So I guess I have an excuse to use my underpowered hub to experiment cool my devices. I've been very lucky I haven't killed them yet like my nvidia card. At least since its not rosewill, my cheap hub doesn't need a connection to the pc to turn it on.
Sure, as long as it has its own power supply, it can happily drive your fans... I use cheap 10 port hubs with alternative power supplies (3 or 4A instead of the 1.5/2A power pack that originally came with them), but never fully populate them to allow both air flow and to be within the supply capacity. Cheers |
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After some testing (set two of them up using the 140mm fan exhaust out of the top of my computer case as active cooling (EDIT: The temp of the air flowing out of the computer and over the devices is 30°C for reference)) and tinkered with one by changing the heatsink (One now has a dedicated AMD S939 heatsink to itself, but you can fit two across so after I get some materials I'll be marrying both to the same heatsink and using usb cables).  Currently running at ext:260:1:950, I couldn't run above 210/42 (EDIT: Actually, I can't run above 42 no matter if I raise the voltage, maybe the specification for 'ext' for Thumbs is exclusive?) without getting hardware errors galore without raising the voltage (which made error rate drop to 0 up to about 240-250MHz), and going any higher than 260 starts introducing errors (about 25%+ error rate on one device, 7% on the other) Good to see cgminer spit a warning about breaching the 230MHz mark, pity it only shows up for half a second as cgminer loads (eg probably not something most people would notice) Also to note with the stock heatsink and active cooling the highest temp I was able to get was 48.1°C (and that was at 270:1:950). With the S939 heatsink it's only a little higher than that without a fan blowing on it. Will post more data after a longer run, then again after I've managed to attach the two of them to the heatsink properly (getting some proper heat pads and such as the original sticky heat pad lost some of its stickyness when I removed the stock heat sink and its currently tightened to the heatsink to keep it there.) I would really love to know if 950mv is 'acceptable' to run at as I don't want to deliberately cause any electrical damage to the devices by overclocking. Thanks for this. I thought that 'ext' required a clock external to the Thumb, but following your post, tried it here too, and it does produce nice results Using --drillbit-options ext:260:1:950 Produces 4.9/2.9 with low HW rate. https://i.imgur.com/cwjM1tL.pngAnd with a fan near by it is warm but not too hot  Cheers |
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I tried to run cooling over the eroupters and it seemed to interfere with them (maybe magnetically?) ,so I just leave them as is. I'll have to hope the boards run at a decent temp though I've got a fan ready to try and place when they get here.
Was the fan you were using a USB fan plugged into the same hub (Assuming BES, not BEB) or otherwise on the same 'power circuit' internally? Could have been the power draw affecting the BE's ability to function under load (unless the fan was introducing electrical noise into the power lines for the BE's?) I reached the same conclusion with BE's, so for all of my USB miners the fans are powered from a separate hub which is usually not connected to the PC running the hashing control software. Now running a mix of BE's, BF, RF (Red Fury) and Drillbit Thumb all on the same old laptop. The bitfury chip based miners happily share the same hub, some running on bfgminer and the Thumb on cgminer. Cheers |
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Initial results with the Thumb stock settings  slightly tweaked  Cheers |
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Good news....
Please check PM
Cheers
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Hi all,
For those still awaiting payment - please check your emails and PMs where I've asked for payment addresses.
I'm not currently involved in any more buys - but I'll review at the end of the week.
Cheers,
Julian
Some Nanofury NF1 thumbs would be nice. They are open source design using Bitfury chips, so expect several people to have batches made. +1 |
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Should I stay or should I go hmmm... I'm getting a decent reward here I think. .1 to .2 per 24 hours on a 100-130 ghs machine, is that decent? That all considering we don't get too many 11 hour rounds!
It's a metter of pool's luck. To evaluate it properly you need enough data points, that means time. For how long are you mining here? To check if it fits just use a profit calculator and compute the theoretical revenue you should have and compare to what you've earned for real. Obviously the higher the pool's hashrate the lower the variance, the lower the variance the more your theoretical profit should match your real one. I've been actively mining here at this rate for about a month. I don't want to change pools, I'd just like to be paid out daily. * sigh * My payout happened, after complaining about it a few posts ago.... I've been tracking the individual block rewards to payouts, and to Slush's credit it is 100% accurate.... I have the confidence that despite the annoying delays, the payout always happens eventually.... Cheers When were you paid out? Can you guide me a little more on tracking when my payout should happen? You can collect your stats from the Slush stats page into a spreadsheet, also your payout history and a scv output of your transactions from your wallet, do some basic calculations on these (like aligning the UTC time on Slush payouts to whatever time your wallet uses such as your local time). Then you can see how each group of confirmed block rewards adds up until your payout threshold is crossed and compare this to actual payouts. If you can 'drive' a spreadsheet, it should be easy. The only 'down side' is that you need to do this every day or so, as the stats 'vanish' after a while, and no long term history is available on the web. In my case the payout threshold is set at the min (0.01) and it usually happens close to the whole hour after the threshold is crossed, then it takes a few minutes until it appears in the wallet. Cheers |
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Should I stay or should I go hmmm... I'm getting a decent reward here I think. .1 to .2 per 24 hours on a 100-130 ghs machine, is that decent? That all considering we don't get too many 11 hour rounds!
It's a metter of pool's luck. To evaluate it properly you need enough data points, that means time. For how long are you mining here? To check if it fits just use a profit calculator and compute the theoretical revenue you should have and compare to what you've earned for real. Obviously the higher the pool's hashrate the lower the variance, the lower the variance the more your theoretical profit should match your real one. I've been actively mining here at this rate for about a month. I don't want to change pools, I'd just like to be paid out daily. * sigh * My payout happened, after complaining about it a few posts ago.... I've been tracking the individual block rewards to payouts, and to Slush's credit it is 100% accurate.... I have the confidence that despite the annoying delays, the payout always happens eventually.... Cheers |
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No problem here with this one. Maybe your miner(s) went for a rest a short time before the end of this block, in that case Slush's 'anti hopping' mechanism reduces your reward... It can also work in your favor if you join a block some time before it finishes, and you get 'the full reward' despite not spending the full duration there...
I had
20910 2013-11-22 01:58:43 11:11:58 2147483647 198336 0.00155814
You should have received something like 0.000103 if you were mining 'constantly' through this block.
Cheers
Hm. There was a storm going on not too long ago, so there could have been a power surge or something that messed with my miners. Just unlucky, I suppose. yes, that would be a logical explanation... get a UPS perhaps.... |
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Anyone been paid out today?
I'm also not being paid, despite being almost 2 times my threshold....  Edit: finally came through.... Thanks Sulsh |
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20910 2013-11-22 01:58:43 11:11:58 2147483647 13071 0.00000000 270844 25.19263543 54 confirmations left This block bugged out on me... which sucks, as it was that stupid 11 hour one. No problem here with this one. Maybe your miner(s) went for a rest a short time before the end of this block, in that case Slush's 'anti hopping' mechanism reduces your reward... It can also work in your favor if you join a block some time before it finishes, and you get 'the full reward' despite not spending the full duration there... I had 20910 2013-11-22 01:58:43 11:11:58 2147483647 198336 0.00155814 You should have received something like 0.000103 if you were mining 'constantly' through this block. You may want to compare your number of shares relatively to other blocks that you contributed to, this might give you a clue if your participation on 20910 was 'constant' or not. Cheers |
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Anyone else noticed that sometimes the LED's on the Blues just blink red on and off but sometimes they light up alternate yellow > orange > red and don't blink at all?
It doesn't make any difference to the hashing speed, just wondered why this was
I know in BGFMiner you can toggle an identify switch, which switches the miner from showing the yellow LED on or off, personally i prefer it off with a red flash for accepted work. Where can I access the toggle? In bfgminer (just tried on ver 3.6.0) type 'M' (case doesn't matter, for 'manage'), move the up/down arrows to highlight the device that you want to identify, type 'I' (or 'i'), this will toggle the LED pattern. When finished, just press the 'Enter' enter key. Cheers |
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The OP now says that no more Thumbs are available... |
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Are there any more Thumbs available?
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Congrats on shipping and being the first recipient!!!!!
Cheers
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Combined BF and RF (Red Fury) USB miners with pencil mods  Initially had R15 at 0.77K on one of them, but it got too hot to touch, so wound it down to 0.89 which seems more stable (and less HW errors) |
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Is the recently released Red Fury basically the same thing as the Blue Fury? Just different color?
I got some Red Furies today, and they are basically the 'same thing' as the Blue Fury. The main difference that I can spot is that the heatsink fins are shorter (which allows these to be placed on 'standard' hubs on adjacent USB sockets, while the Blue Fury unit that I have has longer fins that preclude that). Also the heatsink is over the full length of the PCB, and is red in color (as is the heatsink). The performance is similar and the same pencil mod applies to R15. Cheers |
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If you check your 'devices and printers' do you get the BF to shows as a com:xx device? Maybe your configuration follows the cgminer one, where these USB miners use WinUSB drivers, rather than (serial) Com port drivers?
If you don't get a Com:xx assignment for your BF, you'll need to reinstall the special BF driver provided in the early part of this thread.
Note that there is a newer version of bfgminer (3.6.0) which supports the BF's, so you may want to try that as well (it seems to handle the HW errors a bit better, and doesn't 'hide' them like the 3.2.0 does).
I've been using a batch file similar to
bfgminer.exe -S bigpic:all -o stratum+tcp://stratum.btcguild.com:3333 -u xxxxx -p xxx
Good luck
Thanks, I eventually got it working, each bit fury showed up as "Bitfury BF1 USB Miner (Com#)" but after i reinstalled the driver, it seems to be working now... Great... |
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Hello, I am quite new to mining. i got a couple block erupters working over the summer but I have a feeling the difficulties i has then i messing with me once again. I tried several versions of cgminer and bfgminer but the only version that would work without immediately crashing was cgminer 3.1.1
Now I have a couple Blue Fury's and I followed the directions as per this forum (thanks for that). Got the driver in. but when I start it, it freezes as soon as it says "started bfgminer 3.2.o
I am hoping that its just something simple i am messing up
I have tried these Bat file things:
bfgminer.exe -S "BF1:all" -o stratum+tcp://stratum.btcguild.com:3333 -u xxxxx -p xxx
bfgminer.exe -o stratum+tcp://stratum.btcguild.com:3333 -u xxxxx -p xxx -S bitfury:/dev/ttyACMO
i tried this which was suggested to someone else:
bfgminer.exe -o stratum+tcp://stratum.btcguild.com:3333 -u xxxxx -p xxx -S bitfury:/dev/ttyACMO -D -d?
I got maybe a dozen lines that said the following before once again crashing:
ft232r_scan: Found 1d6b:0001 - not a ft232r
Thanks for any help you can provide
oh and i am running on windows 7
If you check your 'devices and printers' do you get the BF to shows as a com:xx device? Maybe your configuration follows the cgminer one, where these USB miners use WinUSB drivers, rather than (serial) Com port drivers? If you don't get a Com:xx assignment for your BF, you'll need to reinstall the special BF driver provided in the early part of this thread. Note that there is a newer version of bfgminer (3.6.0) which supports the BF's, so you may want to try that as well (it seems to handle the HW errors a bit better, and doesn't 'hide' them like the 3.2.0 does). I've been using a batch file similar to bfgminer.exe -S bigpic:all -o stratum+tcp://stratum.btcguild.com:3333 -u xxxxx -p xxx Good luck |
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@Bordomboy
Are you using a powered hub?
do you have a ttyACM0 listed in your in /dev?
What command line are you starting bfgminer with?
At first I tried a hub, but couldn't find its power cord, so I plugged them directly into a USB expansion card installed on the machine. Yes, I found ttyAMC0 and ttyAMC1 in my /dev. I've been starting bfgminer with bfgminer -o stratum+tcp://us3.eclipsemc.com:3333 -u xxxxx -p xxxx -S bitfury:/dev/ttyACM0 You need to update your version of bfgminer I added theturtle1983 ppa as listed on the first page and I have the one maintained by unit3 added already, but it updated from what I was running to v. 3.3.0... I can't seem to get it to upgrade further. Perhaps 3.3.0 is called for with mint 13maya with xfce. (side note...since I ran all the updates this afternoon when I started this, the windows that open are missing the 'minimize/maximize/close' icons and I no longer have any control over their size...I also a missing 3 of the 4 desktops the settings say I have. weird) But as long as I'm getting some mining done, I think I'm going to have to leave it for the night and come back to it tomorrow. You may need to change the target distribution name, see previous post at https://bitcointalk.org/index.php?topic=319419.msg3467818#msg3467818"In "software and updates", "other software" you have to change "saucy" to "raring" in the ppa." - your distribution may be different |
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