart, pull the boards, and blow them clean. Sometimes a card will stop simply because the airflow is bad (I recently recovered a bunch of cards just by cleaning them - all had small moths and other bug parts blocking the leading edge of the heat sinks).
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If miners stopped mining, the difficulty would drop until it was profitable enough for some remaining miners to stay at it.
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So if I wanted to put in 24 S9's, would I need a intake fan that can supply a total of 24 (S9's)*300 (CFM each) = 7200 CFM? Or should I go a little higher?
Would the out take fan in the hot room need to be at the same level of the intake fan?
Actually, I'd focus on the exhaust fan and perhaps oversize it a bit to handle hot days, but no need to be excessive about it. Getting rid of the hot air is the primary goal. Then all you need to do is supply sufficient reasonably filtered (say Mirv 3) intake air. You can do that by providing approximately 1 square foot of intake per miner or by using fans. Of course, you save power by just having intake space. Given a sufficient intake opening, the fans on the miners will be happy to pump the air into your hot aisle. |
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is kano around? Need help with my account, already PMed.
thanks
Kano lives "down under" its the middle of the night for him now. Give him some time, I'm sure he will respond once he wakes up in a few hours. |
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I don't. I primarly mine BTC, with a few semi-broken miners on BTCC (mostly for fun). My one GPU rig mines ZCash. Also have some L3s I got a good price for working on LTC. But I don't switch around, no point to that.
Plenty of post on why "profit-switching" pools and approaches are meaningless, not going to repeat that here.
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Mining over wifi is not recommended - latencies can cause problems.
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Block by Alexdraw! Thank you man!
(Nice one too, good transaction fee!)
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When I checked their post history, the only posts they made were here. However, knowing how the "other" Mods
in the mining section feel about Kano, and his pool's supporters, they probably deleted every post but the ones
here.
I didn't place close attention, but suspect they posted on each forum with different new accounts. |
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Really, scammers?   These bots have been popping up all over. Strange thing it is always 2 posts back to back everytime I find it. The strange thing is, they only posted here. Nah, saw them on all the mining subforums earlier today. |
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Lets all welcome MRut to the pool. ~4.3PH and ranked as #8 now (bumping me to #9, which is great!)
Welcome aboard and hope you enjoy your stay (and tell your friends to join as well!)
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So currently it is about 1 block a day on average to be at 100%?
1day 4hr 51min 18sec Kano provides this website for that type of information: http://tradebtc.net/bitcalc.php |
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Understood and accepted.
I will not point Ebit E10 to this pool anymore.
If there are no objections, I will keep other miners running here as there were no suspicions towards them.
Mine on!
Please do keep your other miners (presumably Bitmain and Avalon) running here - we appreciate any and all significant (not CPU or GPU) hash. Again, I don't believe the ban was targetted at you as an individual, but rather at the miners you were using. |
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