I my goodness, Belarc had run on this system a couple years ago showing there were two memory sticks in it. Now when I opened up to troubleshoot there was only one. I'm rushing off to buy another memory module. THanks for the tip.....
A computer lock-up is in most cases the result of instability. Instability is usually cased by parts getting underpowered, and since he not overclocking, and has swapped out numerous other parts, it leads me to believe his power supply is either dying, or not provided adaquent power..
PSU is indeed an abbreviation for power supply unit