What components are required for power mac G4 to boot

[Silicon]

Hi, I recently pulled out my dad’s power Mac G4 quicksilver and I tried to plug it in and boot it up but it didn’t turn on. He said he took some components out. I only know he took out the hard drive and the pram batteries but the others, I don’t know. That’s why I was asking what specific components are required for my model to boot up.

 

[obsolete]

Pop open the door and take a picture, lots of experienced people here will be able to tell you what if anything is missing.