Is the drive correctly identified in bios?

Depending on how old your system is, I'm wondering if the motherboard battery needs replacing.

Hi Picasotrigger,

It would be helpful if you provided the model of your Dell.

Also, how do know its identified properly in bios?

I have a Dell XPS 600 with Windows 7, its about 4 years old

Thanks, got it working properly. Apparently it was looking for two other drives that didn't exist, I turned thos off and now starts up normally. Thanks again.

Just boot to the BIOS (F2) and see if your drive is listed there.