New cgminer version, 3.2.2, hopefully fixes a lot of bugs with the direct USB behaviour on these devices.
Thanks! |
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try this as an alternative
exsys ex-1177hmv
Nice. Has surge protection. Do you know of anyone using them? |
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Maybe it would help to have a cross piece added to the heatsink that hangs over the sides like a telephone pole's crosspiece.
I have a couple ideas but need to implement first... |
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Hmm - after a few hours of testing with the added heatsink, I'm seeing no significant reduction in error rate.
(This was w/ a 120mm ThermalTake fan, btw)
I'm guessing we might see some benefit from replacing the large stock heatsink w one that has a greater surface area (such as the one seen on the emerald prototypes) - but again, just a guess. No doubt that friedcat did plenty of testing before finalizing this design - always fun to experiment tho.
I do think the Emerald type heat sinks protrude so much they heat up the Erupter next to it in the Hub. Hub spacings are too tight. |
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Is this one for real? How many erupters and how do you set it up??? |
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I'll take 10 of those please. I plan on testing one out later today - let you know how it goes. Stick a little peltier cooler on it and freeze it then crank up the v's! No don't..... it is a STUPID idea...... 1. Peltiers consume a MASSIVE amount of power for the cooling you get. 2. There is a significant cooling down time. 3. They fail silently. 4. You STILL need a fan.... was jk...  |
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Got a part number for the mini-heatsink?
An electronics store would be best bet and/or a massive techie computer parts web store... Ebay has some but have not found a fit but not done an extensive search. ICKSMDF8SA http://www.tme.eu/de/details/icksmdf8sa/kuhler/fischer-elektronik/is that the one? how does one put such sink on such chip? IMO-An Exact Match! |
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Got a part number for the mini-heatsink?
An electronics store would be best bet and/or a massive techie computer parts web store... Ebay has some but have not found a fit but not done an extensive search. |
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I'll take 10 of those please. I plan on testing one out later today - let you know how it goes. Stick a little peltier cooler on it and freeze it then crank up the v's! |
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Another idea. if willing to give up another slot. would be to have an artic fan at each end, but bent to each side with a push-pull setup...
Check out the mini heat sink mod attached right to the chip. It's on the mail page here on bottom under ***MODS*** That would be a an excellent test to see what happens... https://bitcointalk.org/index.php?topic=220905.msg2326671#msg2326671 |
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I'm starting to wonder IF any fan motor electrical disturbance is off setting their benefit keeping them cool....
I had the same thought. Running the fan off of a separate hub doesn't seem to help in my setup though. Not sure if fan proximity could play a role (motor EMF?). Need to establish a little testing protocol here. On the overclock issue - what software or commands would you use to change the voltage on these??
friedcat (he of ASICMiner) stated earlier in this thread that overclocking was not possible due to the chip's timing being dependent on USB fixed clock frequency & voltage. One could speculate that one would need to get the chip running off of an external variable voltage and/or clock - but one would certainly risk bricking their erupter with such an experiment  Also might want to try putting the ones with higher errors in slot of ones with lower errors and skip every other one for heat related and POWER related issues... |
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They're a bit noisy at full speed, but they draw a *lot* less power than the desk fan, so that seems like a fair trade-off to me.
I'm using the 120mm TT fan @ ~80%, surprisingly quiet - found no benefit to running @ full speed. Nice! I'll have to try turning these down a bit and see if it makes any difference to error rates. Good call. I turned them down to ~75% and am getting the same error rates with a lot less noise. I'm starting to wonder IF any fan motor electrical disturbance is off setting their benefit keeping them cool.... |
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Is it me or do these things become insanely hot? :-)
It's not about size, it's about surface.
This little HS doesn't look like much, but it increases the surface by x9!
Why friedcat made the new heatsink without surface in mind is completely beyond me, specially since the original was!
"snipped" IMO- the finned heatsinks actually increased the miner next to it (When in the Hub). Hub spacing is tight. Dig the little addition! What's the model Hub you're using? |
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How many Erupters are running?
Will be 27, currently have 10 up, and my 7970 when I'm not using it. Edit: that address was one of our payment addresses I was just using as an example. If you want to track my progress you can just remove all the variables. http://208.100.54.79/~tuneinno/payoff/"snipped" So that's .0888 GH/Hr. with the 10 up? Where do I sign up for a course!  |
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I created a little php goal tracker for my bitcoin address, it's pretty neat, but will take days to become more accurate. I made it so you can track your own bitcoin addresses with the following commands: a=address g=goal (in BTC) c=confirmations (integer 0 to 120) http://208.100.54.79/~tuneinno/payoff/?a=1MicJkizHoANu3ZsC6ubf4Zg1UpW6bGNfg&g=400&c=0It helps to create a new address, have your miners dump to that address, and after a few days you should have some reasonable statistics. I will probably improve the calculations when I get a chance, this is very simple. Night guys =] Sweet! Well Done and Thanks! How many Erupters are running? |
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all shipped
Thanks for the heads up. Or should I say Wings Up! |
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I've got an Idea.... |
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Fantastic! Thanks for making these buy's happen! |
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I'm in for two. Finally off the fence. I just have to gen up some coins here real quick at CVS and I'll be back.
Sounds good! I'm ready when you are... It appears that things have slowed down dramatically, which is sort of weird. Then again, I'm a bit hesitant with the difficulty increases looming. I think the Ebay music has stopped... |
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