3 long blinks 2 short blinks hp cap lock

[n9wff]

Once in a while, I will pick up my laptop (HP 15-f100dx) screen goes blank and the code comes up. Memory is seated good, just updated thE BIOS. can't find much help elsewhere on internet.
Possible problems?

 

[1shado1]

How many sticks of RAM are there?

 

[n9wff]

I had 1 stick of ram DDR3 4GB. Testing my theory out, I just replaced the RAM with another, and I still get it once in a while.
The fan is on and I can pick it up and on occasion, the screen locks up and goes fuzzy. Other times, Windows 10 resets, another time it the screen will go blank with the LED codes. I just updated the BIOS yesterday, it was doing this with the old BIOS. Considering the codes match up with bad memory and BIOS, I checked both as well. I reset the computer to factory settings (Windows 8) and updated to Windows 10 like fresh, with no change. I have taken the laptop apart and cleaned it out and checked out all connections. Running out of options next to memory dump and getting new motherboard, which is sad, since it is not even two years old (I have an old Pavilion zv5000 running!).
Outside of contacting HP which will say I need to spend $$$ to get their expertise, there must be a simpler solution.