Changelog 12/17/2014- Ethics crtieron 'BFL' changed from 'BFL' to Gov to represent behaviour so serious that government / regulatory intervention is required. This does NOT mean that the previous 'BFL' rating - a mark of extreme market behaviours - wasn't proper and correct.
- Communication ratings have been normalised lower than previously.
Company changes:- Canaan Creative Communication up from 'Okay' to 'Good' (4 to 7).
- SpondooliesTech Preorders up from 'Yes' to 'Mix' (1 to 8]. *Although SpondooliesTech is currently selling out of hand, they have not yet demonstrated that their business model can support this into the next generation. On the announcement of next gen preorders, this rating will return to 'Yes'. On the announcement of next gen in hand / batch sales, this rating will increase to 'Batch' or 'No'.
- Bitmain Hardware Issues up from 'Minor' to 'No' (6 to 10).
- ASICMiner Communication down from 'Okay' to 'Bad' (4 to 1).
- ASICMiner OnTime down from 'Yes' to 'Mix' (10 to 5).
- ASICMiner Hardware Issues? Down from 'No' to 'Minor' (10 to 6). *Prisma suffered 'major' problems, but the company is offering more than fair buyback terms so customers are not out of pocket.
- OneStringMiner Communication down from 'Great' to 'Good' (10 to 7). *Was an error, already had the score of 'Good' but had the text of 'Great'.
- RockMiner Size down from 'Large' to 'Medium' (7 to 4).
- RockMiner Communication down from 'Good' to 'Bad' (7 to 1).
- XBTec Communication down from 'Good' to 'Okay' (7 to 4).
- Yiazo Communication down from 'Good' to 'Okay' (7 to 4).
- BTCGarden Communication down from 'Good' to 'Okay' (7 to 4).
- HashCoins added.
- BFL Ethics changed from 'BFL' to 'Gov' (1 to 1).
- BFL Delivered Yet? Changed from 'Few' to 'Yes' (5 to 10). *Due to the large numbers that Monarchs are / could be if it wasn't for temporary receivership delivered in.
- BFL Preorders up from 'Yes' to 'Mix' (1 to 8]. *Although BFL is currently selling out of hand, they have not yet demonstrated that their business model can support this into the next generation. On the announcement of next gen preorders, this rating will return to 'Yes'. On the announcement of next gen in hand / batch sales, this rating will increase to 'Batch' or 'No'.
- BFL Communication. *Clarification that the low rating is due to the regression to their own heavily moderated forums and to a lack of official participation in these forums - amongst other things. Additionally, the professionalism of interactions of staff on these forums is below the expected standard.
- KNCMiner Hardware Issues. *Clarification, that the low rating is due to the potentially dangerous use of high power draw far exceeding the PCI-E specification.
- KNCMiner Refund Issues up from 'Yes' to 'Some' (1 to 5).
- BlackArrow Communication down from 'Okay' to 'Bad' (4 to 1).
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[BITMAIN account]
tldr, we care, we're working on it
Sigh, you don't read do you. In that case I'm not sure what you want anyone to do here... You complained about something, it was reported to those involved as soon as I saw it, it was passed onto the relevant engineers within 2 hours of that and within that hour the engineer had looked at it and reported to the forum. If you don't believe it will get fixed or anyone cares - that's fine - but don't get angry at me for it. |
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Yet another bitmain support account
They're not 'support' accounts, they're accounts for engineers to use. |
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Yea I'm on the hunt for a PSU now. I had it hooked up with 4 PSU's yesterday..lol
On the plus side the cables were all surprisingly cool.
It is a beast hashing, I'll give them that.
Ha ha 4 psu's bet that was cluttered, I had my first tube running off 2 x CX750's and that was cluttered enough. Both mine are currently running off RM1000's, if I had to buy another psu to run one I'd go for something a little more powerful so they can be oc'd to the maximum. Finding something with 4 x twin pci-e cables to feed the 8 pci-e connections is the tricky part. I like the AX1200 but its double the price of an RM1000 and will never even come close to return the extra cost in the additional overclocked hasrate. Dogies psu guide is a handy source of info if you haven't seen it already: https://bitcointalk.org/index.php?topic=486121If you've got a PSU that can do the wattage but only has 2 PCI-E cable rails, you can use 2x molex to PCI-E adapters to make up the other 2 rails. Remember to mix and match though, so 1 PCI-E and one 2x molex PCI-E per board. |
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This is my first one...just picked it up. So far I'm not really impressed. The PSU-Miner ratio makes it even more messy than usual. No *good* stats page. I'm connecting to guild w/out any issues but it would still be nice to have other options.
Have to say for me this one is not a winner.
I haven't been up long enough to collect any usable stats but so far the hash rate is about the only positive. It's clocked @ 270 and hashing over 800 with (almost) no h/w errors.
I agree they are messy requiring 4 pci-e cables and the software is very, very basic. It would be nice to have access to some more detailed stats... Not working on most pools is my main issue. Only being able to enter a single pools details is another thing I have issue with, not being able to enter any backup pools is annoying if your first goes down... As mentioned I've got 2, I'm running them @290 and averaging about 850GH/s. I did try running @300 for 900+GH/s but it tripped out my psu a couple of times (Corsair RM1000) because it was pulling too much power. 300 would probably be ok with a more powerful psu. If it wasn't for the half decent mining speed for the money and relative quietness I would considered getting rid of these. However, they have been mining 24/7 for several weeks now pretty much faultlessly and are generating just enough btc to cover their electricity cost and enough heat to warm my office at home now its winter here in the UK so its not all bad  . The twins miss their brother  https://bitcointalk.org/index.php?topic=886325. Anything past 300 isn't viable, and 300s aren't going to happen on every tube without dropping some chips (which defeats the purpose). |
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They have a UK address you can use which will lower the cost drastically.
Apparently not for this type of problem. This is the response I got when I asked the question. Hi, you can only return the defective board to USA or China. Best Regards BITMAIN I'm not happy about that, will see if we can fix this for the future. Unfortunately that doesn't help you *now*, you'll have to ship to USA or China. Sorry. |
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If its time related then start investigating power related things. The PSU would be the first thing to look at. Try powering only the bad blade pair (as long as they're the ones that power the controller) only and see if they still drop out. Alternatively, you could just swap your PSUs over and see if the problem moves.
Sometimes it happens after five minutes, sometimes it is overnight, sometimes on boot. I'll give swapping the power supplies a try next... Swapping the power supplies had no effect. I guess I'll see what Bitmain has to say (they got back to me pretty quickly and asked for screenshots, etc), which I've just sent them. They replied:
Hi,
Please go to "Miner configuration-->Advanced settings" and increase the voltage to a higher value to try.
Would have been helpful to give me a suggestion... there doesn't seem to be much if any documentation on voltage/frequency settings and I already set it to 0760. Any ideas? That being said, I haven't had to restart it since yesterday morning. Single bump -> test. I wouldn't go more than 2 more bumps. |
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can antminer s4 use 220v. electricity?
Yes |
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Can you PM me order details and what you wanted to order please? But in the future, L1 stuff is in the altcoin section [admin will throw it there anyway].
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