The sound occurs approximately once every 30 seconds for one second in duration when the laptop is not plugged in to its charger.

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The laptop is an Alienware m15

Have you tried a new powersupply for the laptop and see if that changes anything? I have the same laptop but no issues.

Thank you. If the original Alienware m15, it is designated Alienware m15 R1 on the internet. 

I haven't tried this, I am hopeful of not having to buy another power supply if some other solution exists.

Hi @blattsmullet  the Alienware m15 R1 (2018) is designed to run hot. OP says that ticking sound also happens when not charging, perhaps this is a CPU crackling noise. If temperatures exceed 100ºC, a CPU,GPU to cooling system repaste is required. Please try and find location of ticking sound. Thank you. 

It sounds like a possible motherboard failure, we recommend sending it in for repairs. You could try doing a power drain to see if you can get it to post, follow the steps below to do a power drain. 

• Turn the system off and disconnect the AC adapter. 
• Disconnect the battery.
• Disconnect all external devices (USB devices, headsets, external monitors, etc.)
• Press and hold the power button for 30 seconds.
• Connect everything again and turn on the system.

Hi @blattsmullet  the system is not giving diagnostic lights or beeps, but it might be creating Events. Please open the Windows 10 Reliability Monitor and allow it to load timeline of Events.

If system getting too hot, stop using it, leave it running to allow the fans to reduce its CPU temperature.

The laptop should be used on a flat surface (table or tray) and increasing the air gap beneath the bottom rear is beneficial. As the laptop gets older, dust and debris will have entered the air vents. Remove rear cover, ensure that fan blades are clean and remove dust and debris from exhaust vents, motherboard, etc.