I found this thread quite by accident while searching Google. I bought the K8T Neo 2 v2.0 in a sweet package deal from TigerDirect a few days ago. It booted right up, but RAID wasn't seen by bios, and and the RAID setup interface was not available, throwing the error ""Have option ROM can't be invoke, vendor ID 1106H, device ID 3149H." A search of Google found that this can usually be remedied by flashing to the prior bios. It came with version 3.6, so I flashed to 3.5, and I have RAID back. Yippee! I don't have to RMA the board.
I did flash with your modded bios, and while SATA wasn't available, at least it didn't throw errors. I guess the long and short of it is, I'm wondering if you, Mr. Ketxxx, would be willing to mod bios version 3.5 for me? A token PayPal donation could be arranged.