Query: How is the miner connected to the home network? Hardwire only using jacks and cat5 cables? Any chance for a WiFi option as well as the hardware (for setup) connection? Hmm, might also be a good chance to reuse the WiFi boards and hardware from s1's... I ask because it seems the OPL LAN bridge between house and garage is acting up again -- it runs warm to start and doesn't seem to like a hot garage  So, need to setup a WiFi link from my home router to there... Side note to this is that my s7b6 normally draws 1090w as reported by the UPS feeding it, when in loss of internet 'safe' mode power drops to 390w. So far fans always stay running at my set 85% but if they ever stop.... For the new miner - how about the MC having a safe mode to have the V regulators feeding the ASICS to shut down when the network connection is dropped and the ASIC's are just twiddling their thumbs? Along those lines, Why did Bitmain change drop using OpenWRT? I loved the data traffic graphing it offered. |
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Yeah, I coulda. Even brought my checkbook yesterday when it was supposed to show up before UPS decided it should take the scenic route. But it dinna show in the morning so I used their phone ccard payment. Nice agent btw. Anywho, just said screw it and them figure it out by Monday.
Only real significant bitch is that I was going to take my last 4 s5's at work offline to send to Sidehack for his Compacs and replace with the s9 still coming out ahead by >6th with 1/2 the power use.
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Mine showed up today. Mining away right meow.
Mine sort of did... UPS showed up at work to drop it off but... It was still tagged as COD for the customs/brokerage fee despite me paying UPS with a CCard around noon on Thursday. I have the receipt and UPS clearance conf# but he said since their delivery system hasn't released it yet if it clears he'll be back around our normal pickups time to drop it off, if not, should be Monday. 5:00p came and went, no miner  WTF is wrong with UPS's accounting systems?  |
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Mineral oil and 3M's Novec fluids are totally different things. The higher viscosity and much poorer thermal transfer properties of mineral oils means that great care has to be taken to ensure enough heat is pulled fast enough from the chips. With 3M's thermal xfr fluids, they are thinner than water so flow very well (rather like butane in a lighter) and more to the point, when in the phase-change range (boiling) heat xfr ability goes through the roof because the fluid in contact with the heat source wants very much to stay at the phase-change temp.
That said, oil is still a tempting idea.
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Gotta love how Bitmain made the extruded cases to be able to lock together in a row or in cubes for easy handling  On the s7b1, mine has been simple great! It's been OC'd ever since I got it to run at 700MHz and according to Kano holds average of 5.3THs with common Pk of 5.7 to > 6THs. Astounding. I have a b5 running the same. The other s7's seem already near max performance at stock speed and do not take well to OC. Oh well. After I do the Sidehack under-volting/clocking of them won't matter. |
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Damnnit... I paid UPS yesterday for fees owed, truck came today with the miner on it and -- driver said it was COD. Showed him the receipt and UPS conf# and doesn't matter 'cause the system still has not been updated for it...
Hopefully by time of the days-end pickup it will have cleared so I can get it today vs Monday. Grrrrr..........
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First, how I do my filter/siren killers:   Most of my main Ant colony heat removal. I'm using a 12" true ventilator blower with flex ducting https://www.globalindustrial.com/p/hvac/fans/blower/portable-ventilation-fan-12-inch-with-16-feet-flexible-ducting to move the heat from the (upstairs) room out to the main production floor. Gotta say that despite having 18.2kw worth of s7's up there, so far max temps in that area have only hit 85F. Not bad at all.     83 cubic meters/min = 2931.117 CFM Best thing is that being made for use with ducting CFM does not suffer to much. Cost $190.70 inc shipping. |
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As a person who has received invoices for hundreds of thousands of dollars worth of miners Customs Duties have always been $0, unless the tariff code was entered wrong, however there have always been Customs Fee's and Brokerage fees, either with private brokers or UPS/Shipping company brokerages.
Ok call it Customs fees and brokerage fees, either way it's has been very rare I've had to pay them and since I've gotten at least 1 or 2 of pretty much all of Bitmains generations of batch-1 miners - they've been pricey. |
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@ Philipma, Ditto. Since April 2014 think this is only the 3-4th time I've had to pay duty. I could look back and see what time frames/orders I did when I got chargde but too lazy..  But kinda seems right. |
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my secondary account. I am philipma1957
gear came . fees for 2 units = 89 usd
could be worse. I think I won't ask many questions for the time being.
That is on par with what I paid today to clear my single B3 miner. I asked the UPS agent for a breakdoen and it was a total of $46.86 mostly Customs duty and something like $3-4 for the UPS brokerage fee to process the Customs duty and import clearance. Either the import thresholds have changed or the miner is mis-marked for shipping code. I'd have to look up the exact code but is supposed to be for: Electronic equipment, computer, no terminal or display or something like that. It also took an odd hop in Japan -- usual route is Shenzhen > Osaka > Anchorage > etc. This time it arrived in Narita first but then left from Osaka. Er? A bit of a trek there. FYI, I wrote to Bitmain about this and they claim that they haven't changed the shipping codes. The implication is that it's the dollar figure triggering the difference, or UPS has gotten gready. The fact that every S9 was in excess of $2k while every S7 was under ($1.8k I think) leads me to think that we're in that gray area that Phil indicated where anything north of $2k might be interpreted as commercial and hence subject to duty. I'm going to take this up with UPS, but I doubt it will change anything. Bitmain needs to understand that the $2k threshold has an impact on the US market. They should return to pricing that's more sane. They've been especially greedy this time. They probably would have made much more money if they had priced the S9 lower, assuming that they could fill the unit demand. Could well be that US Customs is looking at it more as well. I got my both my b1 and 1st b3 without duty being charged and they both were more than this 3rd one. Getting 3 over $2k value each in ~1 month might raise a flag in tracking systems. |
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yep. Only dif is that I checked yesterday and saw I had to pay US Customs/broker fee of $46.85 to clear for delivery. Then I checked earlier this evening and saw mine went to Korea before heading here. WTF? I've never seen UPS use this route before...
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Just had an issue with my lil' s7b6 that brought this idea back in me mind... Since we are talking about using the MC on the hashboards to do more than pass along info to the ASIC's and now letting it do real monitoring/control functions, how about an intelligent power glitch or internet loss recovery/restart process? Looks like a worst-case example of what can happen is https://bitcointalk.org/index.php?topic=1524802.msg15339312#msg15339312My s7b6 is in the garage and power by one of my fav UPS's feeding 2x HP supplies fed off its (perfect) 120vac so that end is covered. However, since I use an over the power-line network bridge between house and garage it has to be on a 'bare' unprotected socket. Power must have glitched because lost connection to the b6, it went into full fan safe mode. Noticed it was offline, had to unplug the OPL bridge and plug back in to restore internet connection. Connection restored, miner still needed 2x soft reboots to recover. As long as the RPI and CG/BFGminer stay alive do they have links to respond to intelligent or semi hashboards going into safe mode and then recovering on their own? Or say a watchdog prog monitoring hashboard health stats to trig the necessary responses? Oh, along the lines of the burnt data cable thread... data isolators so power finding its way into data cables poses no threat. Multi-channel bi-directional ones are pretty cheap. Also perhaps could be a novel way to handle the ASIC data line voltages as it varies going up the string perhaps as well? |
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A thought on the HP CS psu's:
What form-factor is in mind? Stand-alone blocks ala' Bitmains extruded cases? (which I do love, 'specially how they can lock together. Nice touch there.) Perfect for folks to use any standard >1200w PSU. Only problem with Bitmains cube is that the shape and size is the root cause of their noise. Why their cases are not even just 2" longer to get the fans away from the heatsink fins is beyond me.
EDIT: Removed commercial/industrial and rack mounting from the discussion.
I for 1 would not like to drop 10THS or more from PSU failure. If the miner is self contained w/interal PSU, considering the HP's bare-bones go for around $40 on up is cheap protection toallow for2x pre-wired PSU sockets for folks with >200vac available. Better yet, if room allows ya could optionally add more hash boards in (but lose 1+n redundancy unless there are 3x PSU slots).
As a side note: I would kill for someone to make a little case for the HP's with 4 or more slide in bays using pre-wired for load-share sockets tied to a set a of copper bus bars.. I still have around 6 of the HPs still in OEM anti-static bags I'd love to put to use in multi-kw power brick...
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Back to the CC ideas being thrashed out and such: 1st - the 1kw power fits perfectly with me. For one, it is a perfectly reasonable load for any ONE household 110v 15A circuit. Also fits well with those who have several 1500VA/1300w dual-conversion 120v UPS's hanging around and ta' boot is a perfect match for the uber-available HP 1200w server supplies when fed >200vac On coms, still like the private/public networking. Ja that means 2x NIC's but - if pressed to use RasPi's and such I do believe they have USB-LAN adapters for them so there ya go. But... As has been brought up, even the newest RasPi's are easy to max out with too many connections (miners) under its control. So: Use a cheap fanless mini-PC. I got a fairly cheap one in 2014 to control my first 2 miners -- two lil' BFL 10GHs cubes. The PC is about the size of a phone book and has a 2. something GHz dual-core Atom CPU, 64gb ssd. Takes 20w to run and cost around $200. Ja only has 1 LAN port but again, get a USB-LAN adapter fer it and done. Since throughput vs CPU power is not my bailiwick I can't say for sure but I'd think that even that would be quite an improvement over a hobbyist/dev board like a RasPi, BB, Audrino, etc. |
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my secondary account. I am philipma1957
gear came . fees for 2 units = 89 usd
could be worse. I think I won't ask many questions for the time being.
That is on par with what I paid today to clear my single B3 miner. I asked the UPS agent for a breakdoen and it was a total of $46.86 mostly Customs duty and something like $3-4 for the UPS brokerage fee to process the Customs duty and import clearance. Either the import thresholds have changed or the miner is mis-marked for shipping code. I'd have to look up the exact code but is supposed to be for: Electronic equipment, computer, no terminal or display or something like that. It also took an odd hop in Japan -- usual route is Shenzhen > Osaka > Anchorage > etc. This time it arrived in Narita first but then left from Osaka. Er? A bit of a trek there. |
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I haven't looked into details, but this device doesn't look like it would be suitable for coin mining. <snip> Was only using that as an example of a simple and dedicated-purpose TCPIP networked device typically used in concert with others of its kind. |
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My aversion to USB comes from using them as COM ports under Winbloze for around 10 years... Until recently all the lasers we use in our systems communicate in-depth to a GUI or other software via RS232 which meant using (non-counterfeit) serial-USB converters. Great until a couple get unplugged. Mix them up on reconnecting and you get to find what new com ports are used and which device is on them... (now coms are done via EtherCAT with USB as a backup) Now these guys http://www.newson.be/doc.php?id=CUA-XXX-XY2-24V have a pure TCP mode for (galvo) controllers. Just enough with basic Find Me/Report address/Reassign IP address and protocol functions to work on a private network. Out of the box they all default to a fixed 172.xxx.etc address but since under control of a dedicated program (for mining CG/BGFminer) the private network link is separate from the one to the Outside World and using a different LAN adapter anyway so what? Yes that dictates hubs and a separate cable to each board. In that respect CG/BFGminer would act as a bridge between the 2 local (private) and WAN LAN adapters. Each hash board would be 'smart' only in the sense that it can setup a link to the mining control program, report who/what it is and capable of doing eg report local temps and or chip temps, V/F control as well as handle the housekeeping task assigned to it eg COLD/Hot V stepping, fan speed, etc. Since in our laser systems we use 4 of those galvo controllers along with 4 network links to the (4x) lasers + a power strip and a PLC w/touchscreen, plus Keyence height sensors all on the machine network as well, well Find Me and Reassign addressing makes it all a piece of cake and utterly repeatable. Now if USB can provide positive & repeatable device ID assignments for CG/BFGminer to use, then fine, but you still need one cable per hash board and hubs don'tcha? Hmm, an out of the box -- go wireless and use BlueTooth or NFC inside of the miner with the HB's talking to a link relaying via <insert name here> wired link to the outside world? Again, scads of single chip solutions for that. |
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Right, but what's the cause? I'm really looking forward to getting back to rational stability instead of sitting around waiting to get hosed by speculators. Stability is good for a currency if it wants to actually be used as a currency instead of another random nonexistent traded asset for investors to jerk each other off with.
Think I also recall something about the Fed's this week selling off the last BTC they seized from SiklRoad. That would have been a sizeable amount methinks. |
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Holy balls, you're right. Coin's down like $80 (a solid 12%) from looking at it last night. What's up?
Pre-halving Pump & Dumpers at work? Glad I sold a chunk of of BTC last week or so ago @ $695/ BTC for me Birthday/vacation coming up in a couple weeks. Also makes me feel a bit better about missing it of course rising to $785 a few days after I cashed in...  |
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Damnit. Just checked with UPS and my B3 arriving on Thursday is tagged as
"United States 06/22/2016 7:12 A.M. The receiver must pay the duties or taxes due on the package."
Time to get on the horn with them...
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