Here's my current setup:

PC
EVGA 850w G3
Asus ROG Strix Z370-E MOBO (16GB /  i5 8400)

OS
HiveOS Linux (latest version with latest nvidia drivers) using ethermine

GPU's
Zotac Twin Edge3070
EVGA 3070 XC3 3070
Asus ROG Strix OC 3070
MSI Ventus 2x OC 3070

I can only get the Zotac and the MSI to work with the risers. When I connect the Asus and EVGA cards with the risers they are not detected by HiveOS. I've tried the following:

- Downloaded latest BIOS for motherboard
- Ensured 4G, VtD, Gen2 are all enabled in BIOS
- Downloaded latest HiveOS and Nvidia driver updates
- Switched around PCIE slots

Any suggestions on how I can get all four GPU's to work with the risers? I got the latest risers from www.gpurisers.com and connected via 4-pin molex.