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

I take this isn't like the old GPU limit thing and it's an unkown to a lot of people?

If you don't have any automation software you shouldn't run 100 of these.

It's just idiotic to think that you should run 30+ mhash or 100+ devices on one system.

Spread the control out to 10-64 per control system and develop some automation tools or use the ones I post all over for linux.

I do have software automation setup for alerts, restart cgminer, etc.. so no problem there.

The 127 usb device limit is my problem as stated here: http://en.wikipedia.org/wiki/USB_hub

@wolfey2014, you stated if I knew what I was looking for this should be easy to find?

Can you give me some hints?

I dislike you.

Haha well thank you kind sir

So maybe using a motherboard with multiple USB controllers will work? Just thinking out loud. Any ideas there?

Though I fundamentally disagree with the idea of trying to run hundreds of miners from a single controller, you can always use one of these: http://www.ioiusb.com/Host-Adapter/U2X4-PCIE1X01.htm (i'm not a big fan of single points of failure so please at least get a cheap server case with dual power supplies and RAID-1. And don't forget UPSs!)

Its a 4x1 USB 2.0 card with 4 independent ports that supports 127 devices each, so that'll get you to 500 miners at least. How the OS will address them is up to you (I have no idea if there are any limitations).

Best of luck,

-EMoomjean

Hello Emoomjean. You seem pretty experienced / educated on USB gear.
Can you point me in the direction of some decent technical information on USB systems and how they work,exactly?
I'd like to read up on their nomenclature - in full. I need to learn this stuff,,,,fast! Wink

I am not fully comprehending how 4 -127 device capable ports are going to help overcome the problem with the semi-unstable performance of all the hubs and ports downstream from there. Again, not arguing, just want to understand, exactly how that works - in detail.
Also, does anyone make an enclosed version of that unit for Win 7 PC's with USB 2.0 High Speed ports.
Thanks
Wolfey2014