GPU Mining Bandwidth Requirements
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Does anyone know the actual bandwidth requirements from a video card back to the CPU when mining? Obviously the 1x PCIe is plenty which is a 250mb/s channel.
The reason I ask is I found an external PCIe 1x card that allows you to connect GPUs to your PCs USB3.0 port. All you have to do from there is add the power supply to power the card but that’s the easy part. They are a bit expensive ($100) which makes it cost prohibitive, but I was thinking more in terms of cloning it with many more ports.
With USB 3.0 you should be able to theoretically push almost 4gbits/sec right? Probably 100% pipedream and I’m not sure I know the right people to do it, but it’s certainly interesting thought.
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As far as know and researched any pci-e should be fine, i know the smaller slots are same as bigger ones on new mbs.
I think on older mb’s may have problems picking up cards, tried a 6 year old mb on 7950’s and had no joy, could hve been driver issue tho as didnt have ati drivers installed.
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http://pixelsmashers.com/?p=1895
not quite what you were after, but interesting regardless :P
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This is what I was looking at - http://www.hwtools.net/Adapter/PE4H.html
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What about something like this?
http://www.sonnettech.com/product//echoexpresschassis.htmlThunderbolt has much more bandwidth
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[quote name=“sl1982” post=“9846” timestamp=“1370471345”]
What about something like this?
http://www.sonnettech.com/product//echoexpresschassis.htmlThunderbolt has much more bandwidth
[/quote]Haha yeah but not for $500 - $800 a piece. :o
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[quote name=“zythen” post=“9822” timestamp=“1370468514”]
This is what I was looking at - http://www.hwtools.net/Adapter/PE4H.html
[/quote]Reminds me of the days when IBM Thinkpads had a docking station for an external GPU.
I always wanted one of those but they were like $200+, now I would love one of these! Thanks for sharing.