Topic: GridSeed 5-chip USB miner voltage mod - page 39. (Read 156991 times)

I'm having trouble with 2 units not submitting shares after doing the 47K mod.  One of the units was submitting shares until I did a power cycle.  I managed to get it to submit some more shares after pushing the reset button on the PCB but the unit just stopped again.  I have checked and I'm getting 1.63V across the resistor, and continuity to the regulator.  Im using scripta on a pi to control the units.

I have another 10 modded units running fine.

Has anyone else had the same problem and found a fix?

That is great!  Wish I new enough to help with debugging.

sandor - just to confirm, is this for single mode operation only or both single and dual?

BOUNTY FOR CPUminer on win!

I would be very thankful if anyone could find out why some pools don't work with my cpuminer fork, I have been debugging a long time to no avail...

yes but to use on Windows as I'm not an Rpi or linux urser. And I know alot of other people interested in this for Win as well.

with above version you have to install all kind of directories into win to make it work, even less user friendly than bfg or cgm

Like this one? 

But isn't cgminer the simplest? All I did was Install Zadig and whilst one miner was plugged in, using Zadig I just pressed the button to replace the driver with the Winusb one... Only need to do it once and for one miner, now everytime i plug a miner in its detected properly. All I do now is run Cgminer Batch file. And Plug in the Hubs which have the miners already plugged onto them, thats it your now mining away

I would love if someone makes a new CPUminer. I would even pay a bounty for it!

  Now I do GPU for N-Scrypt and the other asic proof allgos, I sold most of my GPU's though and have built myself a beast Quadfire 290x , 6 Core CPU to mine cpu coins also. What else you going to mine with scrypt before Asic came? BTC was a joke with its difficulty Anywayss With GPU "since that used to be the only thing to mine scrypt properly with" people tuned there cards using miners not pools, If someone came in amongst the crowd of miners and said My 290x is doing 1500KH man my tweaks are just fkn mad!!, people would laugh, just like a group of miners who know what gridseeds are capable off then someone comes in saying I tweaked mine to 600KH, This is my point...But yeh I see where you are coming from -- If your trying to measure your own tweaks then I guess you can use a pool, but its still unstable on short term tests, you really have to sit there wait until the average starts to show just to see how your tune went - With Cgminer in a matter of 15 seconds I can see Exactly to the 0.1 of a KH how different the tune is compare to prior...But I guess for people who use Cpuminer this is all they can do basically just see the pool KH difference prior the tweak and then after..

Anyways back to my question before, does anyone know where there is a good development going on for Cgminer I found some links to downloads but not sure If I am using the latest one or not.

I just launched a pool at http://fastminer.org
Its hosted at Microsoft Azure.  Check it out. Need some hash. Starting with decent hash in the next 48 hours. Let me knowyour thoughts when you test it!

I am not talking in regards of getting paid here,Your going to get paid either way at the end of the day! Im talking about tweaking your miner and ACTUAL miner performance.. mann I am looking at the pool and sometimes it shows 2000KH more than my actual miners is showing you think I am going to believe that shit ?? LOL so no I wouldnt pay attention at the pool in regards of tuning your miners, Pool hasrate is all over the place and absolutely ridiculous to check your actual miner performance against.

I am not used to this, coming from GPU land lol Not once have I heard people checking the miner performance in a pool Yes obviously the pool is where you get paid but that does not mean that is what your miner is performing at.

How about the Mining Pool Hash rate? Although I am mingling at 1.04 the miner reports my HR/S around 450 to 550 Kh/s 

Is this an issue with my miners or a mining pool issue?

DOnt look at the pool, if you have been mining for awhile you will know dont even bother, pools are never accurate.

I only ever trust the miner, Cgminer is great for checking accepted, Rejected, WU shares, Hashrate.

It's the mod nemercry came up with https://bitcointalksearch.org/topic/m.6021433

I had an email from Gawminers two days ago for $99 gridseeds bought individually and I bought a four pack from them @ $97.50 each with free shipping so watch for specials.  Better to buy more gridseeds I think now that prices are low if DIY is not an option.

Here is Mine, Is this good? Just the one resistor replaced with a 49. at 1200 Mhz.  Am I pushing too hard> will I damage my Gridseeds?


 2            |  1.04/ 1.02/ 0.54Mh/s | A:115 R:5+0(none) HW:0/none
--------------------------------------------------------------------
 GSD 0:       | 510.6/502.5/261.7kh/s | A: 56 R:3+0(none) HW:0/none
 GSD 1:       | 510.6/500.3/283.9kh/s | A: 61 R:2+0(none) HW:0/none

I noticed that My Miners are accepting more when they are just starting. Could this be a signal telling us that I need to lower frequency? Or is this a Mining Pool issue?

I wish somebody would work on [Cgminer-Windows] properly By far when working this is the best miner out there, been proven with GPUs

Awesome!  Are there Windows binaries available?  I've attempted to build them in the past but always seem to run into some errors.

https://github.com/siklon/usb-miner/tree/master/software/cpuminer

Short summary:
* Added hashrate statistics
* Added auto per-chip frequency tuning
* Added JSON API at port 4028 -> send {"get":"stats"} to get stats for each miner/chip
* Input any frequency you want


It should work on Rpi, but I haven't tested it yet.

An update on vmod 1 dual mining.  Everything is still running, nothing quit overnight.   12 hour BTC average is higher than I expected at 10.2 GH/s on the one vmodded gridseed.  I have to wait until tonight to see what the 24 hour LTC results are.

If someone could take a look at cgminer 3.8.5 for gridseeds and add some frequency options in between 850Mhz and 900Mhz then dual mining might actually get really close to the performance of vmod 3 scrypt only.  If you have to cool your mining room then this option is not for you.  I have to heat my basement for basic comfort so some of my power costs are recouped.  In the room where my gridseeds are the heat hasn't come on in weeks with the thermostat set at 18C.  The room is a steady 19C with the 300+ watts used by the 5 gridseeds I have.  Elsewhere in the basement, with individual thermostats set at 18C all heaters are still in use showing 1 or 2 bars out of 5 possible on the thermostats.  A benefit of living in a cold climate I guess.

Any gains now will come from the software side: more frequency options are needed between 850Mhz and 900Mhz for fine tuning and, if the voltage option was built into the software, then only one solder bridge would be needed.

Edit: cgminer quit after 14 hours or so and I wasn't around to catch it.  Not unexpected with dual mode.  I was running the test gridseed by itself but as my 24 test was now pointless I just plugged that gridseed back into the hub with its brothers @ 750Mhz.  Power consumption dropped 10 watts @ 750Mhz compared to 850Mhz.

You have to use something like cgwatcher or a batch file like this: https://bitcointalksearch.org/topic/workaround-for-random-miner-crashes-in-windows-330027 to keep cgminer 3.8.5 continuously running in dual mode it seems.

It's the 49.9k.  I used 49.9k ceramic 1% axial resistors.