@BRADLEYPLOOF
Yes, you are correct, sir.  I do this quiet a bit throughout the day already, adjusting clocks based on HW errors vs Hashrates, etc.  As I mentioned, I use Minera (for now) and if for some reason it auto resets (with the summer heat and all the A/C, just using the microwave will sometimes trip a breaker), then all the adjustments I made are gone.  That is why I am looking for a by ID  base setting, because for example Fury7 will sometimes be ttyUSB2 or maybe it will be ttyUSB6.  I am merely looking to tweak performance to squeeze every MH out of each device that I can.

I still very much appreciate your input.

  regards,
      geno

Ok , From your command line, I see you scan all comm ports and add all detected devices; then set all the freqs to 250 (why so low? you should get 325 easily.  just curious)  So have you tried to set individual freqs by ID number?  This is the detail I am trying to sort out before I start modding the serial nums.  I would think it would be something like     --set zus-clk Fury01:335 Fury02:328 Fury03:333   ....etc


I have been using bfgminer 4.7.0  from luke-jr; the version included with Minera (on the Raspberry Pi).  Would you say that DarkWinde's version is more stable or better supports the Fury?


 What is --zeus-cg? I haven't seen this used, or is this specific to DW's version; also, I would have thought that it would be --zus-cg to be in step with the other options.

I really appreciate the info, thanks again.

  regards,
     geno

@markBG

Thank you for the feedback. I suppose I should go ahead and give it a try sometime this week,  Do you also initialize those 4 by serial number?  Which software do you use, and what is the --set string, if you don't mind?


 I have been thinking of moving to multipool ( I have been using mupool).  but I hate the website interface - it is slow as hell and times out a lot when I try to check in to verify throughput, etc.  It also logs you off at random intervals it seems, I cannot maintain a constant connection, unlike clevermining.

Anyway, thanks again,

  regards,
    geno

I have 8 Gawminer Furies, all running on one RPi from 3 different 7 port USB hubs (two each have 4 furries and and are plugged into the central one that powers the RPi).  On boot, they are assigned ttyUSB0 through ttyUSB7

Each Fury has its own frequency preference; one can hum all day long at 345 with 2-4% errors and another gives 9% at 328.  I have given up trying to assign individual freqs, because I am certain that every reboot changes the USB number, so problem child ends up spitting 15% because it was set to 345 and golden child is held back at a mere 1.1MH/s.  So that means that after at least 3 to 4 hours, I need to ssh into the RPi and manually adjust the freqs based on individual performance.

So after all that, here is the question: Has anyone tried changing their Fury/Blizzard serial numbers from the factory 0001 using a utility such as CP21xxCustomizationUtility (which can be found here :  http://www.gmpa.it/it9xxs/?p=1133 ? 

If we can do this, Instead of using

and hoping that the correct device gets the right clock setting , for instance.  It should be something like can be used for gridseeds with cgminer (if software supports it):


I am just a little leery trying this until I know it has been done, I would certainly hate to fry one of my little guys.  I have spent quiet some time on google but I have not found anything definitive, such as 'Yes, I have changed my Fury serial number like this'.

Comments?

  regards,
    geno

So now I have it working with bfgminer with the above settings, but I find that the clock frequencies that I specify are not being used; freqs are set much lower.  I can ssh into the RPi and open the bfgminer output [ sudo screen -r ] and manually set the clock freqs, and everything works as it should.

Anyone have suggestions on what is wrong with my parameter line?  I certainly appreciate any input.

  regards,
    geno

To be quiet honest, I have not had much luck with BFGminer, either with minera or the command line.  It was a few days ago, and my notes are all a jumble right now, but I could never get the parameters quiet right.  I realize that CGminer and BFGminer are pretty much the same (one forked the other?).

Alright, I am going to give it another go.  I am now using the params


and now I'll sit back and watch it marinate for a while.  Maybe you have a suggestion to fine tune the params?

I certainly appreciate the assist.

  geno

@kevin1234a & @dockay

Bottom Line:  yes, you can have multiple devices running together on the Raspberry Pi, and you can set individual clocks.  Having said that, here is what I have found by MUCH trial and error.

I am just getting started with mining, so my answer may not be exactly on target.  However I am running 3 Gaw Fury (ies?) and a gridseed (small 5 chipper, 340KH/s) on an RPi  I am still tweaking the settings, but so far I this is my setup.

Running CGMiner (Dmax Zeus fork) and enabled super-user mode with the options

Supposedly, I should be able to set the individual Fury clocks with:

however, I am having some difficulty, as the first two devices fall back to 2MHz while the third device has the correct settings.  I have tried so many different variations on this from the command line


and found that after doing this a few times and getting no response and finally realizing that one or more devices stopped showing in /dev and not knowing when exactly this became an issue, so reboot and start over.

Eventually, I went back to the first command and just let 'em bubble and churn - ya' can't make no money if ya' ain't workin! (OK, so I don't expect to really make any money here, but a man can dream, right?)

  regards,
    geno