Thank you very much for your help. The links you provided are great help. I have something to work on now. By the way, the Intel RST is causing a lot of problems. Different software crashing at different points. Not sure if it is the UEFI BIOS causing it. It is a beta version apparently from Gigabyte for this version of motherboard. And because I am not familiar with UEFI, I may have set up the UEFI incorrectly, especially with the hard disks. I think the files are not "written" correctly during download, well, I am guessing really. So, installed software crashed intermittenly. Uninstalled it. Downloaded it again, installed it again seemed to work fine. But then I proceeded to run software that I had downloaded ages ago, it just "stopped", said "application failed". All the hardware were working without any problem before I upgraded the bios to UEFI. Now, I cannot revert back, still waiting from Gigabyte's reply on how to revert my motherboard from UEFI to preious version. Anyway, that will be another story. Thank you very much for your help. Thank you.