Can't get my rig working with 7 x RX580

[kbi]

Hi,

I just bought my new rig but I cannot make it working.

Here is my setup :
- Motherboard : MSI Z170A SLI PLUS
- Processor : INTEL CORE I3-6100 (3.7 GHZ)
- Memory : G.SKILL AEGIS 4 GO (1 X 4 GO) DDR4 2133 MHZ CL15
-GPU :
      6x => Sapphire PULSE Radeon RX 580 8GD5
      1x => ASUS ROG STRIX AMD Radeon RX 580 TOP edition 8Go
-PSU : Corsair HX1000i 80PLUS Platinum
- Risers :
  * 1x M.2 to PCIe : https://www.amazon.fr/Bonjouree-Adaptateur-Convertisseur-dalimentati-Tournevis/dp/B072VBZ2LP/ref=sr_1_1?ie=UTF8&qid=1502905302&sr=8-1&keywords=m2+pci
  * 4x PCI-E 1X tp 16X risers : https://www.amazon.fr/Espresso-3-0-PCI-E-Adaptateur-dalimentation-extraction/dp/B01LWKSOH0/ref=sr_1_1?ie=UTF8&qid=1502905341&sr=8-1&keywords=pci+riser
  * 3x PCI-E X16 RISER CABLE : http://www.ldlc-pro.be/fiche/PB00218427.html

I assembled the rig and powered on but I can't get the 7 GPU to work.
I tried :
1) with 7 GPU
- Install windows 10,
- Install the GPU drivers (I tried 3 times but this always causes a blue screen if the 7 cards are plugged in but it works well with only 1 Graphic card )
=>this doesn't work

2) with 7 GPU
- Install windows 10,
- Do not install the drivers
- Install claymore (can't get it working, it always crash)
=>this doesn't work

3) with 1 GPU (ASUS ROG STRIX AMD Radeon RX 580 TOP edition 8Go)
- Install windows 10,
- Install the drivers
- Install claymore
=> This works well

4) with 4 GPU
- I bought Ethos : https://gpushack.com/collections/gpushack/products/ethos-16gb-digital-download
- Installed on a USB key (8Gb)
- Start it
- It works with 4 GPU's (I tried every combination of 4 GPU and it always work => there isn't any hardware problem)
- It stops working with more than for gpu (tried with 5, 6 and 7. they are always detected on boot) => error : kernel panic, I tried this without success : http://ethosdistro.com/kb/#many-gpus


Please, help

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[1715645389]

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[1715645389]

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[1715645389]

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[1715645389]

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[kbi]

I have another small PSU of 500W to power 2 GPUs => 5 by the main PSU and 2 by the secondary one.
It's not yet installed => everything is using the same PSU for now


But I'm sure that my this is not the problem.

[kbi]

Nobody has an idea ?

[andydis]

Bonjour!

DO NOT USE the M2 adaptor, DO NOT USE these http://www.ldlc-pro.be/fiche/PB00218427.html


Your board will only support 6 GPU

you will need 6  x of these (not 4)  :- https://www.amazon.fr/Espresso-3-0-PCI-E-Adaptateur-dalimentation-extraction/dp/B01LWKSOH0/ref=sr_1_1?ie=UTF8&qid=1502905341&sr=8-1&keywords=pci+riser

THEN IT WILL WORK.