My HP Envy has always had a few clicks from the box on start up. It now clicks 22 times and the HP Logo comes up then power cuts out to the monitor. I do a forced shutdown and restart the 22 clicks come up again on start up. Forced shutdown then I can sign in. I have fitted a 480 GB SSD and it has been running for 8 months with no trouble. Once it fires up the comp works fine. I haven't been game to shut it down completely and put it to sleep at night for the last three days. That works fine, wakes up and I use it all day. Have run all the HP Diagnostics Suspect power supply is my thoughts. What actually is the clicking noise from?