@ethfan, Dead yet? Still nothing. Still can't get Linux to see a GPU on these PCIe bridges and there's not a whole lot of info out there about them. But my USB risers also came this morning and so I've managed to get all my GPU's running at once (Yay!). Which means now I've got nothing left to test with ....
I don't know why or why it wasn't before but I've just plugged it back in and dropped a 7950 in it and it's mining.
Sweet! Can you please test it with all three GPUs and see how it goes for, like a day of mining. And Is it Windows or Linux? If you could share some screenshots, it would be helpful.
The two blue boards on the right are the PCIe switches. One switch is in the motherboard, the other is plugged into the first switch. There is a GPU plugged into each of them and it's still mining happily.
lspci output showing the switches and GPU's
...chugga-chugga-chugga...
Maybe tomorrow I'll be able to share a 130Mhs 8x R7 370 rig pulling 1100W at the wall.
@o0ragman0o really really a good news. In your opinion, under linux, can a h81m pro btc drive 18x gpus? Have you got any way to test nvidia drivers? (Tip: maxwell won't work)
@o0ragman0o, Turning blue now waiting for your 8 GPU test. Because I have managed 7 GPU on six slots (courtesy of a 7990 in one) and gotten stuck trying 8 (2x 7990).
Congrats lads! Now we don't have the hardware limitation. Even your old, dual core mobo would do!! Next goal would be bypassing this driver limitation.
Maybe tomorrow I'll be able to share a 130Mhs 8x R7 370 rig pulling 1100W at the wall.
The 1300 watt EVGA G2 only has 6 vga power outlets. If you get 8 cards working, is there a work around to connect 8 cards to one 1300 watt, or can you only connect 6 R7 380's? Would you be forced to use 2 750 watt units...or a 1600? Looking forward to your results.
@ThatDudeThere I have a 1200W Silverstone PSU's with 4 PCIe power ports. Each PCIe cable has an 8 + 6 pin connector. As the R7 370's only require a 6 pin, all 8 GPU's will covered on the one PSU. Two of the 370's are currently in a rig with some 280x's and 7950s. Just reluctant to take down all my working rigs just to experiment. Also need to redesign the rear GPU supports to take the USB risers properly.
Just bumping this for informational purposes in google. These switches still do not work with the 1070/1080. The switch is detected, but not the cards.
I got 3 of these few weeks back, but still unable to make them work. When I connect to motherboard, the expander board is recognized, but when connect any pci-e device to it, it doesn't recognize the device, no matter what the device is. Tried with R7 265, R7 270/x, 7950, 7950 (e.g. all types of AMD cards), 2 lan cards (intel and broadcom based), a sound card, linux and windows - on all of the three boards no pci-e device is being recognized. The boards I tried include H61DEL, H81 Pro BTC, some X58 boards, even some old LGA 775 boards, with absolutely same success. Still no reply from seller (very poor english, I suspect I won't get any reply ever)
I somehow doubt that all the three expander boards to be broken and obviously I'm doing something wrong. Any suggestions are welcome
Yep, this was exactly I imagined to happen... Did you install the board itself first (with no pci-e devices connected, to install drivers) or did you simply plugged everything at once?
I used it and 1 card in it booted and the gpu was seen, shutdown and added second gpu and it also was seen...(that was the 7th in the rig) but ran out of power options to add the 8th.
Comments
let us know
I've put one GPU on to test. So far
lspci
can't see the GPU but can see the bridge in Ubuntu Server Linux 14.04.Keep you all posted...
I don't know why or why it wasn't before but I've just plugged it back in and dropped a 7950 in it and it's mining.
Can you please test it with all three GPUs and see how it goes for, like a day of mining.
And Is it Windows or Linux? If you could share some screenshots, it would be helpful.
Thanks for trying out.
The two blue boards on the right are the PCIe switches. One switch is in the motherboard, the other is plugged into the first switch. There is a GPU plugged into each of them and it's still mining happily.
lspci
output showing the switches and GPU's...chugga-chugga-chugga...
Maybe tomorrow I'll be able to share a 130Mhs 8x R7 370 rig pulling 1100W at the wall.
I've got my hub too and will do testing at the end of this week.
Now we don't have the hardware limitation. Even your old, dual core mobo would do!!
Next goal would be bypassing this driver limitation.
The test rig in the photo shows a Gamemax 850W
Save someone shipping and handling both ways.
I somehow doubt that all the three expander boards to be broken and obviously I'm doing something wrong. Any suggestions are welcome
Did you install the board itself first (with no pci-e devices connected, to install drivers) or did you simply plugged everything at once?
these were all r9 390s
boysie
no linux server sera que não tira o limite de 8 vga ?