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TUF X670E-PLUS Thunderbolt Add In Card contradictory information

smuu
Level 7

Hi All,

I have recently bought this Board: TUFX670E-PLUS. I also have a RTX4090 ROG STRIX OC and a Thunderbolt EX4 Card.

MB: https://www.asus.com/ch-de/motherboards-components/motherboards/tuf-gaming/tuf-gaming-x670e-plus/

EX4 Card: https://www.asus.com/ch-de/motherboards-components/motherboards/accessories/thunderboltex-4/

Since the GPU is to high i wanted to Put the EX4 Card into the Bottom X16 PCIE Slot of the Board. in
the manual is written, that it must be palced in the upper X4 Slot. i testd it anyways and basically it worked - the card was recoognized in Windows and also Devices are working. Prtoblem is, that i will have Boot Problems. System will Stop with VGA POST and wont boot, only after a fews reboot i get it work work sometimes. So this is no option. As soon i remove the EX4 Card it worked normally.

now i saw, that there is a "new"? Card: https://www.asus.com/motherboards-components/motherboards/accessories/usb4-pcie-gen4-card/

in the comptaibility List of this card is written, i need to place the card in the bottom slot:

tuf-x670e-plus-thunderbolt-add-in-card-contradictory-v0-4w7tum4ttf5e1.webp

basically my board has not 2x PCIE GEN4 x4. the upper slot is PCIE GEN4 x4 and the lower slot is PCIE GEN4 x16 ( runs at x4) so do you guess i can get it work with the new card in the bottom slot?

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smuu
Level 7

Nobody can say anything aboot this? What is this Asus?