Hi @idkcomputer
Check to see if your PC has multiple video outputs. If it does, try to connect the monitor to one of those other ports. Often times there are video outputs on the motherboard (on the rear up top) and on a video card (on the rear but lower). The default video output can be changed when a system reset (BIOS reset) is done.
Once you have video, you can check the BIOS as @oldturkey03 suggested to see if there are any Hard Drives (HDD) or storage media present.