Inspiron 546, won't boot

Re: Dell Inspiron 546, Windows 10 O/S;  

Re; too to original post "why are my fans racing?
The background on this is extensive and complicated with off subject posts, etc. I thought it would be less complicated to submit a new post;  

Background;  My unit won't boot up. Included is symptom of steady amber/yellow light. & after numerous suggestions and procedures, including bad replacement boards from dell and shop analysis, there was no solution. 

 Yesterday, April 9, I decided to go over all of the suggestions and procedures offered by individuals on this forum. I started with and am on hold with the CMOS battery.  I took it out and checked it with a multimeter and git a reading of low/bad and replaced it. I powered up and saw that the power light, for an instant, was the blue/white color and then reverted to the amber/yellow light but now, it is blinking and accompanied by a two beep pattern. Before, the light was steady amber/yellow with no appearance of the blue/white light and no beeps at all. I understand that the beeping would come in to play if there were no cards in the RAM, but in this incident, there are three installed, so does this info lead anybody into what might be wrong. i.e. short? Thanks