[GUIDE] GridSeed GC3355 5 Chip Setup/power/windows/linux/rpi by UnicornHasher

[wolfey2014]

Prolly being biased, but you guys should throw away the Rpi and switch to Lightningasic firmware, we now have an auto-overclocking feature that will overclock each individual chip (5 chips per Gridseed miner). Also the reject rate is close to 0, I've been getting 99.91% accepted running over 24 hours at Ghash.io.
BTW, Jack is making a test rig with 100 miners connected on a single controller, I will have a pic up to prove it.

Maybe....
Or....
You can just use cpuminer... You can set each miners hash rate separately, overclock them with cpuminer OC version if they are modified, and you can run each instance separately or via a batch file so you don't have to set and start each instance separately. It's a piece of cake to use, works great with 5 or 10 and up to 20 or even 30 miners easily!

www.Hashra.com is having a sale now... the new Gridseed Blade Plus - 5000KHs miner, complete with psu, controller, cables, software etc. Only $1600 for the whole smash! What a deal!
GC3355 miners for only $105 each in lots of 10 or more! The price has come way down!
I'm gonna pick me up 10 or so right now and, maybe a blade or two, too!

And, if you need your GC3355 miners modified to increase their performance up to 500KHs+ each, let me know via PM. I can take care of your mods for you if you can't do it yourself!

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[coinminer69er]

I had issues with my RPi running Raspbian freezing/crashing for almost two weeks, but have now been up and running for 3 days since following the advice in this thread- http://www.raspberrypi.org/forums/viewtopic.php?f=28&t=70437

I appreciate the help of everyone in this thread, hopefully this info can help others.

One question for you pros out there; now that it's running stable, every so hours one of my miners will stop working and instead of hashing cgminer shows it as "OFF". Simply turning the powered USB hub and then back on gets everything working again, but it's a little frustrating. It's happened a few times and is a different unit every time, so I can't see it being a problem with the hub or a cable. Any suggestions?

[Cablez]

www.Hashra.com is having a sale now... the new Gridseed Blade Plus - 5000KHs miner, complete with psu, controller, cables, software etc. Only $1600 for the whole smash! What a deal!
GC3355 miners for only $105 each in lots of 10 or more! The price has come way down!
I'm gonna pick me up 10 or so right now and, maybe a blade or two, too!

I wonder if the blades will be able to be OC'd to 8Mh/s similarly to the 5 chip miners. That would be stupendous at this price point.

Is a Rpi required to run them though, I would hope not?

[jamieb81]

www.Hashra.com is having a sale now... the new Gridseed Blade Plus - 5000KHs miner, complete with psu, controller, cables, software etc. Only $1600 for the whole smash! What a deal!
GC3355 miners for only $105 each in lots of 10 or more! The price has come way down!
I'm gonna pick me up 10 or so right now and, maybe a blade or two, too!

I wonder if the blades will be able to be OC'd to 8Mh/s similarly to the 5 chip miners. That would be stupendous at this price point.

Is a Rpi required to run them though, I would hope not?

I do not think we need a Rpi to run them. And yes would be awesome if we can voltmod the blade, but who is going to buy one and has the knowledge to find out how to mod it?? that's the question.

it's not like a cheap 120$ gridseed that anyone can get their hands on

[Cablez]

You would be surprised.  It was the same with the October Jupiters which ran for 7k a pop.  It did not stop the tinkers and EE's messing around to get more bang for the buck.  It is just a question of when.

[wolfey2014]

www.Hashra.com is having a sale now... the new Gridseed Blade Plus - 5000KHs miner, complete with psu, controller, cables, software etc. Only $1600 for the whole smash! What a deal!
GC3355 miners for only $105 each in lots of 10 or more! The price has come way down!
I'm gonna pick me up 10 or so right now and, maybe a blade or two, too!

I wonder if the blades will be able to be OC'd to 8Mh/s similarly to the 5 chip miners. That would be stupendous at this price point.

Is a Rpi required to run them though, I would hope not?

I do not think we need a Rpi to run them. And yes would be awesome if we can voltmod the blade, but who is going to buy one and has the knowledge to find out how to mod it?? that's the question.

it's not like a cheap 120$ gridseed that anyone can get their hands on

I can do it.
Someone buy a blade and send it to me to volt mod. If it can be done, I can do it.
PM me for details....

[Dabs]

I notice when I stop all instances of cpuminer (or minerd, or minerdOC) for windows, and then do the batch file to start many instances, the fans seem to hum a little bit louder at the start, as if it gets full power then turns off the BTC core (for single mode scrypt only).

Would it make sense to pause half a second between starting each instance of cpuminer?

I think I'll do that anyway. If you have 120 devices, it will take a minute for all of them to be fully running. I'm having fun with this batch file thing.

So far, I can start them, one at a time, or all at once. Stop them all at once. Set each unit its own frequency, or the same for all. Set them all to one pool, or one worker, or even a different pool and different workers.

[CartmanSPC]

Prices have dropped fast on these...down to $100 a unit. Not nearly the $14.40 price they should be sold at to compete with the Titan but getting there.

Must resist ordering...next week they may be at $80  

For kicks I ran it through the profitability calculator. Not looking good:

[Dabs]

You probably want these to mine something other than Litecoin. Depends, it's probably a better idea to just buy the other currency instead, if you can find a seller or an exchange that has the volume you need.

I'll probably buy a bunch of them if they go down to $70 per unit. (Note: I will buy from you at 70% of the lowest retail value, any working units you have.)

[wolfey2014]

I notice when I stop all instances of cpuminer (or minerd, or minerdOC) for windows, and then do the batch file to start many instances, the fans seem to hum a little bit louder at the start, as if it gets full power then turns off the BTC core (for single mode scrypt only).

Would it make sense to pause half a second between starting each instance of cpuminer?

I think I'll do that anyway. If you have 120 devices, it will take a minute for all of them to be fully running. I'm having fun with this batch file thing.

So far, I can start them, one at a time, or all at once. Stop them all at once. Set each unit its own frequency, or the same for all. Set them all to one pool, or one worker, or even a different pool and different workers.

The fans HUMM? Sounds like a possible bad psu or psu's? How many of them hum when you start cpuminer?
There should be no humming if any kind. The fans make a whooshing kind of sound pumping air but other than that, they should be silent. I mean, you can't generally hear their motor's running.
I and I am fairly sure most others don't experience this hum when starting or running our miners, not even in BTC mode.

So if your fans are making a humming sound for any period and are surging when the miners are started, one of more of your power supply/s may be the culprit. If you're using those cheap LED sign psu's that come with the miners, they can and do go bad, sometimes instantly, sometimes not so instantly .,...
If a psu goes bad, it can either just quit or it can damage if not destroy the miners it's powering.

I can modify your miners for you if you'd like to have them overclocked and making you up to 350% more in profits with ultra quiet fans too! PM me for details if interested.

And, I agree. Putting a lag between each miner starting is a good idea. Batch files can run too fast and start miners within milliseconds of each other if not tamed .

Hope this helps you avoid any catastrophic loss of any of your miners etc.

Good luck!

[HashFire]

Can anyone point me in the right direction on how to compile girnyau version of CGMiner on the Hashra image for RPI?  I am having some problems with the stock BFG mine on modded units and this is what people suggest doing.  I am a noob to this and have never compiled anything ever. 

[Dabs]

The fans HUMM? Sounds like a possible bad psu or psu's? How many of them hum when you start cpuminer?

I can modify your miners for you if you'd like to have them overclocked and making you up to 350% more in profits with ultra quiet fans too! PM me for details if interested.

Yes, the fans sound different for the first second after I start the batch file that calls cpuminer 20 times. It's like, the miners start at full power, then get the command to go low power mode immediately.

I'm using an ATX PSU. Don't think it has any problems. They all power fine. (Sure, it's not gold or platinum rated, but it still spits out 12 volts.)

I put a 200 ms delay after each "start" command in the batch file, and then I put a "taskkill" at the very start so it kills all the miners before starting. I no longer notice or hear the hum since putting in the delay between instances.

That way, I can switch pools and it takes 2 seconds. I can also now introduce a timer to restart the miners, say, once every 48 hours or something.

cpuminer has no api, and always reports zero hash, so there's no way to detect a bad unit except through the pool. I'll need to make something that just reads the output for "yays!" and if too much time has passed, then that particular instance is restarted.

As for modding the miners, I'm in the Philippines. It might become too expensive with shipping.

[wolfey2014]

The fans HUMM? Sounds like a possible bad psu or psu's? How many of them hum when you start cpuminer?

I can modify your miners for you if you'd like to have them overclocked and making you up to 350% more in profits with ultra quiet fans too! PM me for details if interested.

Yes, the fans sound different for the first second after I start the batch file that calls cpuminer 20 times. It's like, the miners start at full power, then get the command to go low power mode immediately.

I'm using an ATX PSU. Don't think it has any problems. They all power fine. (Sure, it's not gold or platinum rated, but it still spits out 12 volts.)

I put a 200 ms delay after each "start" command in the batch file, and then I put a "taskkill" at the very start so it kills all the miners before starting. I no longer notice or hear the hum since putting in the delay between instances.

That way, I can switch pools and it takes 2 seconds. I can also now introduce a timer to restart the miners, say, once every 48 hours or something.

cpuminer has no api, and always reports zero hash, so there's no way to detect a bad unit except through the pool. I'll need to make something that just reads the output for "yays!" and if too much time has passed, then that particular instance is restarted.

As for modding the miners, I'm in the Philippines. It might become too expensive with shipping.

Can you share your scrypt or batch file ? I'd like to use it too....
There is no power down etc.command for the fans on the GC3355 miners... the fans are just ON at 12V, period...IF your fans are slowing down then speeding up, your psu is being overloaded...
thx

[Dabs]

mine.bat

Code:

echo on

taskkill /fi "WindowTitle eq gs*"
ping 192.0.2.2 -n 1 -w 250 > nul

miner-start.bat stratum+tcp://poolinfo 850


REM stratum+tcp://notes on mining pools
REM stratum+tcp://notes on mining pools
REM stratum+tcp://so I can just copy and paste the line above

REM freqs 850, 863, 875, 888, 900, 913, 925, 938, 950, 963, 975

miner-start.bat

Code:

start "gs 01" minerdOC --freq=%2 --gc3355=\\.\COM3 --url=%1 --userpass=Dabs.1:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 02" minerdOC --freq=%2 --gc3355=\\.\COM4 --url=%1 --userpass=Dabs.2:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 03" minerdOC --freq=%2 --gc3355=\\.\COM5 --url=%1 --userpass=Dabs.3:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 04" minerdOC --freq=%2 --gc3355=\\.\COM7 --url=%1 --userpass=Dabs.4:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 05" minerdOC --freq=%2 --gc3355=\\.\COM8 --url=%1 --userpass=Dabs.5:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 06" minerdOC --freq=%2 --gc3355=\\.\COM9 --url=%1 --userpass=Dabs.6:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 07" minerdOC --freq=%2 --gc3355=\\.\COM10 --url=%1 --userpass=Dabs.7:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 08" minerdOC --freq=%2 --gc3355=\\.\COM11 --url=%1 --userpass=Dabs.8:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 09" minerdOC --freq=%2 --gc3355=\\.\COM12 --url=%1 --userpass=Dabs.9:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 10" minerdOC --freq=%2 --gc3355=\\.\COM13 --url=%1 --userpass=Dabs.10:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 11" minerdOC --freq=%2 --gc3355=\\.\COM14 --url=%1 --userpass=Dabs.11:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 12" minerdOC --freq=%2 --gc3355=\\.\COM15 --url=%1 --userpass=Dabs.12:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 13" minerdOC --freq=%2 --gc3355=\\.\COM16 --url=%1 --userpass=Dabs.13:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 14" minerdOC --freq=%2 --gc3355=\\.\COM17 --url=%1 --userpass=Dabs.14:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 15" minerdOC --freq=%2 --gc3355=\\.\COM18 --url=%1 --userpass=Dabs.15:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 16" minerdOC --freq=%2 --gc3355=\\.\COM19 --url=%1 --userpass=Dabs.16:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 17" minerdOC --freq=%2 --gc3355=\\.\COM20 --url=%1 --userpass=Dabs.17:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 18" minerdOC --freq=%2 --gc3355=\\.\COM21 --url=%1 --userpass=Dabs.18:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 19" minerdOC --freq=%2 --gc3355=\\.\COM22 --url=%1 --userpass=Dabs.19:x
ping 192.0.2.2 -n 1 -w 200 > nul
start "gs 20" minerdOC --freq=%2 --gc3355=\\.\COM23 --url=%1 --userpass=Dabs.20:x

The ping is the pause, in milliseconds. So I use 200 milliseconds in between miner instances, and 1/4 second when killing them all.

I will probably create a few different batch files, with the pools already hard coded, so I can just switch pools. Or later on, I will modify miner-start so I can segregate the miners into different pools.

Right now, the code above mines to one pool of your choice, into 20 different workers. Some people like to mine to one worker, I like to mine to different workers. You will have to set up your pools accordingly. I just made all my pools have the same workers and passwords.

[GSpgh]

dtbartle updated cgminer to support the blades

https://github.com/dtbartle/cgminer-gc3355
+#define GRIDSEED_MAX_CHIPS      256


can't wait to try it out

[workshop35]

Prices have dropped fast on these...down to $100 a unit. Not nearly the $14.40 price they should be sold at to compete with the Titan but getting there.

Must resist ordering...next week they may be at $80  

For kicks I ran it through the profitability calculator. Not looking good:

https://i.imgur.com/2Uqt7vc.png

Very true, which is why I'm not buying any more mining equipment. When the big script asics come online, even gridseed blades won't be doing you much good. With the difficulty increases you'll be lucky to make decent profit after ROI, if you even get there.

[miner765]

Anybody interested in buying raspberry pi + SD card loaded with hashra image? Have 3 available.

[CartmanSPC]

Prices have dropped fast on these...down to $100 a unit. Not nearly the $14.40 price they should be sold at to compete with the Titan but getting there.

Very true, which is why I'm not buying any more mining equipment. When the big script asics come online, even gridseed blades won't be doing you much good. With the difficulty increases you'll be lucky to make decent profit after ROI, if you even get there.

Yea, I kinda regret ordering when they were ~$260/each but all in all it's been fun and has kept me busy. ROI will be very tight if ever on them. I know I didn't make up the difference in the extra month or so I had them before they came down to the $95 range.

I wont be getting the G-Blade units....might get some more Infinity USB's (what gridseed calls their 5 chip miners now) if the price gets to about $60/each just to fill out my custom case    ....and maybe cost average down the ROI a bit....but I'm guessing that unless we get really lucky or do some creative altcoin mining it will be tough.

[CartmanSPC]

I stumbled upon the link below and thought of the people having problems with the Raspberry Pi:

https://github.com/luke-jr/bfgminer/commit/c993695c521b019b093c222aa810c85c1a82de4b

Q: Why isn't BFGMiner performing well or working on my Raspberry Pi?
A: Raspberry Pis have hardware defect(s) which affect USB devices to varying
degrees. Some devices will never be able to work on them, some work fine, and
some require hacks to workaround the problem. One common workaround is to add
the dwc_otg.speed=1 parameter to /boot/cmdline.txt. Note that this will slow
down the USB bus to USB 1.1 speeds, which also affects network bandwidth since
the Raspberry Pi uses a USB network interface. You may wish to consider
upgrading to a BeagleBone or UDOO controller.

[workshop35]

Prices have dropped fast on these...down to $100 a unit. Not nearly the $14.40 price they should be sold at to compete with the Titan but getting there.

Very true, which is why I'm not buying any more mining equipment. When the big script asics come online, even gridseed blades won't be doing you much good. With the difficulty increases you'll be lucky to make decent profit after ROI, if you even get there.

Yea, I kinda regret ordering when they were ~$260/each but all in all it's been fun and has kept me busy. ROI will be very tight if ever on them. I know I didn't make up the difference in the extra month or so I had them before they came down to the $95 range.

I wont be getting the G-Blade units....might get some more Infinity USB's (what gridseed calls their 5 chip miners now) if the price gets to about $60/each just to fill out my custom case    ....and maybe cost average down the ROI a bit....but I'm guessing that unless we get really lucky or do some creative altcoin mining it will be tough.

If you don't convert to USD and the price jumps you can make ROI and them some. But if you're into mining to make dollars you're doing it wrong anyway. Why would you want to trade a deflationary asset for an inflationary one...