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Download bfgminer 3.10.0 for Windows Scrypt mining on Gridseed 5-chip ASICs

13 Mar


Another software miner now has support for the 5-chip Gridseed GC3355 BTC/LTC ASIC devices and that is bfgminer, though you should note that there is a separate branch that supports the Gridseed hardware and the official 3.10.0 release is not compatible. The version that you can download below compiled for windows is the one with Gridseed support and you can also use it for Scrypt GPU mining, though the command line we have provided in the BAT file is only going to start bfgminer and look for Gridseed devices (remove the -d gridseed option to use GPUs too). Also note that the command line starts the miners with 850 MHz operating frequency that should result in about 360 KHS scrypt mining hashrate (60 over the stock 300 KHS) – should be stable option for good overclock performance with low to no HW errors, but your results may vary. You can get down to 800 MHz if you are getting more HW errors, or try to get up to 900 MHz if you get no HW errors to see if you can get 380 KHS stable.

This version of bfgminer shoudl work with both the earlier 5-chip Gridseed ASIC devices as well as the newer revisions, it detects and work with our miners using both the newer STM32 Virtual COM port driver as well as the older CP2102 USB to UART Bridge Controller. Note that bfgminer requires the devices to be working with their standard virtual COM ports and not to have the drivers replaced with Zadig with WinUSB like cgminer does. If you have installed the WinUSB drivers you may need to Uninstall the drivers and unplug and plug the ASIC devices so that the default driver is installed again. Alternatively you can try to install the GridSeed.inf driver you will find in the miner archive. Note that the version of bfgminer provided here is only for Scrypt (LTC) mining on the 5-chip Gridseed ASIC devices!

You can download bfgminer 3.10.0 for Scrypt mining with Gridseed 5-chip ASICs on Windows OS here…

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64 Responses to Download bfgminer 3.10.0 for Windows Scrypt mining on Gridseed 5-chip ASICs


March 14th, 2014 at 02:04

I’m an total beginner and plan on buying one Gridseed miner to play around a bit.
In your opinion, is it better to use bfgminer or cpuminer? with the gridseed?
To get familiarised to mining I played with cpuminer/minered on my laptop, and I get the basics and how to enter pools into cpuminer and making that work ( at ridiculously low hashrate but need to learn first )

I can hook one of these just straight to my laptop with adequate configuration and that’s all?

If I want to use two of these, one to mine on a multipool and an other on for example an litecoin pool, can I hook them up trough an USB hub on my laptop or does this involve other hardware?



March 14th, 2014 at 11:49

The cpuminer has very basic functionality for the Gridseed ASICs and though it works, you probably would want to stick go cgminer or bfgminer versions that support these miners. You can connect directly to your laptop or through a USB hub, doesn’t matter. For more miners though you should get a HUB and there are alternatives for standalone controllers, so a PC will not be required.

Abhishek Sehgal

March 14th, 2014 at 22:29

Does anyone know what those 3 hashrates mean/represent next to: “GSD 0: | “


March 15th, 2014 at 01:51

So what is the installation guide for a gridseed if I use bfgminer 3.10.0 ?
what drivers should I use, not use etc..


March 15th, 2014 at 12:51

jamie, bfgminer works with the standard COM to USB virtual drivers for your miner, it should automatically detect the devices when you run it with the included bat file that will tell the miner to scan for the available Gridseed devices and will run only on them. The miner will also detect GPUs if you have some connected to the system, but will not start mining on them, they will be shown as OFF.


March 15th, 2014 at 18:30

Thanks alot!
seems that this miner is the best one to get and most easy to start with, Thanks for the help Admin!


March 15th, 2014 at 19:21

jamie, yes, bfgminer seems to be the easiest to use with Gridseed ASICs for now, but there are some issues that still need to be resolved with it as well, hopefully the support will be improved further very soon.


March 15th, 2014 at 21:42

Is it possible to have DUAL mode with ?
Maybe bfgminer for LTC and cgminer?? for BTC ?


March 15th, 2014 at 22:08

Dmitry, it is not possible directly as the cgminer 3.8.5 for BTC mining on Gridseed requires the device to have the driver replaced with WinUSB and bfgminer looks for the virtual COM ports of the ASICs.


March 18th, 2014 at 13:54

I have just started using this with 40 gridseed miners. Is it normal for some of them to be showing no accepts, and 0kh in the right column? My hash rate on clever mining is about 25% lower then I would expect.


March 18th, 2014 at 14:01

mrminer, no, it is not normal, but it can happen… the Gridseed support need some tweaking apparently. Try restarting the miner software to see if they will all be working and accepting work from the pool.


March 18th, 2014 at 16:39

Hi Guys I tried the BFGminer and its running, but I don’t seem to be getting any shares, pool showing no hash rate, although both Gridminers are working and showing hashing at 320 each, 640 total, all I seem to get are these two lines repeated over time,

Stratum from pool 0 requested work update
Stratum from pool 0 detected new block

Any help greatly appreciated.


March 18th, 2014 at 16:40

Hi admin. Thanks for the quick response, I have tried restarting it a couple of times and it seems to happen to random units each time. Going to go experiment with cpuminer and see if I get the same problems. Might try the wiibox controllers too, though have heard they aren’t very stable.


March 18th, 2014 at 16:54

Chris, check if you are getting shares Accepted, Rejects and HW errors.

mrminer, you can also try with cgminer for Gridseed.


March 18th, 2014 at 20:24

Hi Admin, no not getting anything left for a good hour connected to the pool, no hash reported in the stats. It does show its hashing but no reports in the summary of rejected or accepted like you would see with a graphics card. Not to sure what to try.


March 18th, 2014 at 20:39

Try restarting the miner, also you can try with another mining pool, just in case.


March 21st, 2014 at 18:32

What exactly do those 3 hashrates mean/represent next to: “GSD 0: |” 5s avg, avg since boot, avg after deduction of rejection or something?
Also, are these figures OK?


March 21st, 2014 at 18:42

The three values for the hashrate represent the following:
– 5 second exponentially decaying average hash rate
– An all time average hash rate
– An all time average hash rate based on actual nonces found, adjusted for pool reject and stale rate


March 21st, 2014 at 20:39

Thanks for the quick reply, admin!

Are these figures OK as there is quite a different in the last reported hashrate



March 21st, 2014 at 21:19

PaasBaas, the values seem normal for what you can get running the miners clocked at 850 MHz.


March 22nd, 2014 at 00:44

Thanks! Keep up the good work.


March 22nd, 2014 at 23:15

where can I find help on running this version on a raspberry PI?


March 22nd, 2014 at 23:48

We are still waiting for our Raspberry Pi to arrive to test using the Gridseed ASICs with it.


March 23rd, 2014 at 05:25

Found this link on Gridseed and Raspberry, trying it out now


March 24th, 2014 at 11:39

My first 5-chip Gridseed, couldnt run it under cgminer nor cpuminer, but YES under bfgminer so HALLELUJAH, right?

But when it starts, it says like “running under dual mode”, …but the OP says this version of BFG is for scrypt only. I’m getting alternating red then green then red-and-green lights. Is this the best BFG is going to do, or do I need to change the command line?


March 24th, 2014 at 12:08

GolfCabalist, That is weird, can you post a screenshot of the miner and the command line you are using to start it?


March 24th, 2014 at 18:39

Thanks for your interest in my concern. The “dual” text scrolled off the screen during the start-up, so I just now restarted the miner so as to make the screen shot, and I did not see the word “dual” this time.

I do indeed have the –script argument in the command line, and my hashrate is consistent with single mode scrypt operation, so I’m comfortable that the gridseed is not wasting time trying to mine BTC.


March 26th, 2014 at 08:58

To use this with MultiMiner, just replace the bfgminer folder in the MultiMiner installation with this.

Voila, GridSeed (scrypt-only) support in MultiMiner GUI without waiting for BFGMiner 4x.


April 1st, 2014 at 02:01

“To use this with MultiMiner, just replace the bfgminer folder in the MultiMiner installation with this.
Voila, GridSeed (scrypt-only) support in MultiMiner GUI without waiting for BFGMiner 4x.””??????

How to you get multi miner to see the devices?


April 1st, 2014 at 15:53

Admin how would you go about running gridseed with gpu on bfgminer? can you give me an example. TIA


April 1st, 2014 at 16:52

SoyMilk, just remove the -d parameter from the command line and it should run on GPUs as well…


April 10th, 2014 at 05:44

Hi Admin

how do I set up failover pool in this BFGminer ?



April 10th, 2014 at 12:47

jamie, just add the new pool, user and password settings like you do with the first pool in the command line.


April 10th, 2014 at 19:23

Thanks, works now.

I was adding “failover only” in front and that did not work


April 12th, 2014 at 01:14

I noticed a strange behaviour. I can’t figure out why its happening. I have 12 Gridseeds plugged up to my laptop which I remotely access from my Nexus tablet using splashtop. The strange thing happens when I connect, my Gridseeds begin to hash faster. Each one get around 40 – 50 khs boost while I’m remotely connected. When I disconnect their hash rate lowers and returns to normal. Any idea why this is happenning? Or a way this can be replicated without having to remain remotely logged in for a speed boost?


April 12th, 2014 at 20:54

I’m having trouble adding a failover pool and tried the above suggested and it won’t work. Could someone please post an example of the .bat file with the failover pool so I could take a look at what I’m doing wrong? Thanks in advance


April 12th, 2014 at 22:25

wow really frustrating – had it working great and restarted now I’m getting “Hardware monitoring may NOT match up with devices!” – and can’t get anything running again. Any ideas?


April 12th, 2014 at 23:41

MotoBean, can you post the command line parameters you are using to start the miner?


April 13th, 2014 at 04:22

I’m running on windows 7 32 bit was having a lot of issues till I rebuilt the OS – now it’s running fine (so far) and all I need to do is set up a failover pool

I’m pretty much running the stock bat file…

bfgminer.exe --scrypt -o stratum+tcp:// -u MotoBean.1 -p x -d gridseed -S gridseed:all --set-device gridseed:clock=850



April 13th, 2014 at 11:34

MotoBean, to add a failover pool you just need to add the pool, user and password at the end of that string, so something like that:

bfgminer.exe --scrypt -o stratum+tcp:// -u MotoBean.1 -p x -d gridseed -S gridseed:all --set-device gridseed:clock=850 -o stratum+tcp:// -u yourworker.2 -p password


April 14th, 2014 at 05:15

thanks that works great! so how many HW errors a day (say on 20 GS) before it’s unacceptable? – Thanks again for the help.


April 14th, 2014 at 11:15

MotoBean, the acceptable number of HW errors per day per device is pretty much something like 0-10 or 20, if you are getting more you could try lowering the operating frequency with a step an this should help in reducing them to more acceptable level or to zero.


April 15th, 2014 at 03:26

problem is when I do that it drastically reduces my hash rate – – anyway this should be done in increments of 25? so 850, 825?


April 16th, 2014 at 03:07

tryed doing small adjustments but it’s pretty amazing how quickly I go from 7.2 Mh/s to 5.0 Mh/s. At 850 I’m getting 7.2 with probably around 40 hw errors a day. Getting high quality cables to a Platinum rated PSU seems to have helped a bit, but still getting a few more HW errors then I’d like. Still, 2 Mh/s is a pretty pig price to pay. Thinking about the voltmod…


April 24th, 2014 at 07:53

I can seem to find how to uninstall the zdiag drivers I replaced. Can anyone guide me on how to do that. They say to simply replace the gridseed.inf can anyone tell me where I will find that file and how to replace it. Running windows xp.

Rahan Ullah

April 29th, 2014 at 18:35

Can anyone help me set up a gridseed miner BFGminer but i want to use coinotron for my litecoin mining

really appreciate your help


May 2nd, 2014 at 18:05

Thanks for all the awesome work you guys do. 1K doge your way.


May 3rd, 2014 at 23:42

Admin you told SoyMilk to ” just remove the -d parameter from the command line and it should run on GPUs as well…”

This is my .bat file set up

Bfgminer -S gridseed:all --set-device gridseed:clock=850 --scrypt -o stratum+tcp:// -u **my** -p *****

How could I mine with my GPU’s and the gridseed?


May 4th, 2014 at 00:21

meowmixer, that should work with both the Gridseed ASICs and the GPUs, what problem are you having?


May 7th, 2014 at 01:18

My command line is:
Bfgminer -S gridseed:all -d GSD –set-device gridseed:clock=850 –scrypt -o stratum+tcp:…..
Gridseeds are running at 55W each (165 total) but should be running at only 8W each (24W total). Is there a command line besides that tells gridseed to run in scrypt-mode ONLY and thus hash using 8W each?

Just so you know, bfgminer runs perfectly! I appreciate your hard work. Much much better than cgminer.
I asked vendor about 55W vs 8W for scrypt only and he has not replied yet.


May 7th, 2014 at 02:58

Oops! I meant to say “… bfgminer runs much much better than cpuminer-grid…”


May 7th, 2014 at 10:37

Jackboy, it should be running at about 8-10W, bfgminer should disable the BTC cores. Have you tried with cpuminer and cgminer to see if the power usage is still 55W or the problem persists only with bfgminer?


May 7th, 2014 at 17:14

I will check Watts and let you now. Tried with cpuminer-grid and still 55W. Have NOT tried cgminer
Thanks for replying so quickly!!!


May 7th, 2014 at 17:17

Just to clarify. I am using a 500W PC ATX power supply pci-e 6-pin to 3-gridseed connector cable. Didn’t use 12V-7A power bricks since I have so many 500-750W PC power supplies laying around. However, I dont’ think that would make any difference would it?


May 7th, 2014 at 17:56

No, the power supply is of no importance here… based on its efficiency you can get slight variation in the power usage at the power socket, but nothing significant. You getting 55W of power consumption means that for some reason the BTC cores of the chips do not get disabled and they should be with all software miners except from the first initial releases coming from gridseed.


May 7th, 2014 at 23:10

Ok, my bad. Read clamp meter wrong. First reads were 12V x 4.5A = 56W. I test the voltage and it’s +12V which is good.

New amp reading is actually 0.045A. Thus 12V x .045A = .54W. Hmmm… .045A doesn’t make any sense either. Maybe (besides my reading ability) something is wrong with clamp meter. Will investigate further and update. Thanks so much for your responses. Just trying to get it right. No wonder vendor is not replying back… A big duh on my part… Repeating though, bgfminer is the best!
Thanks again.


May 8th, 2014 at 04:49

I cant get more than 15 GSD’s to work… I have 20 I’m trying to get hashing. Any ideas?

I was having same problem with CGminer.



May 8th, 2014 at 21:44

Ok, the clamp meter was faulty. I borrowed another one and discovered that the gridseeds are running at approx 0.5A at approx 12V, or approx 6W at 850 freq.

It’s always something… But thanks again for your help and comments regarding my issue.


May 8th, 2014 at 23:09

Jackboy, yes this is pretty much normal for Scrypt only mining without any modifications.


September 7th, 2014 at 18:05

Hello everyone, I inherited a few Gridseed Dual Miners from a friend, he also gave me the Gridminer controller board. So I know everyone will say this is garbage, but it’s all I got right now. It appears to use CGminer for the BTC, and CPUMiner for the LTC. However I have no idea what versions of either, and I just want to mine litecoin only. can anyone help me figure this out? Maybe a guide as to how to use this contraption or the command line.

Dee Doublewe

April 9th, 2015 at 00:35

Which version of BFG miner works with both Modded GridSeed 5 chips and Zeus X6 Lightening at the same time? I’d rather run both from one GUI if possible.
I am currently running BFG4.2.1 for Zeus and CPUMiner for the overclocked GridSeed farm.
Both seem to be running stably via the same USB hub.
Thanks for your help!


June 21st, 2016 at 12:23

hi, i am beginner in mining and i want to start swiscoin mining how can i start using bfgminer 3.10.0
please help me. and i have intel core i5, NVIDIA Gforce 2GB card.


June 21st, 2016 at 13:06

If it is a Scrypt-based coin, then GPU mining is pointless already since there are much more powerful specialized ASIC miners for quite some time already.


August 2nd, 2016 at 22:40

admin, any way you could give an example of a command line for BFGminer sol-mining for Litecoin. Curently running in a pool,, wanna go solo for a bit. Not sure what to change to make this happen.

Thank you for your time.

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