sorry for posting this mainboard-problem here,

[miohn]

but maybe someone has got a solution for me!

I have an ASRock X99 Formula OC (3.1) in my Slave and cannot get all my 4 x 1080 Ti Hybrid Cards working.
3 Cards are working without problems.
The 4. Card gets Power (Fan is also working) but did not get recognized in the device manager.

Tried nearly everything (CMOS reset after each card install, changing PCI Slots, Bios settings: 1Gen, 2 Gen, 3Gen and Auto, 4G enabling ........)
Win 10 (1706), i7 8650K, 64Gig RAm, 1200W PSU, Bios 3.6, NVidia 13.8813, M2 HD

I've read somewhere, that a special "custom" Bios is needed when working with more GPUs.
Is this true? And if yes, where can I get one?

Anything else I could try?

Thanks
Mike

[niestudio]

In case you haven't seen it, there is a dedicated Hardware forum here: viewforum.php?f=11

[miohn]

oh sorry!

Always forget that there are other forums!

regards
Mike