|When you clear the CMOS you must have the computer unplugged. Did you do that? Then immediately you must enter the BIOS screens and reset values as needed.|
When first installing a new hard drive and OS you should start with minimal hardware. Especially peripheral hardware. No external flash drives, External drives, printers, scanners, etc.
You need to verify that the SATA controllers are enabled in the BIOS and the boot order is set for Floppy, CD, hard drive.
If the hard drive is not being configured in the BIOS and POST screens there is no sense in attempting to proceed further.
Are you sure you have the throttling jumper set correctly? SATA data cables must not have any sharp folds in them. Of course you must have a power cable connected to the hard drive too.
Was that motherboard previously running under Windows 7?
What is the exact model of the power supply? Was the power supply previously used in this setup?
After skimming this entire thread I am not sure I know if you just assembled this computer or simply replaced a drive.
I suggest you bench test the motherboard with only the following hardware: Power supply connected to motherboard and graphics card if necessary, CPU/HS/fan, one stick of RAM, onboard video or graphics card, monitor and keyboard. Nothing else. No case to board wiring or board to breakouts on the back. No drives of any kind. Try to boot with only those items by temporarily shorting the two power switch pins on the board. If the board doesn't start then remove it from the case and try the same again.