Hello MARTY1946,
OK I understand about the problem with HP needing to want to fix any problems with their products.
The reason that I asked if there is any warranty on the notebook was because If there is HP would normally be liable for its repair, opening up the case yourself gives any manufacturer enough of a reason to not honour any warranty that there may be.
If there is no warranty I would still go the local tech route first, they could check both the RAM and power issue in ten minutes and may not even charge a fee, if neither are the cause of the issue you have nothing to lose by investigating further yourself.
Asked previously but you may have missed it, does the internal cooling fan spin up at all?