I hope I got it right sir. Is this what I should do for my S9? Put a 35a fuse inline with the positive 3wires going to the Hashboard? How about the controller? Do I need to fuse it also?  Only thing I would change is the fuse size. For a s9 take it down to 20-25A per cable. Again, to save typing, ref https://bitcointalk.org/index.php?topic=1769399.msg18004006#msg18004006 |
|
|
|
I see what you mean, 3 phase 220 then, which would also require bigger wire i would assume? and how many of the antminer S9's could i plug into each receptacle ?
3-phase? No, residential power in North America is single-phase power changed to split-phase 220v (110V-Neut-110V) by the Utility transformers on the poles. It is still just 1 phase, just that the pole transformer has a center tap providing the Neutral (which is also tied to ground at the panel) and that is what feeds the house. ref https://en.wikipedia.org/wiki/Split-phase_electric_powerThree-phase is entirely different and will either be 3 hot lines with a Neutral (Wye) or 2 hot lines with the 3rd also tied to ground - no Neutral per-se (grounded Delta). |
|
|
|
|
Looks like Canaan may have dropped the 721's - they are no longer shown on their website. It now only shows the 741 and their controller.
|
|
|
|
I hope I got it right sir. Is this what I should do for my S9? Put a 35a fuse inline with the positive 3wires going to the Hashboard? How about the controller? Do I need to fuse it also? Give that person a cigar, they got it right! As for the controller, while there is nothing there using very high power and I don't ever recall reading about one catastrophically failing on an Antminer actually it *would* be a good idea to fuse it. Because the fans pull a fair bit of current - like up to about 2.5a each at full speed - I'd think an 8-10a fuse would be perfect. |
|
|
|
|
Now back OT, was wondering if the hub uses just a single 5v buck or multiple ones spread across the ports.
The 7-port hub from Plugable.com for my sticks has 3 regulators in it. 2 of them feed 2 ports each and the 3rd feeds 3 ports.
Makes sense to do that as it keeps the traces carrying 5v power short (and can be lighter copper) and eliminates the chance of the last port fed being starved.
|
|
|
|
More likely it's a GigaMPZ board. THASS it!. Now I dismember finding them first...  |
|
|
|
I didn't start making a common-slot breakout until 2015. The PCB has gone through three revisions: one with 4x 4-position terminals and 10x PCIe (Novak's first prototype) and two with 4x 4-postion terminals and 12x PCIe (Novak's production version and a revision). I built a DPS2000 breakout with 4x 6-position terminals and that's the only thing that didn't have either 2x (Dell 750W) or 4x (DPS800/HPCS) 4-position terminals. The only thing I was making in mid-2014 was the Dell 750W board. We tested DPS2000 prototypes in July but didn't start batching until later in the year.
All my breakout boards are also the same width as the PSUs they connect to. No way to match a 3.5" supply with 18 terminals in a row unless they're crappy and small, and I don't use crappy small terminals.
Check your breakout again. I bet it doesn't say GekkoScience.
I'll take a pic tomorrow. There is a big white "G" on the ones I have which I assume is the Gekko logo? I would have started using the HP 1200w CS supplies maybe late in the s3+ cycle and definitely for the s5's. Hmm, the mystery deepens. Just looked at my emails with Gekkoscience and all I see is stuff re: the DPS2000 supplies and cables for them. |
|
|
|
The HP common slot board can be made with 12x PCIe jacks or four 4-position screw terminas, two per rail, so only 8 pairs - probably just a typo. Um, not to dispute with the maker but I just looked at one of the CS breakouts I have from you -- 18 terminals on what looks to be a single strip giving 9 +/- pairs. Grant you I got mine around mid-2014 so I take it you changed them? |
|
|
|
Canaan finally got off their duffs a couple hours ago and sent me the BTC amount/address for 2x of the 741's that I placed an order for 3 days ago (they were out of 721's). That said, once they get this far they seem to move fast so I'll hopefully have the pair by the end of the week and will post how they do. So far aside from this issue with what Awesome Miner reports  my 3x 721's run flawlessly. Per the Avalon GUI the trio run a perfectly smooth 19-20THs and CKpool reports a steady 18.5-19.xx THs. I'm waiting to hear from Patrike as to what those 40+THs spike are all about. |
|
|
|
edit: Can you make a "common slot" adapter?
Sidehack already makes/sells a lil' HP CS breakout with terminal block connections for 8 +/- wire pairs. Just tie a PCIe cable or wires from a barrel cord to it and plug in... edit: corrected wire pair count |
|
|
|
|
Actually, I assume the hub will use a 12v supply to feed 5v regulators inside it. Keeps the current down for a (probable) barrel jack and lets us use whatever 12v supply we have. Correct? A terminal strip would be a nice alternative - easy to wire to.
|
|
|
|
Just *how* is an obvious failure of the hash board Vcore regulator -- probably the MOSFET's shorting -- the fault of a PSU? Just what in a PSU do you assume could have prevented this?
The Bitmain PSU can supply up to 133A continuously and probably at least 10-15% more before tripping out, the combined maximum current rating of 3x PCIe connectors is only 81 amps. Vcore regulator blew, all power took the easiest path - through the short circuit - and so yes, the connectors and wiring smoked. For what it's worth, I have 25 of the AWP1300 supplies and have had ZERO problems with them. Don't know about the newer APW1300+ but the older ones are very well made.
Now should all miners have a fuse between the power sockets and Vcore? IMHO yes they should but that is just speaking as an Engineer with over 50 years of dealing with power electronics...
Yes sir.. My power supply is still working with 12v.. that's odd. With your years experience in electronics. what can you suggest? Do I just put a 80a fuse between the power supply and miner? How do I put it? one fuse for the positive, and one fuse for the negative? I have 3 more S9's coming nxtweek. I can surely have a super advice from you sir. Thanks. Not going to retyped it all again so ref https://bitcointalk.org/index.php?topic=1769399.msg17968291#msg17968291Done that way each cable is protected plus easier to wire and fuses cost less. |
|
|
|
Your P/S is a brute. Short-Circuit protection should have kick-in and save the day. A fuse should be mandatory in any high power design. In this case, miner. Didn't see any so far, and many manufacturers out there.  My PSU is the Bitmain APW3+-12-1600W, It says it has every protection. but it failed.  A waste of money. Not only crap miners, but crap PSU's. Way to go Bitmain Ah I just read this, it's the shit power supply Bitmain sells that fucked up, not the miners. I guess that's a relief that it's their psu's and not miners that are randomly catching fire lol. Makes sense I suppose. Definitely go with some good server power supplies in the future. Just *how* is an obvious failure of the hash board Vcore regulator -- probably the MOSFET's shorting -- the fault of a PSU? Just what in a PSU do you assume could have prevented this? The Bitmain PSU can supply up to 133A continuously and probably at least 10-15% more before tripping out, the combined maximum current rating of 3x PCIe connectors is only 81 amps. Vcore regulator blew, all power took the easiest path - through the short circuit - and so yes, the connectors and wiring smoked. For what it's worth, I have 25 of the AWP1300 supplies and have had ZERO problems with them. Don't know about the newer APW1300+ but the older ones are very well made. Now should all miners have a fuse between the power sockets and Vcore? IMHO yes they should but that is just speaking as an Engineer with over 50 years of dealing with power electronics... |
|
|
|
<snip>
But if i did have to mess with the service i would have to run a double 15A Breaker on 120V line to power the AP3 psu for the antminer S9?
The is no such thing as "double 15A Breaker on 120V line". When a 2-pole breaker is installed in your panel it provides 220VAC - not 120v. Incoming single phase power to a house comes in as a 220v service with a Neutral. Go across the 2 lines you get 220VAC, go across either line and Neutral you get the 120V... |
|
|
|
Anyone have ideas on why Awesome is displaying Avalons as I showed in https://bitcointalk.org/index.php?topic=676942.msg17968629#msg17968629 ? More to the point I guess is, are the miners *really* hitting those blistering speeds even if only for a brief time? I've seen spikes as high as 60TH from the trio of 721's. Since the real throughput as shown by the Avalon GUI and confirmed by CKpool stats is 18-20THs it would be nice if Awesome graphing could reflect that... |
|
|
|
1st, love Awesome miner. Now for the fun... I just added 3x of the Avalon 721 miners to my farm and after I configured the Avalon controller with CGminer switches needed for Awesome to communicate I was flabbergasted to see this: Now, the Avalon software in the controller shows a perfectly smooth 19-20THs for the trio and CKpool reports a solid tad over 19THs. Just as expected. So what's with the 40THs spikes swamping the scale factor? Are the trio of Avalon's actually hitting those speeds? Makes it damn hard to see how the s7's, 9's, and R4 are doing Any way to filter the sampling response to smooth it out? |
|
|
|
It turns out there is one outlet in the basement that is on its own unused circuit! Great luck Grin Is there perhaps an unused 220v outlet for an electric dryer as well? Seems many/most folks have gas dryers but since homes are pretty much mandated to have 220v available in the laundry area that goes unused... Mine is 220v 30A. Perfect for the 5ish kw I run at home. |
|
|
|
You are throwing your money away by solo mining. Go back to PPS mining and actually make some money.
Sorry to say but ja -- for at least over a year now, 61THs just cannot be counted on to make money when ran Solo. Of course another point to be made is um, since serious $$ is involved you should be running the gear as a business! At least in the US the cost of equipment is a deductible business expense along with electric and such. The IRS considers them pure and simple as computers/servers, don't care what they are for other than they are a part of a business. Yes all income is subject to tax but the writeoff's can more than balance than out. edit: Just for a income reference point, my current average 205-208 THs has brought in BTC0.84 on CKpool from Feb 20 to the 23rd so um, Solo = NoNo at my size. |
|
|
|
I've tried looking back but cant find the links?
Looking for a hub. Preferably from amazon canada? Or newegg.ca would be great
Search for 'USB charging hub' and you should get a lot of hits. I use one from Plugable.com via Amazon. No matter what you have to look at how the power is distributed inside them. |
|
|
|
|
Show Posts
