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Can anyone tell me if Antminer U2 ASICs can fit next to each other in a USB hub, or if they need to leave an extra port as room for the heatsink?
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There is a thread on the MinePeon forums about cgminer 4.x.x not detecting Red and Blue Fury ASICs properly. I fell into this group since I upgraded to minepeon 0.2.4.6, and started getting LIBUSB_ERROR_TIMEOUT (-7) messages. Is this a known issue, and is there a fix for it? I'm currently using cgminer 3.12.3 which detects all my hardware, but restarts approximately once per day for unknown reasons (memory leak?)
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High error rates may be a sign of marginal power at the usb. Hell of a lot better return than most my hobbies like cars and bikes.
I'm using 4 USB miners in each 3 Amp hub. With 10% current fluctuation that's still only 2.2 Amps per hub. It could be a heat issue, but I just checked the miners' temperature in the middle of a restart cycle and they were cool to touch. I'm beginning to think it's a memory leak in cgminer. And yes, it's a fun hobby! |
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Steady As She Goes
1) Stabillity has greatly improved since I upgraded to MinePeon 0.2.4.4. Current MinePeon uptime is 19 day 6 hr 52 min 23 sec. However, cgminer seems to be restarting approximately once a day. Current Miner uptime 22 hr 46 min 59 sec. I'm going to switch to bfgminer to see if this issue improves.
2) BTCguild has been great. Highly recommended.
These two factors (platform and pool) have improved my operation significantly. Much steadier rate of income. I wish I had known this much sooner, but hopefully those who read this will benefit from it.
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Should've at least went down swinging with some Antminer S1s....
Call me crazy, but maybe this is exactly what I should do! If I were to sell my Red/Blue Fury ASICs, I would have enough for one of these. It would be my fifth hardware iteration. I know that there's little chance of making any sort of profit, but even after nine months I'm still enjoying this as a hobby and an educational exercise. The money isn't what's important to me. It's the knowledge and experience. So, who thinks I should buy an Antminer S1? If enough people are interested in seeing what happens, I'll do it! |
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I've been using MinePeon 0.2.4.2 for a while now, and I've been getting some instability. Every couple of days it needs a reboot. I'm using wired ethernet. Is there anything I can do to improve my uptime? I'm using 5x Red Fury and 3x Blue Fury in two DUB-H7 hubs.
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Now, I have signed up to btcguild. It's a large pool, and we shall see how reliable it is. BTCguild is very good and has been for a while, good features online and reliable I agree. It's been reliable and stable for me. I can recommend it. |
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Currently cointerra is sold out. I'd vote for a company that has product in stock.
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I know little about pool mining.
But I think the pool's job is just to devide the proof-of-work into many small one.
So I guess It only makes the profit comes more steady instead of more profitable.
The answer is not that simple. If you have enough hash rate to effectively mine solo, solo mining is more profitable. If you do not, you join a pool in order to reduce variance. There are pools that do not charge a fee. Those pools are more profitable, if you can stand the variance (they are typically smaller so they are exposed to more visible variance). I would mine at P2Pool if I were mining Bitcoins. No fee. All the advantages of solo mining with all the advantages of sharing the reward like traditional pools. I used p2pool with a low hashrate mining setup, and never got a payout. I would recommend against it for entry-level miners. |
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What I do not understand is how the hell you could mine a currency. Everywhere I read that people mine BTC and they invest in improving their home PC stations in order to mine BTC faster. People share that they do BTC mining but nobody explains the process of mining. Who is paying you BTC in order to perform "mining" and why are you paid to do "mining".
And please, do not compare BTC mining with gold mining for example. You cannot create gold from thin air ...yet.
You need to read up on the basics of bitcoin. In my own words, mining is the process of validating transactions, and being paid a reward when you do so. It is not "creating money from thin air". It requires time and computational power to do. You could call it "minting" if you like. The difference is that bitcoins are minted at a steady, predictable rate -- whereas fiat currency can be controlled by banks. |
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Even More Furious
Five Red Fury ASICs just arrived in the post, and are up and running. No shenanigans with MinePeon -- I just plugged in a second DUB-H7 hub and rebooted. The 2.2 to 2.6 GH/s rating is a little generous. Realistically, you will get 2.0 to 2.4 GH/s out of each device. So now I am mining with 5 Red Fury and 3 Blue Fury ASICs at 17.6GH/s (my speed prediction was spot on). Total expenditure for this latest upgrade was 0.52 BTC
The only apparent difference between Red and Blue Fury units I can see is that the red ones have a bigger heatsink. This might improve performance, but because they both show up in MinePeon as "BF1" I can't know for sure.
It's also worth mentioning that I added a plastic Pi Tin to my RPi, and stability seems to have improved!
I will update the first post.
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Pool Discussion
It's worth talking about choice of mining pool. Initially, I didn't think that choice of pool made much difference -- oh how wrong I was.
Firstly I chose eclipsemc. This is a medium-sized pool, but has been under heavy cyber-attack, and is quite unreliable. Lots of downtime.
Next I chose an Australian pool ozco.in. This is a small pool, and it can take weeks to solve a block. This, combined with a minimum payout threshold has left my earnings stranded.
Then I used p2pool, which as we have discussed in another thread, is not good at all for miners with my level of variance.
Now, I have signed up to btcguild. It's a large pool, and we shall see how reliable it is.
I know that I haven't gone into much technical detail with this post, and there are lots of theoretical scenarios that could occur. I'm just reporting on my experience with each pool I have used for the benefit of others.
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Thanks for the offers, guys!
For those of you who want BTC, did you have a price in mind?
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Against my better judgment. . .
Just spent 0.5 BTC on another 5 Red Fury ASICs. With my current 3, this should give me about 17.6 GH/s total.
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Hi all,
I'm trying to find a supplier/seller who can provide me with Blue Fury ASICs. I'd like to buy at least five. I would take new or second hand. I can do BTC or PayPal. Price negotiable.
Thanks
~LU
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Thanks, mitty, that was really helpful. Once again I get burned for not doing proper research!
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Could you please explain variance and how it affects an entry-level miner?
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After mining on p2pool for several weeks without a payout, I have gone back to eclipsemc. I need to find a reliable pool that is resistent to ddos attacks. . .
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