Encountered a HP Pavilion 900 Series desktop today with a routine “no power” problem. A quick power supply swap restored life to the machine however the strangest problem occurred: The computer was stuck at the HP logo screen!
So what to do?
Thankfully this is pretty easy to solve. My specific problem was being caused by having the two CD-ROM drives connected to the motherboard without having the power supply connected to those drives. Once I connected the new power supply to the drives the system booted fine.
This is what you should do to fix this issue on your computer: simply open up your computer and go through the components (starting with the hard drive and ending with the RAM) to see which one is defective. A faulty device will cause this error. You just need to find out which one it is.