|If you remove the CPU you will need to remove and replace the thermal compound. Here is the proper way if you look up your CPU:|
I doubt that it is the CPU battery. Using the CMOS jumper (or removing the CMOS battery and then tapping the power on button 2 or 3 times) will clear the CMOS memory. Then immediately boot into BIOS set up, Reset to Defaults, Save and Exit and boot back to the BIOS and make sure that time, date, CPU, RAM, Graphics settings, etc. are properly set up for your hardware. Set as needed, save and exit.
It did sound like the power supply at first but once you tried a second power supply, it must be something else. If the BIOS settings do not do it then it is either 1- The improper installation of CPU - possibly thermal compound on CPU socket/bottom of CPU; 2- Bad CPU; Bad motherboard. 3- Small possibility of incorrect plugging of power supply into motherboard (PCIe 6pin/8pin plugs look a lot like CPU 4pin/8pin connectors, etc.) 4- Smaller possibility of incorrect voltage at outlet (though the power supply should be able to handle a fairly wide range of voltages without allowing incorrect voltages going out).
"it was recently built probably about 6 months ago. " so we can assume that it was working properly for a while?
If there was anything unusual going on with the machine or even with other electronics in the house, or even with a problem with something apparently unrelated like a transformer fire on an electrical pole nearby, please let us know this as well.
You have to be a little bit crazy to keep you from going insane.