|Unless you have messed with the CPU voltage settings, it is very unlikely that you fried the CPU. I would see if you can borrow a power supply from a friend to be able to try that out. You may be able to purchase a moderately priced power supply locally where you might be able to return it if it is not the problem. Look for a power supply with an active PFC, 80% or greater certified efficiency, a single 12Volt rail, a 3 year or greater warranty, from a quality company. Corsair makes a 430Watt model that is often on sale and has more usable 12volt amperage than many cheap 500watt and even some 600watt models and should be more than enough for your mini-tower (if you have upgraded your graphics card, please state this make and model number, since it will make a difference in power supply recommendations).|
You have to be a little bit crazy to keep you from going insane.