Which Hardware require power?

[NiftyNiller]

If anyone could just tell me which Hardware require power from the PSU? (As simply as possible please 😀)

 

[Tom_Taplin]

Hard Drives, gpu, cpu, motherboard, CD drives, and any LEDs/ extra fans

 

[little_me]

Everything and anything inside the case?
you name it, it needs power, if it has moving parts, electronics or blinking lights, it needs power
Power button
Reset button
Fans
Led lights
disks
memory sticks
processors
add-on cards
drives
Except screws, they are not powered.