Topic: [GUIDE] GridSeed GC3355 5 Chip Setup/power/windows/linux/rpi by UnicornHasher - page 23. (Read 365630 times)

man that's +12 euro for a silent fan 
that's some serious mining time, better to have a loud fan and make more $$

howto build a silent gridseed gc3355 with stock fan
// Wie mache ich den Lüfter unhörbar leise? - Lüftersteuerung

7 EUR - http://www.ebay.de/itm/321142733128 // liefert am selben Tag aus Deuschland







6 Volt at room temperature
stays silent at all power levels ( < 60W )
12 Volt supposed at 40°C

That's not unusual for Gridseeds. You need to watch submitted shares more so than HW.

But HW are low and not on every devices. How come some devices are no HW at all and my pool rate still indicate 256Kh/s ?

Try 850 MHz, I guess your hashrate gets eaten up by HW errors. Or did you do some hardware overclocking?

Hi guys,

I have an issue with my setup. I followed Scripta's page instructions and it seems that eveything is working correctly:

http://img11.hostingpics.net/pics/738489Snap20140330at154102.png

Scripta :

http://img11.hostingpics.net/pics/289583Snap20140330at154201.png

I am hashing at 4.2 Mh/s approximatly but my pool account, indicate me a very low hashrate (arround 250 Kh/s):

http://img11.hostingpics.net/pics/915375Snap20140330at155237.png

And here all the stats:

http://img11.hostingpics.net/pics/754823Snap20140330at155434.png

I tried different share diff (512, 64) but nothing changed.

Do anyone knows what's going on here ?

Thanks guys !  

Talking about splitters,

will this be a good splitter ?  :

http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=310736642237&var=610209248269&ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649

Up to 4 rows of 7 in the back with room for a PSU and a full ATX computer in the front or another 5x5 grid in the front: Supports up to 53 gridseeds (17 per U of rackspace or 689 per Rack)

3U form Factor $209 - 845 Watt PSU $8 - 5v 5Amp step down transformer for the USB HUBS $20 - 10-12 port usb HUBS $9 each - Fans included in the case.

Nice summary suchmoon. I have experienced similar results myself with 20 miners and cgminer.

I ditched cpuminer right away. It's just not practical for my needs.

I ditched Windows after only about two hours. The USB support was too glitchy and I did not want to be resetting USB ports when miners dropped off. Windows would have been nice since it would allow me to use cgwatcher but stability if more important.

I ditched the Pi after about six hours...really wanted that thing to work and it mostly did but not as well as Linux on a spare Thinkpad I have. I use Ubuntu server myself since I have no need for a UI.

I have a couple wiibox's that came with my miners that I haven't even touched yet since Linux/cgminer on the Thinkpad is working so well.

Also, I'm in the process of making my own case (link). Hope to have it finished tomorrow. Today was burned having to make a couple of trips to the hardware store and Starbucks  
Eventually plan to use the second Corsair AX1200i from my GPU rig to power the Gridseed miners. May just cut the modular PCIe cables (since I have extras) and use barrel plug adaptors to a 5 way splitter for Scrypt only mining. Might be able to push 120 miners on it 96 is more realistic though.

Pi / Windows / Linux roundup

I did some experiments over the weekend trying to run 50+ miners in the most manageable and efficient way. By efficient I mean easy setup, preferably using cheapest parts or spares from my drawer, and to be able to fit into a space previously occupied by 4 GPU rigs. One somewhat unusual requirement I have is that I need to split the farm to mine into multiple pools. So here are the results. It's all obviously biased and I'm in no way pretending to offer the best solution for everyone, but I hope it might helpful to someone who encounters similar issues.

Gridseed controller (Wiibox)

I have a couple of those. Tried one, couldn't get it to work. I could connect to the web interface, but it wouldn't recognize the miners. Gave up after a couple of hours and moved onto Raspberry Pi (see below).

LightningASIC controller (TP-Link)

This one works to some extent. Unfortunately it does not allow root access and configuration options are rather limited. This refers to the original version. I understand there is a software update, but I have not tried it. The main problem with this controller was that it would reset all miners if one of them didn't submit shares within a certain period of time (10 minutes I think). This didn't work well with high difficulty pools. It also doesn't work well with more than 10 miners, becomes very slow and unresponsive. Replaced it with Linux (see below).

Raspberry Pi

This was the first controller that worked really well for me. I still have 9 miners connected to it and will probably add more. I'm using Scripta image with Andareed's precompiled cgminer. I have hacked it to run two instances of cgminer. Main problems with the Pi:

1) it can't handle more than 2 levels of USB hubs, which essentially limits you to one hub on each port, or a lot of daisy-chained 7-port hubs. Large hubs are expensive, for example 24-port hub costs as much as the Pi itself, and a 49-port hub is ~$150, and daisy-chaining 7-port hubs is messy. It is also sensitive to the quality of the hubs, some have reported issues with power backfeed and other problems. Luckily I have not experienced such issues.

2) it does not work well (slows down and loses hashrate) with more than 2 instances of cgminer, which is a requirement for me to be able to mine into multiple pools.

In my view, the Pi is a very good option for up to ~25 miners and possibly a lot more, if you can splurge on large hubs.

Windows 7

I had high hopes for this. I built a cheap mini ITX PC. This can be done for under $150 using the cheapest Pentium CPU, but I put in a Xeon as I was also planning to use the PC to run a webserver to monitor other mining farms. Unfortunately I had nothing but problems with Gridseeds connected to Windows:

1) Could not get cgminer to work properly. I installed the Zadig driver but cgminer would not see any miners. Hotplugging seemed to help, but not always. Besides that would be unacceptable anyway, I need this to work without any manual intervention.

2) bfgminer works without Zadig. It recognized first few miners without issues. Problems started when I ran three instances - it would not submit shares for some of the miners, without any obvious reason as to why. I wasted a lot of time thinking it is a hardware issue, replaced hubs, cables, miners, nothing helped.

3) cpuminer also works without Zadig. It is however not scalable to the level that I need as it can connect to only one miner at a time. I would need to run 50 cpuminer windows and that would be a substantial maintenance problem.

At the end of the day - quite literally, having mucked around with Windows for 8 hours straight - I decided to throw it away and install Linux.

Xubuntu

I chose Xubuntu as I'm familiar with Debian package management and not a big fan of the mainstream Ubuntu UI. However I think any modern Linux system would work fine for this purpose. I downloaded Xubuntu 13.10 ISO, used Universal USB Installer to create a bootable flash drive, and installed it into a 60GB SSD. It boots in about 5 seconds, which is quite important for a mining rig.

There were no issues whatsoever with Gridseeds connected to Linux. I compiled both cgminer and bfgminer from source code. Having done this recently with a couple of other cgminer clones it was easy, but even for first-time users it's not a complicated process. Essentially it's "git clone", "configure" (some options may be needed here), and "make", as outlined in the OP.

cgminer recognized all 52 miners right away. I'm using two 13-port hubs, and three 10-port hubs. My cheap mini ITX motherboard has only 4 USB ports at the back, so one 10-port hub is daisy-chained to another, as I didn't want to plug it in the front of the case. I'm currently running 5 cgminer instances, roughly one per hub. The only problem so far is that adding more hubs/miners renumbers USB devices, so I will need to update all cgminer config files if I decide to expand the farm.

I did not try bfgminer on Linux, because cgminer works well enough, and I had already wasted too much time, so I was just happy it's over.

Layout

I have ordered a case for Gridseeds from one of the sellers here in the forums, unfortunately they are very slow to ship. So for now I put them into four ~$5 file crates. Power is supplied by an old 450W ATX PSU, which is a bit too weak (pulls 430W at the wall), so a 750W PSU is coming next week. Cable management is a challenge and I haven't done it as well as I wanted to, but hopefully the case will come soon and will help with that.

Conclusion

Again, this is just my opinion and might not necessarily be the case for everyone else:

For a handful of miners Windows is great, since many of us already have it so no extra investment is needed. bfgminer (or cpuminer if you are adventurous) works well. I can't recommend cgminer/zadig.

Raspberry is great if you can fit within its limitations regarding hubs. Low power consumption, ready-to-use images available (Scripta, Hashra, etc), great user community.

Linux on a PC seems to be the most versatile option. I'm quite confident it can be pushed to the 127 device USB limit. It's also cheap enough - it can run on an old laptop/netbook for example.

I did not want to litter the post with links to everything I mention, since most of it is already listed in the OP or other posts, but if you need more details, links to products or software etc, just reply or PM me and I'll be happy to help.

I have mine set to 850 and I get a very stable 360k from each

I am using win 7 64bit with the cpuminer fixed power usage (running through a 49 port BE hub), I am running core at 800MHz (some are wobbly on 850)

My question is I can only get between 275-305KHs with each unit? I thought stock was this speed and clocking to 800 should yeald 380+

Is there something I can change? Is this right? I just want to get the most out of a stable unit.

hi gyus. I'm getting USB device descriptor request failed error when trying to connect gridseed to Win 8.1 x64, usb 2.0 port.

tried to connect to win 7 x64 - the same problem. device is not recognized.

Any ideas howto fix this ?

Don't you have to use

On the Gridseed wiibox controll there's a green led, is it supposed to light all the time or only for 3 seconds when you power the card?

Used the wezzy image and replaced cgminer with anderseens version.

I can not get past 10 hours with 20 seeds.
Single 24 port hub
-bobby
[/quote]
Can you post the links you used and I will have a go at setting it up and see if I get the same problem

[/quote]

https://litecointalk.org/index.php?topic=9908.msg138204#msg138204

Post #128
Thats What I did and used.

I have 20 running on the scripta image running fine and it has been for days

Where did you get the cgminer from?
Did you compile it your self?

[/quote]

Used the wezzy image and replaced cgminer with anderseens version.

I can not get past 10 hours with 20 seeds.
Single 24 port hub
-bobby
[/quote]
Can you post the links you used and I will have a go at setting it up and see if I get the same problem

[/quote]

I have 20 running on the scripta image running fine and it has been for days

Where did you get the cgminer from?
Did you compile it your self?

[/quote]

Used the wezzy image and replaced cgminer with anderseens version.

I can not get past 10 hours with 20 seeds.
Single 24 port hub
-bobby

Don't know about that software I have tried scripta and it works
I am using a 49 port usb hub
I have also tried use mine peon with a updated version of cgminer 3.7.2
But I get usb errors so that not quite sorted yet

Can you run 20 off the Raspberry pi with the hashra controla software?
The rpi does have 2 USB sockets, and the hubs are 10 ports each, so I was thinking it might be possible.
Dont know if it's stable though.