Haha, took me a while to get that. So whats the exact relationship to get Diff1 shares? LastDiff*(Accepted+HWerrors)? Thanks
Diff is dynamic on most pools so you can't work out the diff1 equivalent yourself. Leave that to cgminer and it's DiffA + DiffR. so DiffA + DiffR is total Diff1 shares right? And should I divide HWerrors/(DiffA+DiffR) to get HW error percentage? Thanks HW / (HW + DiffA + DiffR) * 100 Thanks a lot  I will sticky this. |
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In the Bitmain FAQ there's a Q about changing the frequency of AntMiner.
How safe is this as a procedure? I'm only familiar with overclocking CPUs etc. Can the chips run safely at the given top frequency (500MHz)? Is there any other drawback than grown power consumption?
The voltage regulator is a 30AMP device TPS53355. If each 8chip group draws the rated 30A @ 1.1V your power draw would be ~264W and ~310W using a 80+ Gold PSU. Well at 400MHz (204GH/s) my 80plus gold 750W PSU draws 512W from the wall (including fan power). That means I am already drawing >30A from the poor regulators and they are overloaded. As a miner I am looking at RoI first and reliability second.  |
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I saw this and I decided to do a search for "AMD asic" and found this https://bitcointalk.org/index.php?topic=136914.0It would be nice if a larger company could get into the ASIC market and make it more accessible. Wouldn't it be healthier for Bitcoin if the unmined coins were mined by a large number of people instead of a few? +1 we either need OpenASIC or pubASIC. This monopolization is not good IMO. |
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Today I bought a miner from a friend. He told me that yesterday it quit working on him.
The Avalon powers and the front two lights come on as green and orange and stay solid.
His first guess was that the tp link router was bad. He suggested I try to replace it with a raspberry pi. I took a Pi and installed Mine-peon. When I boot the PI the screen shows error: fetching interface information: device not found.
First of all, does anyone know if the approach above will work?
Second, does anyone have any better ideas of what can be wrong?
I have absolutely 0 knowledge when it comes to an avalon miner. I tried using the existing tp link module however I could not successfully open the miners options entering the ip into my address bar.
Any help would be greatly appreciated
There's a jumper u need to short just adjacent to the USB port of the controller card. |
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Haha, took me a while to get that. So whats the exact relationship to get Diff1 shares? LastDiff*(Accepted+HWerrors)? Thanks
Diff is dynamic on most pools so you can't work out the diff1 equivalent yourself. Leave that to cgminer and it's DiffA + DiffR. so DiffA + DiffR is total Diff1 shares right? And should I divide HWerrors/(DiffA+DiffR) to get HW error percentage? Thanks |
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Goto India, Mumbai or Bangalore.
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i was in the wait ing list before, do i not get one? i am ready to pay
1@4.25 / waitlist |
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Wrong. 5.5 million diff1 equivalent shares versus 13.5 thousand hardware errors. You're making a classic mistake of comparing the wrong values. His hardware error count is <.3%
Whats the exact relationship to get Diff1 shares? LastDiff*(Accepted+HWerrors)? Thanks  @ 400MHz / 204GH/s the hw error % is 63,253/(63,253 + 3,543,296 + 41,984)% = ~1.7%, which is rather fine for a system operating at its limits Kudos to Bitmain engineers. |
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Is that for real? or is it some kind of a bug ?
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Other asics company already moved to 20 nm.
By the time you found enough fools to invest, 65 nm is already outdated
I think you are mistaken, no ASIC can be at 28nm, the semiconductor titans like Intel and Samsung are not even there for real production yet. ?? Yeah Intel will never be there, they moved to 22nm  |
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and CPUs with Assembly language  |
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High end data recovery companies are very good at doing what they do, here's a presentation where some advanced techniques such as replacing the disk stack in to a new drive and replacing boards while swapping proms are described. If you are in to the thousands of dollars lost, it is something to consider. (sorry, it's part one of six) http://www.youtube.com/watch?v=Kx-D1nJcv0kI have swapped PROMs on HDD to make them work with a new board. Pretty easy if you have the right board. |
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Btw how do these hackers get into MtGox account without knowing the passwords? |
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How could both the wallets have been decrypted simultaneously. Was the password same / similar on both? Something smells fishy here.
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What is do is the following
a) set voltage to 0.9v using cgminer
b) set clock to 700
c) set memory to 1200
works a charm with 7990.
Dude, sorry, I know how to set voltage with cgminer, the thing is that it does not change it, looks like it is locked. You have to downclock to 700MHz for voltage to get reduced to 0.95V |
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Depends, Linux boxes, almost never except for a h/w upgrade,
Windows otoh once a month.
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Im looking to get at least 1TH of mining power within the next two weeks any way possible. Every 'cloud mining' option seems too shady. Every legit hardware is at least Feb. CEX is now like 75k for 1TH... Any other viable options?
Contact BITMAIN. Their antminers are good stuff and are available for 4.5BTC each. |
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Just debugged a board with 4 dead chips! a) replace chip 1 with chip2, no fish, frustration level 1 b) replace chip 1 with chip3, no fish, frustration level 10 c) replace chip 1 with chip4, no fish!, scratch head, solder external power supply, frustration level 1000+d) finally replace chip 1 with chip5, and the chip worked! 4 dead chips in a row, starting from chip1.  |
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