6th GPU not working, Asrock BTC pro r2.0

Hi all,

I managed to get 5 GPUs (XFX rx580 8gb) running on my Asrock BTC pro r2.0 motherboard, on Windows 10. Claymore works fine with 5.

However, if I plug in my 6th, first it almost boots (get to login screen) but then shuts down and starts autorebooting.

What is likely the problem? I have a 1000W PSU, and I was using 600W for 4 cards (wall measured), so I should be able to get 6 cards running. They aren't even on stress when booting (I think), so don't think this is the problem. Using USB powered risers.
Do I need a certain setting in Windows / BIOS of motherboard to get the 6th card working? I googled and searched this reddit but didn't see an answer.

Rig info:
- 8gb DDR3 RAM
- Windows 10 pro 64bit
- Asrock BTC pro r2.0
- XFX rx580 8gb black edition GPUs
- USB powered risers (v007)
- Flashed ROM (custom straps)
- Driver version 17.1.1 (Crimson)

Love to hear your help! Thanks.

Topic: 6th GPU not working, Asrock BTC pro r2.0 (Read 248 times)