Power LED Is Green but the Computer Will Not Start

[BillChas]

Computer is a Pavilion 510-P030.  After powering down the PC, when attempting to restart, the power LED on back is green but pushing the power button has no effect. With the cover off, I noted that once the case fan jumped slightly like it was trying to start but that was all. I pulled the 2032 coin battery, it measured about 1.0 volt on a DVM. I replaced it with a new one at 3.0 volts. This did not improve anything. I saw something about pushing a CMOS reset button but I don't see one on the MB. 

Could this be a bad switch? 

There is apparently a document addressing this problem, but it is a dead link (c05206048).

I've got the feeling this is a minor problem but I need the PC operating ASAP or buy a new one.

[sandytechy20]

@BillChas

Welcome to the HP support community.

Try the steps mentioned in this HP document to fix the issue:- Click here

Let me know how it goes.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers.