Hi @tiktokyoutube
What is the model number of the motherboard?
Here's an Asus link that describes what a [https://www.asus.com/support/faq/1029959/|1 long - 4 short beep error code] means.
First check if the CPU fan is working OK when the PC is turned on.
If it is OK then you may need the motherboard schematics to find out what's wrong.