i think it would have been a better idea to power this off molex from the factory, powering this off one of the blades is just a poor design to begin with
My C1 should arrive tomorrow so I have to ask. The present stock design allows the C1 including pump to be run from 8 PCI-E 8 pin power? That's all 12vdc. And alternative wiring schemes have been shown to produce an equal hashrate with a reduction of power at the wall? Anyone have any numbers on this last? Or are the alternative wiring schemes for fan noise reduction? Its 8x PCI-E 6 pin, which for a ~900W miner is overkill anyway. One of the PCI-E ports get take up with the standard harness, which powers the 3x radiator fans and the pump. No other wiring arrangement will should do anything to power consumption unless you're slowing fans down. |
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i think it would have been a better idea to power this off molex from the factory, powering this off one of the blades is just a poor design to begin with
Its actually a very good idea. The old harness required you to undo the case which is annoying as hell as you also have to remove the 8 PCI-E, before replacing it all again. The V2 harness simply plugs in immediately with no problems. A molex based harness is okay for some but not okay for others as not all power supplies have molexes. No industrial PSU which quite a portion of people use only have PCI-E cables. They could add molex cables by cutting up some extenders, but then you're back to just the PCI-E harness. |
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any good recommendations on images for raspberry pi controllers to run these?
Minera, Raspian |
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Another thing i have noticed is the S4 doesnt have the pool switching tab, So u can switch from : Failover, Balance or Load Balance?
Is that something that can be fixed??
I'm sure there'll be a option to edit a config via SSH, but I don't have file locations. Someone else will be along shortly to help. |
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@el_rlee,
Messaged him to contact you. Give him a half a day or a full day to reach out to you, it is Sunday for him
Hi. What's the regular price of a controller board? Why not make them available in the webshop/resellers? Many people are left in the rain with exactly the same problem... bricked controller board. They're not for open sale as it were and more reserve stock for warranties or customers in need. Opening up the sale of spares that aren't for still in production miners risks not being able to service warranty replacements because people tend to hoard. |
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if bitmainwarranty 'IS' bitmain, why would 'bitmainwarranty' advise me to contact bitmain??
dogie seems to 'know' precisely nothing.
BitmainWarranty is the RMA / technical contact for international sales. You don't have a technical problem, you have an order dispute which requires sales / admin (BITMAIN). |
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http://tinypic.com/r/ezg1g8/8so on 4.8 if i unplugg the u3 i get this, and if i replugg and list devices it gives me- Usb List: failed to open :10 Are you using a USB hub? Is it powered? USB 2, 3 etc? |
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- Spondoolies Tech 0.05W/G mid 2015
- KnCMiner 16nm 0.07W/G early 2015
- Cointerra 16nm 5X (?) Q1 2015 (5X refers to their TerraMiner IV I guess)
- Bitfury sub-0.1J/G mid-year 2015 When i will see intel and amd have a mature desktop cpu at 14nm, then! and only then i will believe those numbers! The smaller we go the harder it is! Just a shot in the dark: under .1w/g in 2016! I think it will happen in 2015. It will likely be possible, but being possible and being the shipping clocks for a product is another thing. Maybe we will see both, maybe just one. |
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But, i can mine with my graphics card, at 500mhs. I just allowed cgminer through my firefall though just to make sure, still the same. all went into task and turned off all antivirus.
It has to be something silly im missing.
But you're not mining on your graphics card with this particular instance of cgminer. Maybe CK will have some ideas as to what's going on once he's back. |
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How are you getting the 7vdc?
The red on 12v and the black on 5v. The difference in voltage is 7v. Google it. For any kids reading, tape up your open terminals  I think it's not dangerous if I only touch the terminals with my fingers. But I better not short with something conductive. That part was overlooked in the project. I just wrap the whole thing with electrical tape? Its probably more dangerous for the supply than it is for you, but the same principles applies regardless of if its 0.1A or 10A. If the tape is decent quality then yeah you can just tape the hell out of it if you don't need access. |
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I dunno it's just a giant sea of mind numbing slush... I'll report them... They certainly are all over the forum. And dedicated all-day posters... Makes me think there may be more going on that is behind the scenes, some sort of organized manipulation perhaps? They could make a lot of BIG waves over in securities... Ugh!
I agree that the people who posts a lot of spam are very annoying, good to report them. However, the people who posts a lot of posts that contribute to the community (like me, I hope my posts are constructive, I have 600 more posts then my activity!) are fine in my opinion. There isn't anything going on behind the scenes for dedicated all-day posters, (at least in my case) we just have tons of time to waste. Real spammers are distinctive and can have even 10 times more posts than activity. Last one I reported made over 100 posts in 2 days, all in the same thread... Are you talking about Bruno in the BFL thread? Bruno is the only person I've seen that can effortlessly make hundreds of posts a day. Since he started attacking mining companies he's even more prolific. Funny thing is he claims that he has never mined a single Bitcoin! I think his profit is in the attack.  He reached escape velocity quite a while ago, it would take a full time mod to deal with his off topic posts so the only feasible solution for the mods is to ignore them. |
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Its doing what its meant to be doing, I still suspect its some form of antivirus or windows defender which is closing it as its shutting down at a point that cgminer never would do so itself. |
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To add more information to things I just now checked on it again as I saw it was not hashing on my pool and saw the LCD screen was lit up but the LAN connection was no longer showing blinking lights or any sort of light. Works fine after a reset once again...
It almost seems to me that the controller board on this unit is defective. This has been going on for over a day now.
The controller boards reeeeally rarely fail, its much more likely to be the SD card. Try reflashing the SD card with the image in post #2 (or clone your other unit). If that doesn't help then we're on to searching for the hardware cause. |
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The site is down..  ? Same here, probably temporary. Edit: Its back |
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Hello
Opentoe, I know one person with the same problem with one C1 bath 1.
We configure the miners with standard voltage 0725, the chips to 256Mhz save and aply. Wait 1 minute for save and apply and turn off the miner 1 minutes. Turn on and wait 10 minutes. In the hash rate is less of 900Gh, we continue turn off, wait 1 minute and turn on again until the hast rate is near or 1Th.
Please, is important wait 1 minutes between turn off and turn on.
Regards.
Antuam.
Really? This is actually a batch 2 unit, but anything to try I guess. The longer it runs, the lower the hashrate. So I'm thinking a buggy firmware with a memory leak that's killing it because when I power cycle it, jumps back up to 1005TH and then slowly starts dropping, real slow. I'll try this "trick" once it gets back down to 900 again. Thanks. Which pool is it on? I don't think its the solution but worth a shot. I tried Ghash and BTCGUILD. Both steadily dropped the hashing rate to 900 on two of thrm now. Regretting a little a bought 6 of them dince only two are performing at spec. I don't have a solution for this unfortunately, although the only indication is that you have 4/6 units which degrade over time and its not a widely reported problem. Can you think of anything environmental that might be contributing? Circuits maxing out / getting warmer? I'm sure you're setup is good though. |
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Simple harness mod to control voltage for the radiator fans. The radiators fans makes too much noise on 12v. I want to run the pump on 12v and choose the voltage to power the fans between 12v, 8.7v, 7v and 5v!
I have a second batch harness with a 6-pin connector. I changed wires from the connectors with 4 18awg wires. The 4 wires are connected to 12v, 5v, 3.3v and ground from an aux connector on the power supply. I added a terminal strip to choose which voltage I want to use. The best setting I found is to run the fans on 7v (12v-5v). At 7v I barely notice the noise and the temperature is only 1 or 2 degrees higher. At 5v I have to look to know if the fans are running but it is a little bit less efficient at cooling and the miner fan need to run faster to compensate.
For any kids reading, tape up your open terminals |
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Question for dogie or anyone else more electically inclined than me:
I had 2 S3+'s on a 1000W EVGA G2 80+ gold PSU, and the meter showed they were using 1050 w! I put them on a 1300w EVGA and they immediately metered at just under 800w (expected as the frequencies are bumped a bit).
I put the C1 on the same 1000W PSU and it meters at 816 and no problem.
Anyone have an idea of why the high watts with the S3's?
That..... doesn't particularly make any sense, S3s shouldn't get even near to that (like 300W-400W lower). As long as you're mining okay now is the important bit. |
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Something about this chip gives me the feeling that all mining will eventually go the way of underclocked ASICS. Its a lot less GH but its so much lower J/G.
That's typically what the second revision of a generation is - more chips and less extreme clock rates. It wouldn't make sense for the first product in a generation though as the W/GH is already sufficiently low, compared with the potential loss of GH to get down further. |
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What's the usual confirmation time on an order getting switched from unpaid to paid after a wire transfer, or does it never update? My recollection from the S1/S2 days is that the website often never gets updated with that kind of thing, but it'd be nice to make sure the transfer made it through.
Wire transfer confirmations can take a few days to show, you'll probably get a dispatch confirmation have the product dispatched at the same time. You can email info@ with your transfer details to help match it up to you. |
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I sell more to the US from the UK than I do to the UK or EU. Taxes can work both ways in terms of selling in and out of local regions.
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