Originally Posted by gemguy
What are the chances of the following components (cpu, gpu, ram, psu, and hdd) being stable if the mobo was fried from the power surge?
First, what is a surge. Electricity. For electricity to flow, an incoming and outgoing path must exist. What is the incoming and outgoing path through RAM? Does not exist. Only the incoming path exists. No damage.
Second, you have classic damage created by a protector that is too close to the computer and too far from earth ground. Any protection provided by a UPS already exists in computer power supplies. What does a protector do? Divert (connect, shunt, share, distribute) the surge from one wire to all others. In your case, a black wire surge could have been connected to the green safety ground wire. A direct connection to the motherboard that bypasses protection inside the power supply.
That was the incoming path. What was the outgoing path from motherboard? Look for further damage or overstress on that path.
What is not damaged? What is not in the path from cloud to earthborne charges?
Third, what does a UPS do? View its numeric specs. It has even less protection than the power strip protector. Don't take my word for it. View the numbers. How few joules? So close to zero to be no surge protection. But the number is not zero. Therefore the sales brochure says "Surge Protection". Those who live subjectively believe it only because others tell them to believe it. Those who need facts and numbers know better.
Surge protection is about earthing before energy enters the building. Responsible companies sell one 'whole house' protector to avoid this damage: General Electric, Keison, Intermatic, Square D, Siemens, Leviton, etc. The Cutler-Hammer solution sells in Lowes for less than $50. Effective protector that costs about $1 per appliance. Then surges need not seek earth ground destructively inside the building. No more motherboard damage.