have you run X1 yet - to see if card needs an update ?

You are not the first victim of unparalleled customer service in this regard, and are likely not the last.

https://forums.evga.com/Weird-behavior-with-the-third-fan-on-a-3080-FTW3-Ultra-m3234265.aspx

[link=https://forums.evga.com/3080-FTW-Ultra-Fan-3-weird-issue-m3209557.aspx]https://forums.evga.com/3...rd-issue-m3209557.aspx
[/link]
[link=https://forums.evga.com/RTX-3080-FTW3-Ultra-Gaming-Issue-with-Fan-3-m3252257.aspx]https://forums.evga.com/R...th-Fan-3-m3252257.aspx

https://forums.evga.com/F...S-switch-m3470444.aspx[/link]
...etc

kevinhandsomeliu
what ami going to do！ if the RMA give me a card with same issue, can’t imagine that

If you delve into the sample of posts I linked, at least two other users reported RMAs for this issue and reception of an RMA with the same issue. 
EVGA already has your purchase, so I would advise pursuing the first RMA. If your replacement has the same issue or another of the common ones, you would not be out of bounds requesting a refund. Unfortunately, in this climate, going with a less unreliable 3000 series OEM may prove impossible. So, if the sunk cost is more important than having a GPU, you may want to stick with the RMA merry-go-round.