GPU Mining RIG (ETH ZEC) - 6 or 7 GPU

[vapourminer]

you mean from a standard usb port/header on the mobo to a pcie slot adapter? no go.

the usb cables in risers just carry the pcie signals from the slot to the adapter. they do not use the usb protocol; the usb cables just happen to have enough individual wires and bandwidth to work so are convenient to use.

you could try a pcie port multiplier but not sure how well you could fit that in there.

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[AriesIV10]

you mean from a standard usb port/header on the mobo to a pcie slot adapter? no go.

the usb cables in risers just carry the pcie signals from the slot to the adapter. they do not use the usb protocol; the usb cables just happen to have enough individual wires and bandwidth to work so are convenient to use.

you could try a pcie port multiplier but not sure how well you could fit that in there.

Thank you for the information.  Yes, that was part of my question "Can the standard USBs interface a GPU."  Answer, No, Thank you.  

Second part of the question.  Does anyone have experience with these devices:  

PCI-e Express 1X to 3 Port 1X Switch Multiplier HUB Riser Card +USB Cable 1PC



http://www.ebay.com/itm/PCI-e-Express-1X-to-3-Port-1X-Switch-Multiplier-Riser-HUB-Card-USB-Cable-1PC-/191974739332?hash=item2cb2960d84:g:1AwAAOSw8gVX30ST

[zombie007_new]

you mean from a standard usb port/header on the mobo to a pcie slot adapter? no go.

the usb cables in risers just carry the pcie signals from the slot to the adapter. they do not use the usb protocol; the usb cables just happen to have enough individual wires and bandwidth to work so are convenient to use.

you could try a pcie port multiplier but not sure how well you could fit that in there.

Thank you for the information.  Yes, that was part of my question "Can the standard USBs interface a GPU."  Answer, No, Thank you.  

Second part of the question.  Does anyone have experience with these devices:  

PCI-e Express 1X to 3 Port 1X Switch Multiplier HUB Riser Card +USB Cable 1PC

https://i.imgur.com/MIE5u3q.png

http://www.ebay.com/itm/PCI-e-Express-1X-to-3-Port-1X-Switch-Multiplier-Riser-HUB-Card-USB-Cable-1PC-/191974739332?hash=item2cb2960d84:g:1AwAAOSw8gVX30ST

its working, but doesnt worth the effort and the money. i think only linux will user 7 cards, you will have problem winth windows. Its easyer to make 6 card rigs with win10 imho.

[citronick]

you mean from a standard usb port/header on the mobo to a pcie slot adapter? no go.

the usb cables in risers just carry the pcie signals from the slot to the adapter. they do not use the usb protocol; the usb cables just happen to have enough individual wires and bandwidth to work so are convenient to use.

you could try a pcie port multiplier but not sure how well you could fit that in there.

Thank you for the information.  Yes, that was part of my question "Can the standard USBs interface a GPU."  Answer, No, Thank you.  

Second part of the question.  Does anyone have experience with these devices:  

PCI-e Express 1X to 3 Port 1X Switch Multiplier HUB Riser Card +USB Cable 1PC



http://www.ebay.com/itm/PCI-e-Express-1X-to-3-Port-1X-Switch-Multiplier-Riser-HUB-Card-USB-Cable-1PC-/191974739332?hash=item2cb2960d84:g:1AwAAOSw8gVX30ST

I have these on a test rig (MEGATRON): 7 x R7-370s, Win 10, ASrock H81 Pro BTC mobo, 8GB RAM, 120Gb SSD.... working like a charm. The card goes into the last slot and connects to GPU 6 and 7.

Its currently mining ZEC - fast and furious, with CZM v5, runs cool

[AriesIV10]

you mean from a standard usb port/header on the mobo to a pcie slot adapter? no go.

the usb cables in risers just carry the pcie signals from the slot to the adapter. they do not use the usb protocol; the usb cables just happen to have enough individual wires and bandwidth to work so are convenient to use.

you could try a pcie port multiplier but not sure how well you could fit that in there.

Thank you for the information.  Yes, that was part of my question "Can the standard USBs interface a GPU."  Answer, No, Thank you.  

Second part of the question.  Does anyone have experience with these devices:  

PCI-e Express 1X to 3 Port 1X Switch Multiplier HUB Riser Card +USB Cable 1PC



http://www.ebay.com/itm/PCI-e-Express-1X-to-3-Port-1X-Switch-Multiplier-Riser-HUB-Card-USB-Cable-1PC-/191974739332?hash=item2cb2960d84:g:1AwAAOSw8gVX30ST

I have these on a test rig (MEGATRON): 7 x R7-370s, Win 10, ASrock H81 Pro BTC mobo, 8GB RAM, 120Gb SSD.... working like a charm. The card goes into the last slot and connects to GPU 6 and 7.

Its currently mining ZEC - fast and furious, with CZM v5, runs cool

Would you think that this would lend the opportunity to have a 8+ GPU RIG?

[citronick]

you mean from a standard usb port/header on the mobo to a pcie slot adapter? no go.

the usb cables in risers just carry the pcie signals from the slot to the adapter. they do not use the usb protocol; the usb cables just happen to have enough individual wires and bandwidth to work so are convenient to use.

you could try a pcie port multiplier but not sure how well you could fit that in there.

Thank you for the information.  Yes, that was part of my question "Can the standard USBs interface a GPU."  Answer, No, Thank you.  

Second part of the question.  Does anyone have experience with these devices:  

PCI-e Express 1X to 3 Port 1X Switch Multiplier HUB Riser Card +USB Cable 1PC



http://www.ebay.com/itm/PCI-e-Express-1X-to-3-Port-1X-Switch-Multiplier-Riser-HUB-Card-USB-Cable-1PC-/191974739332?hash=item2cb2960d84:g:1AwAAOSw8gVX30ST

I have these on a test rig (MEGATRON): 7 x R7-370s, Win 10, ASrock H81 Pro BTC mobo, 8GB RAM, 120Gb SSD.... working like a charm. The card goes into the last slot and connects to GPU 6 and 7.

Its currently mining ZEC - fast and furious, with CZM v5, runs cool

Would you think that this would lend the opportunity to have a 8+ GPU RIG?

Yes.... but after talking to many members.... anything beyond 8 cards need Linux OR Windows Advanced Server with several registry hacks and special drivers... gets complicated.

Also you need bigger PSU.

Someone in Ethereum forum did 8 cards on Ubuntu 14.04.

If you want multi multi GPU, search for this dude on Claymore Eth thread, who did I think 18 x GPUs on Linux and Claymore had to add feature to allow more than 12 GPUs. He used a PCI extension daughter board - usually used for deep learning machines -- but that is super expensive and not practical for mining

[AriesIV10]

Thanks for the information!  I am going to stick with a 7 GPU setup for this RIG.  There is only so much space in this RIG! 

[Kyubey]

What if use 7 such multiplerlers with 3 cards in each to build 21-card rig on a single motherboard? What if install 3 multiplers in each multipler resulting in 63 card per rig? Where significant performance drop will appear?

[AriesIV10]

What if use 7 such multiplerlers with 3 cards in each to build 21-card rig on a single motherboard? What if install 3 multiplers in each multipler resulting in 63 card per rig? Where significant performance drop will appear?

Look at the posting by citronick.  Looks like there are other issues that come into play.

[citronick]

What if use 7 such multiplerlers with 3 cards in each to build 21-card rig on a single motherboard? What if install 3 multiplers in each multipler resulting in 63 card per rig? Where significant performance drop will appear?

Look at the posting by citronick.  Looks like there are other issues that come into play.

It has been done actually by Nippy -- see this link and see the motherboard (its a USD$2000 PCI extension board for deep learning systems, like Facebook's Project Big Sur)

https://bitcointalk.org/index.php?topic=1433925.msg16380747#msg16380747



Its not as straight forward as ... just putting these multiplexors into an array ... you need Linux and special AMD drivers to make this work.... its entirely different animal all together. Claymore even needed to put a new version of ETH miner to support that many cards.

[AriesIV10]

What if use 7 such multiplerlers with 3 cards in each to build 21-card rig on a single motherboard? What if install 3 multiplers in each multipler resulting in 63 card per rig? Where significant performance drop will appear?

Look at the posting by citronick.  Looks like there are other issues that come into play.

It has been done actually by Nippy -- see this link and see the motherboard (its a USD$2000 PCI extension board for deep learning systems, like Facebook's Project Big Sur)

https://bitcointalk.org/index.php?topic=1433925.msg16380747#msg16380747



Its not as straight forward as ... just putting these multiplexors into an array ... you need Linux and special AMD drivers to make this work.... its entirely different animal all together. Claymore even needed to put a new version of ETH miner to support that many cards.

WHooooaaaah!  That is a BEAST!  Cool!  not profitable, but Cool!

[xxcsu]

you mean from a standard usb port/header on the mobo to a pcie slot adapter? no go.

the usb cables in risers just carry the pcie signals from the slot to the adapter. they do not use the usb protocol; the usb cables just happen to have enough individual wires and bandwidth to work so are convenient to use.

you could try a pcie port multiplier but not sure how well you could fit that in there.

Thank you for the information.  Yes, that was part of my question "Can the standard USBs interface a GPU."  Answer, No, Thank you.  

Second part of the question.  Does anyone have experience with these devices:  

PCI-e Express 1X to 3 Port 1X Switch Multiplier HUB Riser Card +USB Cable 1PC



http://www.ebay.com/itm/PCI-e-Express-1X-to-3-Port-1X-Switch-Multiplier-Riser-HUB-Card-USB-Cable-1PC-/191974739332?hash=item2cb2960d84:g:1AwAAOSw8gVX30ST

working fine for me on asrock H97 Anniversary and 7 rx 480 cards (win 10/64bit) , i was not able to get the 8th rx480 working in that setup.
it also working fine for me in a GA-X99M-Gaming 5 (rev. 1.0) mobo and 6 cards ( the mobo have 4 slots : 2 x PCI Express x16 slots, running at x16 (PCIE_1/PCIE_2) , 1 x PCI Express x16 slot, running at x8 (PCIE_3) , 1 x PCI Express x1 slot ) .

[mettalmag]

has anyone tested this PCI-e Express 1X to 3 Port multiplier ?
I have 3x GPU mining rigs and managing them is a pain in the ass, if I could cut in half the amount of PCs that would be great.
Also I have 6x GPU rigs on windows 10, what is the max GPU supported in windows 10 ?

[vlcmstne]

That case is pretty deep, any idea if it would fit in something like this?

http://www.costway.com/18u-wall-mount-network-server-data-cabinet-enclosure-rack-glass-door-lock-w-fan.html?fee=4&fep=3048&utm_source=google&utm_medium=googleshopping&utm_campaign=googleshopping&gclid=CjwKEAiA6rrBBRDsrLGM4uTPkWASJADnWZQ4PXZoXo2d4OuiK_zXz-UI05HNpj3Nx8vVD4cnLwsuwRoCkWTw_wcB

[AriesIV10]

That case is pretty deep, any idea if it would fit in something like this?

http://www.costway.com/18u-wall-mount-network-server-data-cabinet-enclosure-rack-glass-door-lock-w-fan.html?fee=4&fep=3048&utm_source=google&utm_medium=googleshopping&utm_campaign=googleshopping&gclid=CjwKEAiA6rrBBRDsrLGM4uTPkWASJADnWZQ4PXZoXo2d4OuiK_zXz-UI05HNpj3Nx8vVD4cnLwsuwRoCkWTw_wcB

Mine is a 4U case measuring 16.8 x 7 x 25 inches

[batko]

you mean from a standard usb port/header on the mobo to a pcie slot adapter? no go.

the usb cables in risers just carry the pcie signals from the slot to the adapter. they do not use the usb protocol; the usb cables just happen to have enough individual wires and bandwidth to work so are convenient to use.

you could try a pcie port multiplier but not sure how well you could fit that in there.

Thank you for the information.  Yes, that was part of my question "Can the standard USBs interface a GPU."  Answer, No, Thank you.  

Second part of the question.  Does anyone have experience with these devices:  

PCI-e Express 1X to 3 Port 1X Switch Multiplier HUB Riser Card +USB Cable 1PC



http://www.ebay.com/itm/PCI-e-Express-1X-to-3-Port-1X-Switch-Multiplier-Riser-HUB-Card-USB-Cable-1PC-/191974739332?hash=item2cb2960d84:g:1AwAAOSw8gVX30ST

I have PCI-e Express 1X to 3 Port 1X Switch Multiplier HUB Riser Card


I have 7x Rx 480, H81 PRo btc with switch works fine, but 8x Rx 480 not started (windoes 10 with 16.9.2 driver)

[AriesIV10]

Have you tried to go more than 7 gpus on 1 motherboard? 

Great RIG.

[batko]

yes, but 8xRx 480 gpu rig not started with 7x 480 works fine, but 8x Rx 480 not boot

about 1050 H/s with clay 7.0 for 7xRx 480 Nitro

[Kasmetski]

What if use 7 such multiplerlers with 3 cards in each to build 21-card rig on a single motherboard? What if install 3 multiplers in each multipler resulting in 63 card per rig? Where significant performance drop will appear?

Look at the posting by citronick.  Looks like there are other issues that come into play.

It has been done actually by Nippy -- see this link and see the motherboard (its a USD$2000 PCI extension board for deep learning systems, like Facebook's Project Big Sur)

https://bitcointalk.org/index.php?topic=1433925.msg16380747#msg16380747



Its not as straight forward as ... just putting these multiplexors into an array ... you need Linux and special AMD drivers to make this work.... its entirely different animal all together. Claymore even needed to put a new version of ETH miner to support that many cards.

I think Big Sur is part of the Open Compute Project so it's OpenSource. Now we need only some small manufacturer (maybe local) who will want to build it  for less money

[m0niker]

What if use 7 such multiplerlers with 3 cards in each to build 21-card rig on a single motherboard? What if install 3 multiplers in each multipler resulting in 63 card per rig? Where significant performance drop will appear?

Look at the posting by citronick.  Looks like there are other issues that come into play.

It has been done actually by Nippy -- see this link and see the motherboard (its a USD$2000 PCI extension board for deep learning systems, like Facebook's Project Big Sur)

https://bitcointalk.org/index.php?topic=1433925.msg16380747#msg16380747

https://www.sabrepc.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/1/8/1895.jpg

Its not as straight forward as ... just putting these multiplexors into an array ... you need Linux and special AMD drivers to make this work.... its entirely different animal all together. Claymore even needed to put a new version of ETH miner to support that many cards.

Actually big sur while it does have an expansion board it only uses 8 gpus, although it can run k80s which would then need changes similar to the OSS board, it would still not need much in the way of bios mods to work, rather a small hypervisor kernel change. The stock linux kernel is not happy with OSS boards iirc, and they do have a hard limit of 16 cards(just in the way of how graphics cards are allocated space today). If you want to see an example bios for a system that was made to work with 8+ cards on an amd mobo you should look up fastra II