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I'd love to discuss the buyback. I have had zero problems with my Prisma, hashing away at 1.43 now since receipt in mid to late November.
Is failure a matter of time? I'm thinking of just keeping it.
Alternatively, the offer either refund or a newer Prisma 2.0 unit with issues resolved - is that unit available now? I assume it is just new boards, though I do not see that.
Anyone have more intel or insight?
Dan
It was stated in the refund thread that the offer is not time-limited, i.e. you can keep hashing for now until more details are made available and you can decide what to do. I think at some point there might be a deadline established, but as of this moment if you don't have bad boards I think waiting might be the better option. https://bitcointalk.org/index.php?topic=889147.msg9806429#msg9806429Thanks suchmoon!! |
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I'd love to discuss the buyback. I have had zero problems with my Prisma, hashing away at 1.43 now since receipt in mid to late November.
Is failure a matter of time? I'm thinking of just keeping it.
Alternatively, the offer either refund or a newer Prisma 2.0 unit with issues resolved - is that unit available now? I assume it is just new boards, though I do not see that.
Anyone have more intel or insight?
Dan
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I've been in contact with Rockminer who is selling the Avalon 4 on their site. They have said that they have units for shipping, but that the shipping calculator for small orders is off. Not sure if they will try to add money or cancel order for single units, etc.
eHash.com (Canaan Creative??) still does not have a price of add to cart link.
Did anyone get a reply from manufacturer on those (price and shipping dates)?
Dan
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FYI - All my posts got deleted by Bitman. More customer ill will in my opinion.
Dan
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My Prisma has never gotten more than 350GH/s. My opinion is that they are pieces of shit and should not be purchased. I can't even return this piece of shit because my reseller (Canary) basically blamed me and told me to fuck off even though it arrived with missing parts. Be warned if you buy one of these. You will waste more of your time then they're worth and will be disappointed.
That doesn't sound like Canary. You must have really pissed him off. Did you make sure the boards were chained in incremental order? (Example: 01:17,02:18,03:19,04:20,05:21...) I understand it is crucial. I agree. I had hoped for more from Canary as well, especially since I've bought dozens if not hundreds of miners from his buys in the past. I imagine he's getting lots of complaints and just didn't want to deal with it. I've tried lots of dip switch settings. I get errors anytime more than 1 board is hooked up at a time and 1 of the boards is missing a capacitor and won't hash at all. I got the feeling the Prisma was a little rushed to market. I don't understand how they can be so problematic - I mean this isn't their first miner... it's the 4th or 5th?! Brand new Prisma user. Have four Antminer S3's. Got mine up and running in a half hour following CrazyGuy and Dogies Guide for the Tube. Part of both. Hashing at 1.43 THs for 4 days now. Dan |
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Thanks! By the way, it has (4) 6 pin cables on a single rail. I use them on my S3's. |
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On your Excel spreadsheet you show Rockminer R3 Box (4) having a total hash rate of 2.7 THs (or 675 GHs per unit), but Rockminer's site shows their hash rate to be 450 - 480 GHs each. Multiply this by 4 and you get 1,800 - 1920 GHs, or 1.8 - 1.92 THs. Do these actually Overclock up to 2.7 THs? That would be a 40% hashing power increase over stock (480 GHs).
Secondly, you show the Rockminers as being overclocked at the astounding rate of 2.7 THs, yet the other miners are shown stock. This isn't Apples to Apples.
Your work looks great, I'm just not sure it's completely accurate or unbiased.
If you click to the order page where the specs are shown, they advertise the 2700 GHs. I only bumped values if the manufacturer made a claim based upon buyers experience, or if I saw that users had reported that this was more typical. For instance, my S3+ machines work at 503 GHs, so that is how I listed it. Keep in mind this is for me. Utilize it if you desire and change it to suit your needs. Again, no need to complain about the accuracy. I am not selling anything. I am sharing it. Use it or don't. Show me a better tool you developed or found and maybe I will use that instead. Dan |
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This always happens when a company opens cloud mining. Their prices need to raise to make the cloud mining look like a better deal. Still, with the current price of BTC, the S3+ is cheaper if you consider the cost in fiat. There are much better deals currently available: Rockminer and ASICMiner Prisma are two. I use the following spreadsheet to compare apples to apples. I hesitate to share because well, people will freak out because it is not completely accurate in its forecast, but it does use an industry scaling factor, which will probably be overrun unless BTC goes up. I will probably adjust the scaling factor for myself. You need to understand excel to use it, but essentially, when I go in, I update the difficulty, day and price, unless your electricity rate matches mine, you'd also want to update electricity $/kwh. I then click on the name of each miner, and it takes me to their website where I double check the price. If the principle cost is fiat, I list that bolded, if BTC, I list that bolded. I also use a calculation for the s&h if in BTC. The last three columns are where I compare apples to apples. The notes explain much of what I was thinking when I programmed it the way I did. You'd want to update costs for PSU and other. I have my preferred units that are essentially priced here. http://www.hundredpalms.com/profitability_comparison.xlsxDan |
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Oh Man... (Face in palms). You need to do some reading. You probably didn't notice the changes in income before because the jumps in diff were a lot smaller than normal the last was 20.86%. Go here https://bitcoinwisdom.com/bitcoin/difficultyAug 19 2014 23,844,670,039 20.86% 170,686,797 GH/s Aug 08 2014 19,729,645,941 5.30% 141,230,307 GH/s Jul 25 2014 18,736,441,558 8.08% 134,120,673 GH/s Jul 12 2014 17,336,316,979 3.08% 124,098,191 GH/s Thanks for taking the time. I was thinking we had a big jump prior to the 23,844 jump. My bad (I have been reading by the way). Dan This seems to be a common problem with the latest bunch of people who bought mining hardware. Too many have no idea what they're doing, have done next to zero research, and expect to just get rich overnight.
Some of the emails, posts, PMs, and support requests I've seen along these lines have been pretty ridiculous. I seriously should make a hall of shame for such things.
Example: Some guy bought a 5Gh/s miner for like $100 not long ago and was expecting something like 100% ROI *per day* and was trying to claim that I was stealing his profits somehow...
If you are referring to me wizkid057, you are completely mistaken and completely out of line. I have been doing nothing but acquiring information for the last 2 months. Everyone must start somewhere. Thanks for taking the time to explain it lightfoot and baddw!! -Dan |
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Newby question. I've been mining with Eligius for a month now. How come it went from a 3-1/2 day payout, fairly consistently, to now a 5-1/2 day payout? Is that just the luck of the pool for now or is there another explanation. I noticed it happened around the time of this last difficulty increase.
Yes, the difficulty increase means that it takes that much longer for you to hit your threshold. Unless you build up your hashrate to keep up with the difficulty increases, your payouts will become less and less frequent, if you keep your payout threshold the same. I saw absolutely no change from any of the other difficulty increases. And since we theoretically have the same amount of miners hashing away, makes no sense that it should take now 2-1/2 days longer? |
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Newby question. I've been mining with Eligius for a month now. How come it went from a 3-1/2 day payout, fairly consistently, to now a 5-1/2 day payout? Is that just the luck of the pool for now or is there another explanation. I noticed it happened around the time of this last difficulty increase.
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Status update:
I used the latest (3rd) software update and both my miners performed poorly compared to performance with the second release. In addition, one miner that had been very stable, and while it never pulled 504 GHs on250 other than momentarily, did deliver ~480. Now with this release it would consistently drop an ASIC at 250 and 235 as well. My average at any frequency dropped to sub-430. I tried reflashing, and no change in performance. So I decided to go back to release two and now performance is back to being stable at 480-482 GHs. No ASIC are being dropped. That was about 8 hours ago, but I saw ASIC drops within the first few minute and now even the hash averages are consistent with prior performance.
I am hesitant to change back my other miner, since performance is at least consistent with the prior release.
Anyone else experiencing the same?
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Why does 250M make my miner go slower with an x in the asic status...
Same with me. I had the most stable of miners and now with the update from yesterday, I am losing a chip (x). Same frequency, nothing else changed. My other miner seems to be performing the same or a little better. |
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restart only restarts the cgminer process reboot does a complete reboot of the os
Both of your cron entries are correct for 8 am and pm, the question was for every 12 hours
Geez, difficult much? LOL I see that the question was 12 now. Didn't see your post before I posted mine, so chill. I see restart affecting my hash line (trail off in hash graph). I do not see the same thing with reboot, so I question what you are saying. This works for me. That is all. |
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So some of my miners require a restart about every 12-17 hours - they occasionally show up with the dreaded "x" but then upon a restart they are all good to go,
I'm really tired of having to restart them with the gui, is there anyone out there that can help me with an automated reboot option in the
"Scheduled Tasks
This is the system crontab in which scheduled tasks can be defined."
that i can save and autorestart the miners - once or twice a day lets say
12midnight and 12 midday?
Regards
loki.
I just added this to scheduled tasks under existing line 0 8 * * * /sbin/reboot 0 20 * * * /sbin/reboot Others suggest this 0 8,20 * * * /etc/init.d/cgminer restart Restart being safer, but reboot is quicker. I really see the drop off in my hashing graph with restart, but not with reboot. |
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Is there anyone here that can post what PSU they have and if its powering an overclocked antminer s3?
I am a dumb girl that can't figure out this whole PSU situation
I can't choose between a CX500, CX600 or CX750 per antminer.
The cost between those power supplies are quite a bit for me.
HELP!
WHAT CONFUSES ME IS THAT SOME PEOPLE SAY I SHOULD GET A PSU WITH 4 SEPERATE PCI-E connections.
SOME PEOPLE SAY THE ANTMINER S3 will overclock well on 2 SEPERATE PCI-E CONNECTIONS.
I can't choose!
I only have two AntMiner S3's. With them OC'd to 250Mhz, using only one wire bundle gets very warm, so I think over time, this is a problem, so I connected two. I am using SVGA Supernova NEX650 G1's, one per miner and had hoped to do 1-1/2 miners per PSU. A good guide is here. https://bitcointalk.org/index.php?topic=486121I used this guys video too. https://www.youtube.com/watch?v=iuBvGUT6VM8I know it is the S1, but it has similar requirements, and his information helps make a choice. Since I cannot get 1-1/2 miners per PSU, I will probably upgrade to something with more capability or downgrade to something cheaper. |
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Anyone use UPS My Choice? Do shipments from Bitmain ever show up on My Choice? Need to release signature.
I do and they did not on the shipment I just received. |
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I have been looking at the explanations about how to get the S3 antminer mining bitcoins.
Bear in mind, I haven't mined at all yet, and I also am not really familiar with electronics and messing around
with power supply and such.(it doesn't come ready to mine, but I would have to get power supply stuff myself and do some kind of paper clip electrical trick etc..)
To be honest, the explanations seem fairly daunting, with room for errors being many possibilities because
of so many steps involved in getting the S3 mining bitcoins.
What do you think? Is buying an S3 Antminer a good idea for me,
or do you think I will encounter problems in one of the many steps involved, and never actually get to the point where I am ever mining bitcoins?
Same situation with me. If you can research, you can figure it out. I just got my first two miners today (B3) and set them up. It took me a while to figure that out. As for what power supplies and how to get them running without a motherboard, go to YouTube and search. I found everything there. I am using the EVGA SuperNOVA 650G1 650W ATX12V Power Supply 120-G1-0650-XR, two of them. Right now I plan to just use one per miner. I could do one and a half though I think. With these power supplies, they have the plug to turn on the PSUs without a motherboard, but I also ordered some female plugs and pins and will make my own simple bridge. Frankly, just buying Bitcoin was as hard as setting these miners up and figuring out what all I needed. |
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Got my late batch #2 today in Toronto.
FYI listed on customs as "server" declared value was each 440$ so it was HST due of 57.23 plus UPS 10$ fee
Our Late Batch 2s should be arriving today as well. Nothing but labels for B3 so far. My B3 that were ordered on 7/11 arrived today. No less than 5 holds for customs review. Needless to say, I am excited!! |
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