If a computer beeps when powering on that definitely means the RAM is not connected correctly.
To fix this issue please follow these steps.
STEP 1. Power off and disconnect all the wires that are connected to the computer.
STEP 2. Now open the cover of the computer.
STEP 3. Now you will see the RAMs like in the picture below.
STEP 4. Now change/shuffle the RAMs location e.g Ram1 to Slot 4 and Ram 2 to Slot1.
STEP 5. Close your computer’s cover and plug all the cables back.
STEP 6. Now power on your computer and it should boot normally.