lizgoodwi537 I would like you to take the Ram Memory module/s out ('Stick'), and clean the gold plated contact pins on the bottom.
Typical example of a ram memory module showing the gold plated contact pins,http://en.wikipedia.org/wiki/File:Generic_DDR_Memory_%28Xytram%29.jpg
(You can click on the photo to enlarge. You can enlarge twice)
Computer on a table, computer unplugged from power, computer case open, Observe Anti-Static Precautions.
Use a pencil eraser to clean the contact pins. Both sides of the ram memory module have contact pins.
If you are Not using a solid pencil eraser, and the eraser on the end of a pencil, refrain from letting the metal band touch the contact pins.
Doesn't take much pressure. Just rub the eraser up, and down on each contact pin.
When you are finished it may look as though you have done nothing at all. The contact pin may not be much brighter than when you started.
It's okay I assure you that you have made a difference.
The gold plated contact pins corrode after a while from sitting. Doesn't take much corrosion to make a bad contact.
When you are finished cleaning, use air to remove the eraser dust. You can use a can of compressed air for computers, if available, or air pressure from your mouth will be sufficient.
Reinstall the ram memory module/s.
Close the computer case, plug the computer into power.
WAIT 1 minute, then turn the computer on.
Let's start with this easy procedure first.
Past this point we will be looking for bad Electrolytic Capacitors on the motherboard, and then into the Power Supply.