Well popular consensus agrees with the GPU being fried. There are many things to check when choosing a motherboard than the model number. The drives are not interchangeable from system to system easy. they have chip boards that are specific to each system, and they made minor changes every 45 months for the past 6 years.
I do not recommend trying this as it is very costly and time consuming when the parts don't mach. Then drives wont read video and audio problems will still remain.
But you can get lucky, and it all falls into place. I have a bach. in electronics and tried this with much trial and error. Make sure you find the DATE made when starting to buy parts, Along with model number and serial number.
GOOD LUCK hope this helps! If you feel i deserve it +rep me.