Hi,
You can try to remove the memory on the computer and check if the computer is making a beeping noise.
If yes, then install one memory at a time and check if the computer is able to boot.
If no, then reseat the other components like video card (if an external video card is present in the computer), sound card (if an external sound card is present in the computer), hard drive on the computer and check if it is able to boot. If you owner’s manual please refer to it.
Also, check all the cables are connected firmly on the motherboard on the computer.
If the computer is in warranty, you can contact the manufacturer so that they can replace the necessary parts on the computer.
Please post back the results.