Hi, I'm looking to sell 2 of my antminer s3's for either PayPal or BTC.
You cover shipping costs from Australia.
Sorry, forgot to mention. The price for each Antminer is $300 seperately.
Do you realize thats the price of a Antminer S5? Just wondering what's up with that. You're charging three time what Bitmain charge for their hardware/GH. |
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I heard that the cloud mining sites don't actually mine themselves. Are they all ponzi schemes?
Not all. The only one i can vouch for remotely is Hashnest, since its Bitmain's. But i would steer well clear of anything that has not proved itself to be trustworthy. Its not because it pays that its legit. |
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You're being asked to post the address that you sent it to, or maybe post the txid? This will provide a little more information and may work to your advantage.
oh. sorry.... did not see that. ok.. the btc address where i sent: 185rNQbi542CqvJvx4V8wvELHsEioAiCjn Its a clean address that seem to have never been used before, you sent .3 BTC? Really sound like you got scammed you can see that as soon as the money was received, it was moved somewhere else. I think your "receiver" is scamming you. The balance is here now; https://blockchain.info/address/1QFE5EyF3MWBA6Vq1v4nd2m4LPzv1KemJ9 |
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I hear lots of people saying its not worth it or its hard to break even, but what if you already have a really good PC that you can use for it?
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There is no PC, no matter how good the specs are, that will make a profit by mining bitcoins, even with free electricity. You are competing against miners with specialized mining devices that are 50,000 times more powerful and 5 times more efficient. A PC mining only on a CPU might generate $0.02 worth of BTC per year. Even using a graphics card, you will be lucky to generate $1.00 worth of BTC per year. BTW, you can buy mining devices for about the price of a PC. Or less. A sidehack stick is like 25$, consume effectively no power by itself and would net more hashing power than an office full of CPU's. There are a lots of options, but to give any suggestion we need a Budget and the electricity rate cost. |
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Did you have to open it to see that? I can't really see it just by looking inside
 i removed all of them. close device and use flashlight if you cant see. So, for the people less "in", are you saying black is bad, so don't touch Batch 2? This could be why some people report heatsink falling off and the unit burning down? yes indeed, black is strong glue then white but this has really bad thermal conductivity. white is 1,2 w/mK black is 0,4 w/mK So what happen is, since black has much weaker thermal conductivity, when the unit heat up, so does the paste, by a big margin. At which point the black glue liquify and stop holding the heatsink in place. Any idea at what temp this would happen? |
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I would assume that it is lost unless you know who owned the address and that he is willing to give it back to you.
It's not your fault. Let the guy who gave you the wrong address take the losses. Tell him to refund you. He should have figured it out himself which address is the right one and which is the false one.
I think my previous comment was ignored so i'll re-iterate in a more direct approach; It really sound like the "receiver" is just scamming OP. yes i think so too. i was scammed and now i am lost  We can still try to help, give us the requested information and maybe we can tie it to someone, but don't hold your breath, it is very easy to stay anonymous with BTC when you know what you are doing. |
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Best GH/Watt ratio is currently the Spondoolies SP50 (assuming they're actually making them), but you have to be a BIG MINE to even have a chance of buying those.
Antminer S7 is next best and pretty close.
Then the Avalon 6.
Then it's a LONG drop to the SP20 and S5 class gear.
The Lketc/BW.com B-Eleven should be in the same ballpark to a hair better vs. the S7 when it is released, probably in the next month or two.
Innosilicon has been talking some interesting numbers about their upcomming A3 chip, with an A3-based miner due out per their most recent talk about it probably in mid-Febuary timeframe.
There is no telling what KnC or BitFury have available right now, unless you're a MEGAfarm owner, they have announced some interesting numbers but nobody has hard data on actual performance or cost or availability on their stuff that is talking about it.
NOTHING in the under-200GH/s range is efficient by current standards except for Sidehack's "Compaq" stick - the next closest was probably the Rockbox but it didn't even match S5 efficiency IIRC, and S5 efficiency right now is getting to the point it's marginal for ANY profitability unless your electric is below-average on cost.
The Compaq is a little better than the S5 if you undervolt it, but it's kinda pricy per GH like any stick miner has been.
Which is clearly out of OP's range. The closest would be a underclocked undervolted S1 at 0.9W/GH for about 80-90 GHs. The thing would probably not need any sort of fan. OP really want's something that does not exist. The 50-60 GW range is small. Some had brought up S1 but I have a feeling that and PSU is out of budget he mentioned. We cannot make gear appear. So there is no way to really get OP what he want's. At this day and age ROI'ing in 50-60 GH range is pretty unrealistic. In that range there is the icky U3, there is not any other options. Going higher for cheaper is the best idea. |
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Did you have to open it to see that? I can't really see it just by looking inside
i removed all of them. close device and use flashlight if you cant see. So, for the people less "in", are you saying black is bad, so don't touch Batch 2? This could be why some people report heatsink falling off and the unit burning down? |
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I would assume that it is lost unless you know who owned the address and that he is willing to give it back to you.
It's not your fault. Let the guy who gave you the wrong address take the losses. Tell him to refund you. He should have figured it out himself which address is the right one and which is the false one.
I think my previous comment was ignored so i'll re-iterate in a more direct approach; It really sound like the "receiver" is just scamming OP. |
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what is your recommended asic for a new miner? around $60 - $65 if possible
Phils idea of S1 is not bad depending on price you get it at. Honestly your price range makes it tough. Have you heard of "lotto" mining or solo mining with little gear? Most of the miners in your price range will fall into this category. Its not enough for a S3, so the only option really is 2x S1 here. Maybe it could be done, 65$ including shipping. But OP would still need to get a PSU. The 2x S1 could do something like anywhere from 160gh with 150w~ to 400gh with 800w~~ |
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Best GH/Watt ratio is currently the Spondoolies SP50 (assuming they're actually making them), but you have to be a BIG MINE to even have a chance of buying those.
Antminer S7 is next best and pretty close.
Then the Avalon 6.
Then it's a LONG drop to the SP20 and S5 class gear.
The Lketc/BW.com B-Eleven should be in the same ballpark to a hair better vs. the S7 when it is released, probably in the next month or two.
Innosilicon has been talking some interesting numbers about their upcomming A3 chip, with an A3-based miner due out per their most recent talk about it probably in mid-Febuary timeframe.
There is no telling what KnC or BitFury have available right now, unless you're a MEGAfarm owner, they have announced some interesting numbers but nobody has hard data on actual performance or cost or availability on their stuff that is talking about it.
NOTHING in the under-200GH/s range is efficient by current standards except for Sidehack's "Compaq" stick - the next closest was probably the Rockbox but it didn't even match S5 efficiency IIRC, and S5 efficiency right now is getting to the point it's marginal for ANY profitability unless your electric is below-average on cost.
The Compaq is a little better than the S5 if you undervolt it, but it's kinda pricy per GH like any stick miner has been.
Which is clearly out of OP's range. The closest would be a underclocked undervolted S1 at 0.9W/GH for about 80-90 GHs. The thing would probably not need any sort of fan. |
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Looks like this one's kinda permanent. Even refused attempt to SSH into it...
If ssh'ing in with Putty does not work, then i guess it does not matter which browser you try to use. Did you try other passwords? Like admin, and such? Some other miners had different passwords for SSH than webgui. Maybe someone got access to it and changed the password? Dunno. Maybe you'll have to consider it bricked and look into how unbricking the S3. |
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Hi all,
I just hooked up three different IBM Bladecenter H 2880W PSU's to my brand new S7's, and boy the fans on these PSU's are incredibly loud! These PSU's have a high pitched sorta whistle sound, almost kinda like the whistle you hear on a turbo. These PSU's have a pitch more noticeable than the actual miners in the room.
My question is, is there any way to make these fans quieter at all? Or a replacement for the stock fans that are quieter? Otherwise, do I have any other options? I ideally wanted to run platinum PSU's to these miners, so if there is no solution, is there a recommended replacement that you guys suggest?
Any help is greatly appreciated, thanks.
Server PSU's are not known for being quiet. I doubt you are able to make it what you consider "quiet". If going for less noise I traditionally would send someone twords ATX vs server psu. I don't know that I have seen much as far as making them quiet. If someone can think of one please post, I could not find quickly. I think they are just loud PSU's at end of day. They are great for their price and amount of power, not for quietness. But the problem with this is the 10 PCIE cables the S7 want's. That get's most ATX psu's where they are not to good for the job. I think that EVGA 1300 with two extra PCIe extenders is OK for S7 batches 2, 4 and 6. For batch 1 could be OK, depending on your optimal mhz setting and without overclocking For batch 3, 5, 7 (and especially 7), EVGA is probably insufficient. Batch 3,5 were close to borderline w/o overclocking, but probably insufficient if overclocking to 625. batch 7 jumped to 1345w at the wall on EVGA 1300 from the getgo without any oveclock, so 1600 is probably needed, but they are expensive. Batch 6 is OK even when overclocked to 650-4.3Th at 1160W at the wall. batch 8-also probably needs Bitmain's PSU or EVGA 1600 (or 2880W IBM for two, of course). EVGA G2 1300w at 1345w at the wall is just fine, that is only 1224W and they can feed 100% of their rated load 24/7 for their whole MSRP and they are garanteed 10 years, so... Anyways TLDR; that is 94% load, no problem for a EVGA G2. |
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hi to all! i am just new here because i got a big problem: i sent btc to a wrong wallet address. actually the receiver gave me the wrong address and it was not my fault. but anyway i want to ask if there is a chance to get the btc back? or is there at least a chance to find out who the owner of the wallet is so that i can contact the owner and explain the mistake? i very much hope there is a chance because i dont want to lose them for nothing. i hope someone can help me. thanks in advance I doubt the receiver have kept an address on record mixed with his own address so that he can "give you the wrong address" he has to know who,s it is. Its not easy at all to input the wrong address, if you change numbers around, it wont work. |
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You mean fool proof? If you do it, it proves you're a fool.
Dunno, BTC keep going up, at some point its going to go back down, make it will be back down 20% which is still much higher than before. We know it is going to happen, we just don't know when. |
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That really helps. Now I know which file to edit to add that extra option. Unfortunately, it didn't help.  What does "--bet-clk 20" do? I don't think I've seen that command before. As far as you thinking that your USB adapter is broke, do you get the same results as I do when I run the following below? It's like you said, cgminer detects it, but like you, when I look in Minera, it says "No local devices found". I've used 2 different USB adapters with the same results minera@minera /var/www/minera/minera-bin $ cgminer -n [2015-12-09 22:36:51.130] USB all: found 4 devices - listing known devices .USB dev 0: Bus 1 Device 4 ID: 10c4:ea60 Manufacturer: 'Silicon Labs' Product: 'CP2102 USB to UART Bridge Controller' [2015-12-09 22:36:51.133] 1 known USB devices Does your boot log show anything useful? minera@minera /var/www/minera/minera-bin $ dmesg I get a whole bunch of this. [ 4114.924623] cp210x 1-1.2:1.0: cp210x converter detected [ 4114.929049] usb 1-1.2: cp210x converter now attached to ttyUSB0 [ 4121.220096] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0 Did you ever get Minera working? No i get 1 known usb, then everything else says 0. --bet-clk is in the readme, its the command line to set the clock speed of Tube/Prisma. Minera works fine for the Zeus i had and detect my network devices fine, too. |
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A bit steering away from the topic for your intent to selling these miners. But i have some AM Tubes that i have quite a bit of problems running off the crap BE controller. I got a UART USB converter but i can't find a version of already compiled windows cgminer/bfgminer that works.
Might i bother you as to where you got your RasPi image to run these?
Best option is Minera on a Rasp Pi. CrazyGuy created a custom image and also probably has the patched Cgminer. I believe that's what it was on dogies guide that was used.. Thanks Blazed. Yeah, can't figure it out. Got the image from his git, the cgminer does not support bet-clk, recompiling with config --enable-blockerupter solve that but still no device detected. I give up on these. |
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My VCore is showing as 0.69V
I am starting BFGminer with this switch: --set compac:clock=125
I'm not entirely sure if BFGminer is looking at that or not as 10ish GHs is not what I'd expect for 125MHz unless I am mistaken?
It would indeed be lower, but i'm not sure how BFGminer handle the gekko compact. Maybe it ramp down or something. Use cgminer as per OP. |
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I have to wonder how much of the zombie issue is U3 specific, and how much of it is USB miners in general, as I saw far-too-frequent zombies out of the Gridseed blades (not daily, but usually more than once a week per blade).
I have had 0 Zombie issue with any device whatsoever. I have 3 different miners that connect through USB right now and i do not get Zombie at all. I'm guessing the U3 were mass fabricated with a defect and now we need to use a workaround solution for it. Are you saying you had 0 zombies with U3? Or are you saying with other devices? It's pretty U3 specific other ones can get it. But it seems to be firmware that is not the greatest on U3. They can be helped with scrypts and it really does help. But out of box they are not so great. I had 0 issue with other USB miner device in general. The problem only seem to happen with U3. I'm sure there are other miners out there that go zombie. But many does not and work great. |
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