When i turn on my HP Elitedesk I get a SOLID RED LIGHT on the power button that doesnt go away. I opened the case and blew it out with a can of air. I also re seated the Ram. I ren Quick Diagnostics but everything passed. The PC still boots up and works like normal. Does this indicate a bad HDD. What does a solid red light on the power button mean? Its not flashing or beeping. Remains solid red throuought use.