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Author Topic: Setting up Multiple FPGA's ??  (Read 754 times)
photoa6155 (OP)
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June 23, 2012, 09:29:57 PM
 #1

I'm had a question on the best way to link multiple fpga boards. Lets just say 20. Equip needed? Any specific specs needed on computer that could run that many? Multiple USB Hubs any recommendations? 2 Corsair power supplies, What am I missing? Whats the best OS to run this setup, I am familiar with linux but no programming expert. Any help would be appreciated. If a senior member could repost to the hardware forum that would be great. Thanks
photoa6155 (OP)
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June 24, 2012, 04:52:45 AM
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There must be some guru's out that could help me.
Phraust
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June 24, 2012, 05:05:38 AM
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For ten BFL FPGAs, i'm using a 12 port usb hub (satechi) unpowered, a corsair ax1200 with custom cables (by Cablelz: https://bitcointalk.org/index.php?topic=74397.0) on a macmini server (10.7.4).  I've tried running them on something as simple as a dockstar using archlinux, and it worked pretty well.

Honestly, it really depends on what you want to work with.  Just about anything with USB should work, I've seen people running them on routers.
photoa6155 (OP)
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June 24, 2012, 05:49:23 AM
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Thanks Phrast, Info is much appreciated. Yeah I saw the guy running them off just routers,  looks great, I think that it out of my scope of knowledge.  I don't want to end up bricking my router and units. How many singles can you runn off the mac mini server?
Garr255
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June 24, 2012, 05:56:52 AM
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This costs significantly less than any mac, even cheaper than an Apple II Tongue

http://www.amazon.com/gp/product/B006DEBXD0/

I'll be hosting a few BFL Singles off of it.

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Phraust
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June 24, 2012, 06:43:58 AM
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Dunno, I guess whatever the usb limit is (127).  I also use the mac mini as my media/storage server, since we all have macs, and there aren't any noticeable problems (uptime is great, I'm also running an external superdrive, and three or four USB drives for storage and backup across the network).  Oh, and iTunes sharing.
Michail1
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June 24, 2012, 03:05:44 PM
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This costs significantly less than any mac, even cheaper than an Apple II Tongue

http://www.amazon.com/gp/product/B006DEBXD0/

I'll be hosting a few BFL Singles off of it.

What do you mean by hosting on the TP-Link?

Still need the USB hub and computer, right?
Are you able to have the BFLs to hub.  then to TP-Link.  Computer then connected to network via IP to the BFLs?

Phraust
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June 24, 2012, 07:30:24 PM
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What software are you using for your mac mini to recognize the BFL's?

I'm using the FTDI drivers http://www.ftdichip.com/Drivers/VCP.htm and the latest version of cgminer.
gonella
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June 24, 2012, 07:37:55 PM
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Is it easier to resell these cards?
Garr255
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June 24, 2012, 08:08:00 PM
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Is it easier to resell these cards?

Easier than ASICs, more difficult than GPUs.

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photoa6155 (OP)
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June 25, 2012, 01:43:35 AM
 #11

thanks to every one who responded I think i have a decent idea of set-up needed.
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