I have X7SPE-H board, when i update the BIOS from Supermicro website, after build Intel on board RAID, after reboot will hang up.
HDD information : http://www.wdc.com/wdproducts/library/SpecSheet/ENG/2879-771362.pdf
Please request Tech support to get BIOS file: X7SPA1.A14 to fix this issue.