Yes but I m not understanding the manual. That's why I m seeking help here.
The case connectors are labeled. Look to the manual's diagram. You see HDD LED. Now look to your case's internal connectors
DO you see HDD LED? But there are two HDD LED on the motherboard. Not a problem. Look to the back of the connector.
See the + and -? Match the case's HDD LED + and - with the motherboard's + and -. Rinse and repeat.