Do I smell a challenge??     I can break out my setup, add my RPi and just run two sticks on a hub, I bet I can get 437 (or maybe 450MHz muahahaha).  What's the current record?

Yeah that's what I did.  It installs as it's own user.  I can login from anywhere now.  I just forwarded one of my domain names to my gateway, and from there to the http port on my ubuntu "server".  It has control for network miners as well.  Was a bit tricky to get it all setup adding the custom miner and all, but there's plenty of documentation out there.  Make sure you change the defualt minera admin login and minera site login credentials if you plan to expose it to the web.

I have an RPi B+ and I got the minera RPi image from the support page here and had it all setup, but it wouldn't work with my 3.0 hubs.  Before I could get my hands on a 2.0 hub to act as the middle man, my son got a gopro for christmas and I sacrificed my only microsd from the pi so he could use the camera.  I just ordered a new bigger microsd and will set it all up again when it comes in.  I already have a subdomain forwarded to the lightppd server on my laptop so I can just browse to the minera page from anywhere, I'm going to set the RPi up the same way.

I don't think the laptop is really stressed, All it does is run Ubuntu 14.04 LTS and minera. Not nearly as much as when it had windows 7.  It's got an Core i7-2640M / Radeon HD 6630M and 8 GB of Ram.  But all that is crammed into a really flat case.  I don't know how they got a fan in there but it's got a really powerful/loud when it gets real hot.  It sits on its dock all the time and that has some warmth of it's own as well that contributes to the overall temp.  The area near my desk stays relatively warm with the laptop, two desktops, and the 12 miners all going pretty much 24/7 

I split and rigged up an old USB cable to the leads on my DMM to check the hub voltage.  With no sticks I get 5.28V volts at the end near the power source and it gradually drops to 5.26V on the other end.  I set the sticks all at 740mV and cgminer at 300 MHz.  After plugging one stick in there was no drop in voltage on any of the other ports.  Same thing for sticks 2, 3, and when I plug in 4 I do see a drop form 5.26 to 5.24 on the last port.  I start to get HW errors though on any one of the sticks 1-3 when I plug in the 4th.  After that they start to reset and I end up with duplicate dead compacs in the list.  I repeated this process and stepped down the clockrate to 295, 285, 280, and still got major errors on only one device, and it's a different one (different port location and stick) each time I do the trial.  At 275MHz it works great with no errors, the limit seems to be identical to when the pot was set lower at 700MHz.  I guess my hub's power is limited to whatever it takes to run four sticks at 275MHz.  I don't want to buy any more hubs so I guess I'll stick to 275MHz  for 12 miners at ~182GH/s (was hoping to tinker and break 200 GH/s with my current setup).  Upping the voltage to 740mV did fix the issue I had with the single miner giving HW errors.

Awesome!  Thanks Sidehack,  I'll keep trying and see if I can find the magic combo.




It's an Orico 10 port 12V 3A USB 3.0, just like this one on amazon http://www.amazon.com/gp/product/B00CBEVTKI?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00

Maybe it distributes the power per-port so using only four I can't utilize all of the available power??

That's the temp of the laptop itself though, not the miner sticks.  It runs hot, always has.  I think it's a Sony thing.  The fan is barely going and it will sometimes get up near 200+ degrees and sounds like a jet engine when I'm running a bunch of stuff on it.  Had it for 3+ years though and no problems with CPU or GPU and I use to do windows 7 development on it, and anything microsoft is a resource hog.

I received my 10 sticks (in addition to the two I already had) and got them setup on Minera using the cgminer-gekko custom version.  I've been slowly increasing the clockrate/voltage but seem to be maxed out at 275 MHz with the voltage set at 700mV (drops to about 685mV when they are running).  Even cranking the voltage up to 800mV I cannot get the hashrate higher than 275MHz without significant HW errors or complete stick failure (according to cg-miner).  When I was only running two stick I had no issues running 433MHz at 800mV on the pot.  I'm no hardware guy and I don't know crap about electricity, but my current setup includes 3 sets of 4 sticks, each set of four sticks are on a 12V / 3A powered USB 3.0 hub.  They are all connected to my Sony VAIO laptop running ubuntu and Minera (that's all it does).  I'm thinking at 12V / 3A I should have about 9watts available to each of the 4 sticks, which should be plenty, but I have no idea if that's correct or not.  I can't seem to figure out how to calculate a basic formula for the consumption based on hashrate, or the other way to calculate maximum hashrate based on supply power.    COoling is not an issue I have two 80mm fans on each set of four hashers and they are warm but not hot and have been running for days.

Also,  I seem to have issues with COMPC 9, as you can see in the Screenshot link below.  I get lots of HW errors. This stick is setup identically to the other 11 sticks but it is the only one that gives trouble, even when I switch it around to different ports/hubs it's always the troublemaker. 

I also haven't considered limitations of cgminer (if any) in regards to running so many sticks on one instance of the program.  Any help / pointers / suggestions would be greatly appreciated as I am new to all this and eager to learn.

http://imgur.com/yp5oYsc

Howdy.  I just wanted to share my little experiment with the sidehack stick.  I have two and was running them at default setting with no cooling for a while then I decide to slowly ramp up the power and the cooling.  I've now got both sticks at 800mV and I've been running a day at a time at increasing clock rates.  I'm now at 425mHz on both for about 4 hours and with an 80mm fan each, probably overkill,  the sticks are hot but I can still grab the heatsinks and hold on and not get burned (my scientific temperature measurement).  I had 450 for a while but I think I didn't ramp it up slowly and I think I caused a surge so I had to go back to 425.  I'm running cgminer on ubuntu 14.04 on my xtra laptop and the sticks and fans are connected to a powered 12V 3A 10-port usb 3.0 hub.  hub is also plugged into the 3.0 port on my laptop but I don't know if it's getting any of that ports power.  These sticks are really well built and I'm having a blast tinkering with them.  I ordered 10 more last week and I can't wait to set them up.  Keep up the good work, I can't wait to see what your next project is.

http://imgur.com/a/9kvR8