Originally Posted by MadDog
Hard drive? No. You'd still see the BIOS screens on the monitor.
Graphics card? No. You'd hear the POST beep.
RAM? Probably not.
Motherboard? My guess.
PSU? Also a possibility, if one voltage died, you'd still see some lights.
I was joking. TBH, I don't really care, I was just attempting to make humor out of the myriad different suggestions.
I don't know anything about computers anyhow.