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

[jjj0923]

With 10 seeds the raspi runs for days without issues, However when running 20 seeds it will crash around 12 hours.
Anyone have the fix or advice for this?
Running whezzy/scripta/cgminer.

Cgminer seems to use way to many threads/resources for the PI.  CPUminer will run 20-40 on a pi easy.  I've migrated to linux boxes with extra USB host controllers and stuck the Pi's in a drawer.

cgminer on my Pi stopped working after about 6 hours.

mine is  locked up now and I'll reboot it when I get home after I get home and try applying the slub_debug=FP  and see how it goes

[miaviator]

And thanks for this: http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=55370 posted above.

Now it makes more sense

Have you tried differents HUBS? Think it matters?

-bobby

For people using 1-20 gridseeds a hub might matter.  Once you start hitting hundreds hubs become about cost.  I can use an $8 10 port hub and hook a lot of grids to a linux system.  It's not worth the effort or cost to use 1 pi per 5-10 miners.   At the current rate of scrypt reward drop it isn't really worth spending more on PI's than I would spend on old linux boxes built from spare parts.

[jjj0923]

has anyone gotten the api working with cgminer on rasberry?

TIA!

[suchmoon]

has anyone gotten the api working with cgminer on rasberry?

TIA!

How exactly do you want to use it? I have one instance talking to a monitoring application on another computer, another instance is feeding into Scripta web page. API works just like it would on any other cgminer.

[fasbit]

So I hit a USB limit in ubuntu... I have 120 gridseed 5-chip devices plugged into one linux box and getting this message: no more free ACM devices.

So does anyone know how to increase this limit on linux?

So I cant run more than 10 without getting a "zombie" error.

Did you do anything special?

[jjj0923]

has anyone gotten the api working with cgminer on rasberry?

TIA!

How exactly do you want to use it? I have one instance talking to a monitoring application on another computer, another instance is feeding into Scripta web page. API works just like it would on any other cgminer.

can I see your command line (absent your stratum and worker names of course )

[poopypants]

With my setup I am running a Raspberry Pi 11 Gridseed units and dtbartle cgminer.  I use two Rosewell 10 port hubs and was having tons of problems with my Pi restarting, dropping USB wifi, dropping ethernet.... I tried everything I could think of to fix the problems.  For my setup I think I found the culprit, which was my USB hubs.  I found that they were backfeeding power to the Pi which was causing the above issues.  For me, my solution was to cut the red 5v line in the usb cable that goes from the Pi's hub to the Rosewell USB hubs.  After I cut the 5v line the hubs would not turn on since they needed the 5v to turn on.  I used my multimeter to find a 5.2v open pad on the USB hub and took the cut red 5v line from the cable and soldered it to the hub so they would turn on.  Its now 2 days after the mod and it has been rock solid so far.  No reboots, no lost wifi signal ( i use a wifi dongle ).  Not saying that this is the problem with others units but for my setup it was the Rosewell USB hub backfeeding power.  Before I figured this out I thought that the Pi was just not capable enough to run stable and that getting a different board would solve the issue.  I bought a Cubietruck and found that I was having similar problems as with the Pi which is when I started reading about USB hubs and backfeeding power.  May be worth investigating for others.

[suchmoon]

has anyone gotten the api working with cgminer on rasberry?

TIA!

How exactly do you want to use it? I have one instance talking to a monitoring application on another computer, another instance is feeding into Scripta web page. API works just like it would on any other cgminer.

can I see your command line (absent your stratum and worker names of course )

I'm using a config file. Add "--" to config parameters to use them in command line. "api-allow" is an IP address of a remote host. If you want to use the API locally you don't need that parameter.

{
"pools" : [
        {
                "url" : "aaa",
                "user" : "bbb",
                "pass" : "ccc"
        }
]
,
"gridseed-options" : "baud=115200,freq=850",
"usb": "1:13,1:14,1:15,1:16,1:17,1:23,1:24,1:25,1:26",
"api-listen" : true,
"api-port" : "4028",
"api-allow" : "123.456.789.123",
"expiry" : "120",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "30",
"scrypt" : true,
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}

[favelle75]

Hey guys, I got two 12v power adapter bricks in my latest Gridseed order (10 units)....what on earth is the 2nd brick used for?

[usao]

Hey guys, I got two 12v power adapter bricks in my latest Gridseed order (10 units)....what on earth is the 2nd brick used for?

Probably 1 brick per 5 GSDs. That's how my kit came anyhow, 2x 12V @ 30A PSUs, 5 GSDs per PSU...

[favelle75]

Hey guys, I got two 12v power adapter bricks in my latest Gridseed order (10 units)....what on earth is the 2nd brick used for?

Probably 1 brick per 5 GSDs. That's how my kit came anyhow, 2x 12V @ 30A PSUs, 5 GSDs per PSU...

So not enough juice in 1 brick to run all 10?  I've had them running off of just the one for about 7 hours now, wondering if I'm pushing it though?

Also, I had rigged an old power supply to run my first 20 gridseeds and that works great, but these new little power bricks with the cctv DC plug splitters are sooooo slick. I see the 12V power bricks for like $2 on fleabay...is there a reason we should not be using them (scrypt-only) for say 5-8 Gridseed units?

[wolfey2014]

Hey guys, I got two 12v power adapter bricks in my latest Gridseed order (10 units)....what on earth is the 2nd brick used for?

Probably 1 brick per 5 GSDs. That's how my kit came anyhow, 2x 12V @ 30A PSUs, 5 GSDs per PSU...

So not enough juice in 1 brick to run all 10?  I've had them running off of just the one for about 7 hours now, wondering if I'm pushing it though?

Also, I had rigged an old power supply to run my first 20 gridseeds and that works great, but these new little power bricks with the cctv DC plug splitters are sooooo slick. I see the 12V power bricks for like $2 on fleabay...is there a reason we should not be using them (scrypt-only) for say 5-8 Gridseed units?

Got a link for those $2 bricks?
I'd like to see what you're talking about.
Thanks
Wolfey2014

[usao]

Hey guys, I got two 12v power adapter bricks in my latest Gridseed order (10 units)....what on earth is the 2nd brick used for?

Probably 1 brick per 5 GSDs. That's how my kit came anyhow, 2x 12V @ 30A PSUs, 5 GSDs per PSU...

So not enough juice in 1 brick to run all 10?  I've had them running off of just the one for about 7 hours now, wondering if I'm pushing it though?

Also, I had rigged an old power supply to run my first 20 gridseeds and that works great, but these new little power bricks with the cctv DC plug splitters are sooooo slick. I see the 12V power bricks for like $2 on fleabay...is there a reason we should not be using them (scrypt-only) for say 5-8 Gridseed units?

Depends on if you are running LTC or LTC+BTC. The current draw per GSD is about 1A for LTC and about 8A for dual-mode.
If you are doing LTC only, then you probably need about 10A for 5-8 GSD devices. You don't want to run the PSU at 100% (probably cant, actually). I think there is suposto be a 20% margin, so 10A per 5-8 is probably about right.

[favelle75]

Hey guys, I got two 12v power adapter bricks in my latest Gridseed order (10 units)....what on earth is the 2nd brick used for?

Probably 1 brick per 5 GSDs. That's how my kit came anyhow, 2x 12V @ 30A PSUs, 5 GSDs per PSU...

So not enough juice in 1 brick to run all 10?  I've had them running off of just the one for about 7 hours now, wondering if I'm pushing it though?

Also, I had rigged an old power supply to run my first 20 gridseeds and that works great, but these new little power bricks with the cctv DC plug splitters are sooooo slick. I see the 12V power bricks for like $2 on fleabay...is there a reason we should not be using them (scrypt-only) for say 5-8 Gridseed units?

Got a link for those $2 bricks?
I'd like to see what you're talking about.
Thanks
Wolfey2014

My bad, I was looking at the 1A and 2A ones. But the 7A, 8A, and 10A ones are pretty reasonable:

http://www.ebay.ca/itm/100-240V-to-DC-12V-5A-6A-7A-8A-Adapter-Power-Supply-US-EU-UK-For-LED-Light-5050-/261364059982?pt=US_Lighting_Parts_and_Accessories&var&hash=item3cda830f4e&_uhb=1

[favelle75]

Hey guys, I got two 12v power adapter bricks in my latest Gridseed order (10 units)....what on earth is the 2nd brick used for?

Probably 1 brick per 5 GSDs. That's how my kit came anyhow, 2x 12V @ 30A PSUs, 5 GSDs per PSU...

So not enough juice in 1 brick to run all 10?  I've had them running off of just the one for about 7 hours now, wondering if I'm pushing it though?

Also, I had rigged an old power supply to run my first 20 gridseeds and that works great, but these new little power bricks with the cctv DC plug splitters are sooooo slick. I see the 12V power bricks for like $2 on fleabay...is there a reason we should not be using them (scrypt-only) for say 5-8 Gridseed units?

Depends on if you are running LTC or LTC+BTC. The current draw per GSD is about 1A for LTC and about 8A for dual-mode.
If you are doing LTC only, then you probably need about 10A for 5-8 GSD devices. You don't want to run the PSU at 100% (probably cant, actually). I think there is suposto be a 20% margin, so 10A per 5-8 is probably about right.

Been running all 10 off of just the one 7A power brick for about 10.5 hours now. Seems pretty solid. I understood that the units only used 7 watts. So if watts = amps * volts and its a 12V power supply, then 7 = a * 12.  "a" would then equal 7/12 or about 0.59amps. Therefore all 10 Gridseeds would only by using about 6 amps, therefore a 7A power brick should easily be enough.  No? Should I splurge for the 10A bricks?

[usao]

Hey guys, I got two 12v power adapter bricks in my latest Gridseed order (10 units)....what on earth is the 2nd brick used for?

Probably 1 brick per 5 GSDs. That's how my kit came anyhow, 2x 12V @ 30A PSUs, 5 GSDs per PSU...

So not enough juice in 1 brick to run all 10?  I've had them running off of just the one for about 7 hours now, wondering if I'm pushing it though?

Also, I had rigged an old power supply to run my first 20 gridseeds and that works great, but these new little power bricks with the cctv DC plug splitters are sooooo slick. I see the 12V power bricks for like $2 on fleabay...is there a reason we should not be using them (scrypt-only) for say 5-8 Gridseed units?

Depends on if you are running LTC or LTC+BTC. The current draw per GSD is about 1A for LTC and about 8A for dual-mode.
If you are doing LTC only, then you probably need about 10A for 5-8 GSD devices. You don't want to run the PSU at 100% (probably cant, actually). I think there is suposto be a 20% margin, so 10A per 5-8 is probably about right.

Been running all 10 off of just the one 7A power brick for about 10.5 hours now. Seems pretty solid. I understood that the units only used 7 watts. So if watts = amps * volts and its a 12V power supply, then 7 = a * 12.  "a" would then equal 7/12 or about 0.59amps. Therefore all 10 Gridseeds would only by using about 6 amps, therefore a 7A power brick should easily be enough.  No? Should I splurge for the 10A bricks?

Those numbers are pretty marginal and may represent a best-case situation. Im not sure that when you power-on or restart you may get spikes higher than the 6A you are computing. Not saying it won't work, but again, I like to have 20% overhead and I also like to over estimate the usage at 1A... It just makes me feel better that my PSU won't flame-up while im not at home...

[favelle75]

So it'd be better to either run a 10A power brick, or cut the number down to 6 or so Gridseeds per 7A brick?

[suchmoon]

So it'd be better to either run a 10A power brick, or cut the number down to 6 or so Gridseeds per 7A brick?

I just measured 4 Gridseeds hanging on an 18-gauge wire from an ATX power supply. Pulling somewhere between 2.8 and 3.1 amps, not vold-modded, with fans. So yeah, 7A for ten is not good. Might be a fire hazard. 5-6 should be ok. Or 10-12A power supply for 10.

[suchmoon]

So it'd be better to either run a 10A power brick, or cut the number down to 6 or so Gridseeds per 7A brick?

I just measured 4 Gridseeds hanging on an 18-gauge wire from an ATX power supply. Pulling somewhere between 2.8 and 3.1 amps, not vold-modded, with fans. So yeah, 7A for ten is not good. Might be a fire hazard. 5-6 should be ok. Or 10-12A power supply for 10.

These are running at 900 MHz. Don't know if that makes any difference, too lazy to check if 800-850 MHz would be less "ampy"

[favelle75]

So it'd be better to either run a 10A power brick, or cut the number down to 6 or so Gridseeds per 7A brick?

I just measured 4 Gridseeds hanging on an 18-gauge wire from an ATX power supply. Pulling somewhere between 2.8 and 3.1 amps, not vold-modded, with fans. So yeah, 7A for ten is not good. Might be a fire hazard. 5-6 should be ok. Or 10-12A power supply for 10.

These are running at 900 MHz. Don't know if that makes any difference, too lazy to check if 800-850 MHz would be less "ampy"

Cool, I'll grab one of the 10A bricks for this batch. I have been running for 12 hours now, no problems, but it can't hurt to play it safe.  Cheers.