3 screens passthrough VM OK with Geforce 710 but NOK with 1060GTX ( 2 is ok )

Hello

Here's my problem. I have a well working VM with some devices that are passthrough for a long time ( 2 NVMEs, a dedicated USB card, 1 Geforce 710 GPU )

I exported de VBios with the spaceinvader's tool ( thx a lot man ! ). Everything goes well then I wanted to swap the 710 to a 1060GTX.

I exported the new VBios, boot the VM, goes into Windows, download the new drivers and... black screen !

The VM boot in recovery mode with no problem ( obviously with no nvidia drivers ). but showing a bunch of errors

I done a bunch of thing then realize that the VM work perfectly with 2 screens, with the 3D perf of the 1060. as soon as I plug the 3rd screen, no matter what combinaisons/orders of screens I use, it goes black screen.

Also if I boot with 3 screens, it goes black after the window's unraid boot logo and then if I unplug 1 screen, boot continu like a charm !

I am currently in unraid 7.1.4

I tested with Q45 and i440fx, resize bar and decode above 4g activated and VT-x in bios

I have no more ideas, I need your brains

Thx

vm log.txt