Strix Z490 Gaming-E board GPU running at 4x??

[Exigeous]

Just noticed while looking at some settings in BIOS that it's reporting my GPU is running at x4 rather than x16. I've verified this with GPU-Z however the performance I'm getting is what I'd expect at x16. Here are the full details:

BIOS: 0607 (current, released 6/11/20)
PCI-e slots: single 2080Ti, top slot (the x16 slot), ALL other slots empty
NVMe drives: x2 (Samsung 970 Pro 512GB, slot 1 - Samsung 970 Evo Plus TB, slot 2)
SATA drives: x3 (x2 500GB Samsung 850, x1 3TB 7200 RPM) - in SATA_1, _2 and _3)

As I understand my final 2 SATA ports are disabled by using the second M2 slot but I can't understand why the GPU is report x4. Given the performance I'm seeing I sorta think it's just reporting incorrectly as I don't see how I'd be getting the framerates I'm getting otherwise (this GPU was in my previous z270/8086k machine and the framerate I'm seeing is 5-10% higher, basically what I'd expect).

Thoughts? I'm seeing this reported in GPU-Z and on one of the screens in BIOS.

Thanks!

[Sathorn]

I had the same problem like you, but my port speed was x4, and there was very small difference with performance, unnoticable without some tests.

[LotusExige]

UPDATE

It's FIXED - after all that it was a defective board. Given nothing made sense, a friend with the same board had zero issues I went and bought a new one, swapped everything over and POW - it's working perfectly now, running at x16. Defective board is already returned and refunded.

And after all that you'll be stunned at the performance increase of........ 0%. Literally no change I can see in any of the benchmarks I've run (about 6 different ones).

Regardless it's running at x16 now so my inner-dork is much happier.

Wanted to end by saying a HUGE THANK YOU to you guys for all your help, it really is greatly appreciated. I hope I can return the favor someday.

~x