Recently I came across supermicro X9DRD-iF servers. InterServer had 14 servers to go online with hardware raid. When the first one was tried the card would time out, and it was reproducible on the other machines. The first thought was the raid card itself had a problem with this motherboard. The card ware 3ware 9750-4i. The next raid card tried was 9650SE which had the exact same issue. An older adaptec was tried too no results. After a little hair pulling I decided to check for possible bios upgrades. Nothing was listed on the supermicro website for this motherboard. I contacted them on a Saturday and finally by Tuesday night an email came through. They attached a bios upgrade (4 MB SHA1 = cabb22f3d834d9286768c34a6d9221a1194bb4d4). I’ve linked to the bios upgrade since at the time of this writing it was not on the supermicro website.