Hi my system specifications are:
CoolerMaster Cosmos 2
ASRock Z87 Extreme 11ac
Intel i7 4770K
G.Skill 16GB 2400
Noctua D14
Samsung 840 Pro 256GB
Samsung 840 Pro 512GB (Games)
Corsair SSD Force GT 120GB
2x Toshiba 3TB
Sony BD BWU-500S
LG GH24NSB0 24x
Gigabyte AMD 290X OC WindForce 4GB
Corsair AX1200i
Samsung S27C750P 27" LED
Windows 7 x64 Ultimate

Yesterday when i started my PC and went into Windows, unfortunately i came to a problem that, all the HDD that were installed in the LSI SAS 3008 Controller, were not recognized by the PC, althought that the driver was installed in the Device Manager and the PC was working OK, for more than two weeks now.
I tried to reinstalled the driver, did a ClearCMOS, but without any solution.
is my motherboard defective?