Yeah , its like some sort of PSU error , as far as I can guess from far. Try without the video card - if it runs its definately a PSU problem - if not then we have to do some further steps to see if its fine ? Have you tried with another PSU while breadboarding ?
make sure you conencted the 4/8 pin atx power plug. that gives extra power to the mb. i would start with one dimm and no video or hard drives and make sure you can get into the mb bios and let the system sit there for 20-30 min and watch the mb temps. if the temps and voltages look good. from another pc download and update the bios of the mb from a usb stick. a lot of z77 mb new bios updates for cpu code..ram code..usb hangs..video cards..the list of updates for your mb is preaty long. think the bios is now up to 2.8 for your mb.
Those are not your problem at all....just check the power supply. If you go on roaming on other intensive sides of your PC that are not your problems you will end up in a situation where a real world helping hand also can not bring back your money.This forum is far off things.
.net framework update ? Well the problem you mentioned at first....your approach makes no sense as it clearly notifies of some hardware default or at max bios/firmware default. Anyway best of luck for your venture.