Seems to working just fine now. I did those steps (uninstalled all other hard drives) when I did this fresh install. It seems the bios update addressed more than what it said on the Asus site (core temp readings). Thanks for all your help. If the issue comes back, I'll be sure to post up. Thanks again.
I have exactly the same issue, updated the bios to 1401 but still having the BOOT/BCD issue. just wondering whether I have the bad drive or the motherboard (asus p5n-d) doesn't support SSD