Well, an LSI SAS 9211-4i isn't compatible with an ASUS A8N-SLI Premium. I created a MS-DOS 2.88mb bootable image, added sas2flsh & firmware, created a ISO and burned it to a CD. Slap the card in a 2011 Dell (which was compatible), and flashed it. Slapped it back in ASUS, got it booted into Windows, it froze loading drivers, booted a few times playing with bios... Tried updating drivers, it froze, it took the sas2**.sys, but still a SAS2004 FirePort (or something), instead of StorePort(or something). I think it should have been a SAS2008. Then connect SSD, booted and got DISK FAILURE. I figure I need to have PCIe drives listed in MB bios like LSI bios configuration. ASUS also wouldn't shut down, I had to turn off power supply. If I only wanted additional drives, it may have worked (with a few kinks), But I needed it to boot SSD. It a shame being MB has so many slots and features, but lacks an updated bios to utilize new add-in cards.