can't passthru primary gpu

for the past few weeks i have been trying to passthru my primary graphics card (GTX 980Ti)

but i keep getting blackscreens

things i tried:

- binding the card (i even binded the pci-e slot)

- tested it on both Windows 7 and Windows 10 VM's (same result)

- added original rom file

IOMMU and HVM are enabled

while i started up the VM i getthese errors in System Log

Nov 11 11:41:52 ZS-001VM kernel: vfio-pci 0000:65:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
Nov 11 11:41:52 ZS-001VM kernel: br0: port 2(vnet0) entered blocking state
Nov 11 11:41:52 ZS-001VM kernel: br0: port 2(vnet0) entered disabled state
Nov 11 11:41:52 ZS-001VM kernel: device vnet0 entered promiscuous mode
Nov 11 11:41:52 ZS-001VM kernel: br0: port 2(vnet0) entered blocking state
Nov 11 11:41:52 ZS-001VM kernel: br0: port 2(vnet0) entered forwarding state
Nov 11 11:41:52 ZS-001VM kernel: vfio_ecap_init: 0000:65:00.0 hiding ecap 0x1e@0x258
Nov 11 11:41:52 ZS-001VM kernel: vfio_ecap_init: 0000:65:00.0 hiding ecap 0x19@0x900
Nov 11 11:41:52 ZS-001VM kernel: resource sanity check: requesting [mem 0x000c0000-0x000dffff], which spans more than PCI Bus 0000:00 [mem 0x000c4000-0x000c7fff window]
Nov 11 11:41:52 ZS-001VM kernel: caller pci_map_rom+0x7a/0x15e mapping multiple BARs
Nov 11 11:41:52 ZS-001VM kernel: vfio-pci 0000:65:00.0: No more image in the PCI ROM

zs-001vm-diagnostics-20201111-1210.zip