Code 12 error when plugging 6 Sapphire RX580 on Gigabyte H110

[liomisr]

Hello,

When I used to work withe 5 SAPPHIRE NITRO+ RX 580 8G and the device work very Good but when i  plug 6 SAPPHIRE NITRO+ RX 580 8G GPUs using USB risers on Gigabyte H110 motherboard the following error was observed in Device Manager:
 the problem:
https://c.top4top.net/p_644xh2mp1.png
https://d.top4top.net/p_644e8jk32.png

i try everything from updating the bios and changing all risers but nothing work

waiting for your help

[makomako]

i had this problem with my Biostar tb250 pro, you need to set max tolud to 3.5 at BIOS that fixed my problem.

[liomisr]

i had this problem with my Biostar tb250 pro, you need to set max tolud to 3.5 at BIOS that fixed my problem.

Unfortunately  i can't find this "TOLUD" in this Motherboard

[CryptoWatcher420]

i had this problem with my Biostar tb250 pro, you need to set max tolud to 3.5 at BIOS that fixed my problem.

how about anything relating to 4g decoding or anything pci express related

[JaneizBlutt]

I got this error too. Anyone know how to fix. 

[Vann]

Code 12 is a PCI-E resource conflict. Change all the x1 PCI-E slots to GEN 1 in the Bios and do a clean install of the drivers after using DDU in safe mode and that should fix it.