Hi guys,

I'm running the latest Nvidia OS build with 6 x Zotac GTX 1070, no overclocking, no Power watt limit, pure stock. PSU is a 1500W AXi from Corsair so there is more than enough juice. 5 cards work fine.. at the moment I connect a 6th one, whole system crashes/reboots after a few seconds and once mining starts. I checked the risers and mix and matched the connections and they all check out, so I'm out of ideas as I can't really tell what's going on and if it's the software crashing or a hardware issue. It doesn't seem as a hardware issue as I tried all the cards one by one and also different combinations of 5 cards running at a time (e.g. only 0-1, 4 and 5 and 6 connected by disconnecting the USB end), none of them had an issue or any of the combos. It's only when all 6 run together.

Mobo is a MSI Carbon Gaming Pro Z170. I've disabled Audio, enabled 4G decoding/mining, only IGD with 32M, latest bios. Gen on PCIs is set to Auth, but I tried with Gen2 as well, same result.

Any ideas how to debug this?