My experience with Asus was not a pleasant one.
I RMA'd a Asus WS C621E SAGE, photo'd the sockets (pristine), and made sure the OEM covers were on them.
I even sent it back in the original box and packaging , even though they tell you it will not be returned that way.
I wanted to be sure it arrived in excellent condition.
Imagine my surprise when they said it would not be covered under warranty due to socket damage.
The photos they sent showed some pins misaligned (about 5 in the corners on 1 socket, odd).
When I complained that I had photos and that it was shipped with the OEM socket covers, they said it didn't matter, that was the way they received it and the warranty was void.
BUT, they did offer to repair it at a cost of $200 more than I could buy a brand new one from Amazon.
I told them to just send it back, which they did, in a plain white box with no covers on the sockets.
Although I replaced it with a new board from Amazon, it is the last Asus workstation or server board I will ever buy.
All my others have been Gigabyte (commercial, yes, separate from consumer) and NEVER had a single issue with RMAs or even reasonably priced out of warranty repairs.