- Joined
- Jul 10, 2020
- Messages
- 37
I just updated my GPU from 3090 to 4090 suprim x, I am using Asus z790 apex Mobo and seasonic vertex 1200 PSU with dedicated 12vhpwr connector, in bios I set pcie to gen 4 but after reboot it is still stuck at x8 lanes, not sure if this GPU won't run in gen 4 mode even though 4090 has gen 4 host interface, In my bios setup it says if gen5 GPU is installed then it shares lanes with nvme in m.1 and goes to x8 lanes if nvme was gen 5 but my wd sn850 is gen 4 and looks like even though it is set to zen 4 the GPU might be running in gen 5 mode and I don't know how to fix this to get full gen 4 x16 bandwidth, any help appreciated.