Topic: [GUIDE] GridSeed GC3355 5 Chip Setup/power/windows/linux/rpi by UnicornHasher - page 42. (Read 365630 times)

You don't build 800 KH/s GPU rigs, a typical rig of the past couple of months would be 6x R9 270, and it can do ~2.8 MH/s. Cost ~$1100 for GPUs plus "infrastructure".

Before R9 280X prices went crazy you could build a very nice 6 GPU 4.5 MH/s rig for $1800 + "infrastructure". Now prices seem to be coming back to normal, so that could be possible again.

There is also the GTX 750 Ti, not as cheap in $ per KH/s, but much more power efficient, somewhere in the middle between Gridseed and AMD GPU.

There is no need for a massive expensive PSU, two mid-range 600-850W PSUs will do nicely and will be cheaper. There is the ASRock BTC motherboard available for ~$70 (6 powered PCI-Express slots). Cheapest CPU and RAM will do just fine. HDD is not necessary, a $10 flash drive runs BAMT.

The point is, you can overengineer and overspend on any solution, but a well though out GPU rig does not come even close to $1 per KH/s AND is a lot more versatile than Gridseeds (think Vertcoin or Heavycoin). On the other hand, you can put a handful of Gridseeds on your desk and have 1.5 MH/s literally in minutes. Each has its benefits if you know what you're doing.

So I found the limit of gridseed devices you can run on the Pi.  That limit is 32. Not because the processor isn't fast enough, but because the serial to usb driver that it uses only supports 32.  The other devices are seen by the Pi but it does not assign them a ttyACM address and therefore cannot be used. 

Unless there is a workaround, 32 is the magic number!

HAHAHAHAHAHHAHAHAHAHHAHAHHAHAHAHAHAHAHHA!
Common sense prevails!
+ 1000000!!!!
Wolfey2014

You would already be logged in as miner if you did sudo -s entered your password and then typed exit.  The exit command would take you from sudo (root) back to user (miner)


Everything I can find says that is a warning and should not stop the process from working.  I never got that warning when I did the installs.

Try to keep going? or did the process not complete?

miaviator

Part 5A.01: Pi

you says this:

ssh back in as miner and install the pre-requisites
Code:
sudo -s
apt-get update
apt-get install -y build-essential libtool libcurl4-openssl-dev libncurses5-dev libudev-dev autoconf automake screen
exit


but then on the next step you don;t tell me if I should login as root, miner, who exactly and should I ssh in or do this from the console and WHO should I do this as?

thanks


ps: I also got this and I'm stopped dead following the directions:

this came after: apt-get install -y build-essential libtool libcurl4-openssl-dev libncurses5-dev libudev-dev autoconf automake screen

Setting up libtinfo-dev:armhf (5.9-10) ...
Setting up libncurses5-dev (5.9-10) ...
Setting up libssl-doc (1.0.1e-2+rpi1) ...
Setting up libtool (2.4.2-1.1) ...
Setting up libudev-dev (175-7.2) ...
Setting up screen (4.1.0~20120320gitdb59704-7) ...
insserv: warning: script 'mathkernel' missing LSB tags and overrides


however I read here: http://www.raspberrypi.org/phpBB3/viewtopic.php?f=66&t=68263

that doing this will solve that problem:

sudo apt-get remove wolfram-engine


I reran the : apt-get install -y build-essential libtool libcurl4-openssl-dev libncurses5-dev libudev-dev autoconf automake screen

and i ran ok - without error - but I'm still not sure how to proceed - ssh? console? and as who?

TIA

Jeff

hehe very good then. I couldn't see the hub you sent me in your link, somehow the page shows up weird in my browser.

well as long as I can put 4 in there and it works on the laptop it's fine. whill be handy too as there are only 2 ports on this thing.

1 usb2 1 usb3

lol, exact same hub as the etekcity

think I'm going for this one, even if I do not need 10 ports yet, and UK is close so that's fine

http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=181337634102&ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649#ht_2105wt_1275

how much gridseeds would I be able to plug in there?

I'm using http://www.amazon.com/gp/aw/d/B00ELPSEVW/ref=mp_s_a_1_1?qid=1395116433&sr=8-1&pi=SY200_QL40 with mine with no problems

That was very interesting.

I don't think script coins will dissapear, there will always be people making pump and dump coins.

Little question about USB hub, what's a good usb hub than can hook up to the laptop and work with the gridseeds, I've heard some hubs have issues

Don't get me wrong, I love the gridseeds, but gpu's have quite a bit more versatility than asic for scrypt. When scrypt asics become more popular, asic resistant coins will start popping up (execoin, vertcoin) so people with gpu's can still play. And if crypto coins go away at least you can resell gpu's.

That being said I'm getting rid of my gpu's because I don't want to spend thousands upgrading my electrical service and installing improved cooling just to have a decent sized farm.

Just to throw it out there... that $1 per KH/s must also include your supporting infrastructure as you mentioned... mobo, RAM, CPU/HSF, HDD/SSD/USB depending on how you are running them, PCIe extensions, the 1200-1600W PSU you need to run 4+ cards if you are doing so and all the extra connectors you need to run cards that require more than a single 6 pin PCIe power connection.

A single 800+ KH/s GPU running $500 - $750 still needs $100+ just for a basic mobo/CPU/RAM/BOOTDISK/PSU and that's cheaping out... you can easily reach +$200 for a base PC to run the GPU... and more if you want to run a multi GPU rig.

Tell me where I can get an 800 KH/s rig for $400 ($.5 per KH/s) and I will delete this post.

Hell the highest noted GPU on the scrypt litecoin comparison wiki is the Sapphire Tri-X 290X at 1002 KH/s and that's on Newegg for $750 right now and is noted running at 385W. A new setup could easily run $1000 to get that 1 MH/s running stable, whereas $1000 will buy you 3 gridseeds, a Pi, PSU, barrel jack connectors, a powered USB hub and some sort of case to put it all in, gives you a MINIMUM 1150 KH/s AND only runs a total of ~30-35W max in scrypt mode including hub and Pi. Compare the GPU rig running ~500W total to a 35W 3X gridseed/Pi and still get 15% more hashrate for 1/14th of the power cost... and probably still have funds left over. For $.10 per kWh that is ~$400 a year less in cost of power. So while you may be able to resell that GPU for $400+ next year... that only brings you to break even with the gridseed setup... before the extra 15% hashrate is included.

I have four gridseeds running with cgminer on windows 7.

I was it works with 2 or more.

I should have the shrink tubing by Friday

Running more than 2 Gridseeds on Windows 7 with cgminer causes the program to crash

Is anyone running cgminer on Windows with more than 2 gridseeds successfully?

I was going to tell you to buy some shrink tubing, but I see that someone already did on your post

For those still looking for power cables that work with gridseeds, I have adapter cables that power 1, 2, or 3 gridseeds using your PSU's 4-pin MOLEX power connector.  I test all the cables with my own gridseeds first and guarantee them to work.

Check them out here:

https://bitcointalksearch.org/topic/m.5650838

At that point it's a tough choice, it all depends on how you see the future - is scrypt going to collapse due to ASICs, are scrypt alternatives going to feed the GPU market... I think if I was starting from scratch I would probably be getting as many Gridseeds as I could afford to get the best bulk pricing. If I had a GPU farm however I wouldn't be selling off but rather looking into alternatives (adaptive N-factor etc). And getting as many Gridseeds as I could afford.

Good boy! I knew you'd come around....