I have believed the Op Sys was on the ROM chip. That incorrect?
Longshadow wrote:
You didn't say HOW or what you did to install the drive...
They cannot just be "swapped".
Just in case - If you didn't copy the operating system and data to the new drive, there is nothing on the new drive, they come empty.
When the computer tries to boot, there is nothing on the drive for it to use, so the computer cannot boot.